CN116573615A - Hydrogen peroxide and purification method thereof - Google Patents
Hydrogen peroxide and purification method thereof Download PDFInfo
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- CN116573615A CN116573615A CN202310624288.9A CN202310624288A CN116573615A CN 116573615 A CN116573615 A CN 116573615A CN 202310624288 A CN202310624288 A CN 202310624288A CN 116573615 A CN116573615 A CN 116573615A
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- hydrogen peroxide
- phosphoric acid
- nano
- purification method
- photocatalyst
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 318
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000000746 purification Methods 0.000 title claims abstract description 53
- 238000006243 chemical reaction Methods 0.000 claims abstract description 53
- 239000011941 photocatalyst Substances 0.000 claims abstract description 53
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 13
- 235000010323 ascorbic acid Nutrition 0.000 claims abstract description 10
- 239000011668 ascorbic acid Substances 0.000 claims abstract description 10
- 229960005070 ascorbic acid Drugs 0.000 claims abstract description 10
- VRBHBHDERVRLKH-UHFFFAOYSA-N cyclohexanol phosphoric acid Chemical class P(O)(O)(O)=O.C1(CCCCC1)O VRBHBHDERVRLKH-UHFFFAOYSA-N 0.000 claims abstract description 10
- 150000003016 phosphoric acids Chemical class 0.000 claims abstract description 10
- 150000000996 L-ascorbic acids Chemical class 0.000 claims abstract description 9
- 239000003607 modifier Substances 0.000 claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 22
- -1 phosphoric acid compound Chemical class 0.000 claims description 21
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 15
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims description 13
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 12
- 229940068041 phytic acid Drugs 0.000 claims description 12
- 235000010376 calcium ascorbate Nutrition 0.000 claims description 10
- 239000011692 calcium ascorbate Substances 0.000 claims description 10
- 229940047036 calcium ascorbate Drugs 0.000 claims description 10
- BLORRZQTHNGFTI-ZZMNMWMASA-L calcium-L-ascorbate Chemical compound [Ca+2].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] BLORRZQTHNGFTI-ZZMNMWMASA-L 0.000 claims description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000002052 molecular layer Substances 0.000 claims description 5
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Substances [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims description 5
- 229910001923 silver oxide Inorganic materials 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- GKDKOMAJZATYAY-UYSNGIAKSA-N [(1s,2r,4s,5r)-2,3,4-trihydroxy-5,6-diphosphonooxycyclohexyl] dihydrogen phosphate Chemical compound OC1[C@H](O)[C@@H](OP(O)(O)=O)C(OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@@H]1O GKDKOMAJZATYAY-UYSNGIAKSA-N 0.000 claims description 3
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 235000010378 sodium ascorbate Nutrition 0.000 claims description 3
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 claims description 3
- 229960005055 sodium ascorbate Drugs 0.000 claims description 3
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000004260 Potassium ascorbate Substances 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 235000019275 potassium ascorbate Nutrition 0.000 claims description 2
- 229940017794 potassium ascorbate Drugs 0.000 claims description 2
- CONVKSGEGAVTMB-RXSVEWSESA-M potassium-L-ascorbate Chemical compound [K+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] CONVKSGEGAVTMB-RXSVEWSESA-M 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 2
- 239000010452 phosphate Substances 0.000 claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- CTPQAXVNYGZUAJ-OAVICHNKSA-N [(1s,3r)-2-hydroxy-3,4,5,6-tetraphosphonooxycyclohexyl] dihydrogen phosphate Chemical compound OC1[C@H](OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)[C@@H]1OP(O)(O)=O CTPQAXVNYGZUAJ-OAVICHNKSA-N 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 claims 1
- 238000007146 photocatalysis Methods 0.000 claims 1
- AXZYGIPYNXQTON-UHFFFAOYSA-M sodium;(2,3,4,5,6-pentaphosphonooxycyclohexyl) hydrogen phosphate Chemical compound [Na+].OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)([O-])=O)C(OP(O)(O)=O)C1OP(O)(O)=O AXZYGIPYNXQTON-UHFFFAOYSA-M 0.000 claims 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 abstract description 32
- 239000012535 impurity Substances 0.000 abstract description 27
- 230000015556 catabolic process Effects 0.000 abstract description 20
- 238000006731 degradation reaction Methods 0.000 abstract description 20
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 29
- 239000000467 phytic acid Substances 0.000 description 10
- 235000002949 phytic acid Nutrition 0.000 description 10
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical group [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 230000001737 promoting effect Effects 0.000 description 5
- 230000009257 reactivity Effects 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 4
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000005502 peroxidation Methods 0.000 description 3
- 229910000160 potassium phosphate Inorganic materials 0.000 description 3
- 235000011009 potassium phosphates Nutrition 0.000 description 3
- 239000001488 sodium phosphate Substances 0.000 description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 description 3
- 235000011008 sodium phosphates Nutrition 0.000 description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- CDAISMWEOUEBRE-LKPKBOIGSA-N 1D-chiro-inositol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@H](O)[C@@H](O)[C@@H]1O CDAISMWEOUEBRE-LKPKBOIGSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 2
- 235000019799 monosodium phosphate Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 2
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 description 1
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 1
- PDMMFKSKQVNJMI-BLQWBTBKSA-N Testosterone propionate Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](OC(=O)CC)[C@@]1(C)CC2 PDMMFKSKQVNJMI-BLQWBTBKSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003957 anion exchange resin Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003729 cation exchange resin Substances 0.000 description 1
- 229940023913 cation exchange resins Drugs 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- WPEXVRDUEAJUGY-UHFFFAOYSA-B hexacalcium;(2,3,4,5,6-pentaphosphonatooxycyclohexyl) phosphate Chemical compound [Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])(=O)OC1C(OP([O-])([O-])=O)C(OP([O-])([O-])=O)C(OP([O-])([O-])=O)C(OP([O-])([O-])=O)C1OP([O-])([O-])=O WPEXVRDUEAJUGY-UHFFFAOYSA-B 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 150000004680 hydrogen peroxides Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 229960004838 phosphoric acid Drugs 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- OQZCJRJRGMMSGK-UHFFFAOYSA-M potassium metaphosphate Chemical compound [K+].[O-]P(=O)=O OQZCJRJRGMMSGK-UHFFFAOYSA-M 0.000 description 1
- 229940099402 potassium metaphosphate Drugs 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 235000019983 sodium metaphosphate Nutrition 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
本发明公开了一种过氧化氢及其纯化方法,该纯化方法包括如下步骤:在工业级过氧化氢中加入反应调节剂使体系pH=3.0~6.2,然后采用非游离态纳米光催化剂对工业级过氧化氢进行光催化,即得过氧化氢;所述反应调节剂包括无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物;所述无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物的重量比为(40~80):(18~45):(2~15)。本发明过氧化氢的纯化方法选用的反应调节剂能够保护纳米光催化剂不被腐蚀且促进纳米光催化剂对体系中有机杂质的降解、以及抑制和减少过氧化氢分解。
The invention discloses a hydrogen peroxide and a purification method thereof. The purification method comprises the following steps: adding a reaction regulator to the industrial-grade hydrogen peroxide to make the pH of the system = 3.0-6.2, and then using a non-dissociated nanometer photocatalyst to treat the industrial-grade hydrogen peroxide. Hydrogen peroxide is photocatalyzed to obtain hydrogen peroxide; the reaction regulator includes inorganic phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid compounds; the inorganic phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid The weight ratio of the compound is (40~80):(18~45):(2~15). The reaction modifier selected in the hydrogen peroxide purification method of the present invention can protect the nano photocatalyst from being corroded, promote the degradation of the organic impurities in the system by the nano photocatalyst, and inhibit and reduce the decomposition of hydrogen peroxide.
Description
技术领域technical field
本发明涉及过氧化氢纯化技术领域,更具体地,涉及一种过氧化氢及其纯化方法。The invention relates to the technical field of hydrogen peroxide purification, and more specifically, to a hydrogen peroxide and a purification method thereof.
背景技术Background technique
过氧化氢作为一种基础化工原料而被广泛应用于护工产品的合成、工业漂白、电子工业、医药等多种行业中。近年来,随着高纯过氧化氢需求量的快速增长,对过氧化氢中杂质含量指标的要求也越来越苛刻,为了满足高纯过氧化氢的要求,通常需要使工业级过氧化氢中总有机碳(TOC)的质量浓度从几百ppm降低到100ppm,甚至降低到5ppm以下。As a basic chemical raw material, hydrogen peroxide is widely used in the synthesis of nursing products, industrial bleaching, electronics industry, medicine and other industries. In recent years, with the rapid growth of the demand for high-purity hydrogen peroxide, the requirements for impurity content indicators in hydrogen peroxide have become more and more stringent. In order to meet the requirements of high-purity hydrogen peroxide, it is usually necessary to make industrial-grade hydrogen peroxide The mass concentration of total organic carbon (TOC) is reduced from several hundred ppm to 100ppm, even below 5ppm.
从目前的发展趋势来看,精馏法、膜分离法、吸附法、离子交换树脂法是现有常用的过氧化氢提纯方法,但是,这四种方法有各自的优缺点。其中,精馏法的优点是对去除无机和机械类杂质非常有效,但是,难以去除有机杂质。膜分离法由于过滤膜使用寿命短,需要频繁更换过滤膜,导致成本过高。吸附法主要是通过吸附剂本身的筛分与吸附作用达到纯化过氧化氢的目的,也因此需要频繁再生和更换吸附剂,也存在成本过高的问题。离子交换树脂法由于现有离子交换树脂本身的特性和过氧化氢的强氧化性,使得单靠阴、阳离子交换树脂结合净化技术生产高纯过氧化氢需要解决很多复杂的技术问题,且离子交换树脂被过氧化氢氧化后存在发生爆炸的隐患。Judging from the current development trend, rectification, membrane separation, adsorption, and ion-exchange resin are the commonly used hydrogen peroxide purification methods, but these four methods have their own advantages and disadvantages. Among them, the rectification method has the advantage of being very effective in removing inorganic and mechanical impurities, but it is difficult to remove organic impurities. Due to the short service life of the membrane separation method, the filter membrane needs to be replaced frequently, resulting in high cost. The adsorption method mainly achieves the purpose of purifying hydrogen peroxide through the sieving and adsorption of the adsorbent itself, and therefore requires frequent regeneration and replacement of the adsorbent, and also has the problem of high cost. Due to the characteristics of the existing ion exchange resin itself and the strong oxidation of hydrogen peroxide, the production of high-purity hydrogen peroxide by anion and cation exchange resins combined with purification technology needs to solve many complicated technical problems, and ion exchange There is a hidden danger of explosion after the resin is oxidized by hydrogen peroxide.
因此,开发一种新的能够抑制过氧化氢的分解、有效去除有机杂质、成本低、安全且技术简单的过氧化氢纯化方法是具有重要意义的。Therefore, it is of great significance to develop a new hydrogen peroxide purification method that can inhibit the decomposition of hydrogen peroxide, effectively remove organic impurities, and is low-cost, safe and technically simple.
发明内容Contents of the invention
本发明的首要目的是解决现有工业级过氧化氢纯化方法过氧化氢分解严重、不能有效去除有机杂质、成本高、安全性差且技术复杂的问题而提供一种过氧化氢的纯化方法。The primary purpose of the present invention is to solve the problems of severe hydrogen peroxide decomposition, inability to effectively remove organic impurities, high cost, poor safety and complicated technology in existing industrial-grade hydrogen peroxide purification methods and to provide a hydrogen peroxide purification method.
本发明的另一目的是提供一种过氧化氢。Another object of the present invention is to provide a kind of hydrogen peroxide.
为了达到上述目的,本发明采用了下列技术方案:In order to achieve the above object, the present invention adopts the following technical solutions:
一种过氧化氢的纯化方法,包括如下步骤:A method for purifying hydrogen peroxide, comprising the steps of:
在工业级过氧化氢中加入反应调节剂使体系pH=3.0~6.2,然后采用非游离态纳米光催化剂对工业级过氧化氢进行光催化,即得过氧化氢;Add a reaction regulator to the industrial-grade hydrogen peroxide to make the system pH = 3.0-6.2, and then use a non-dissociated nano-photocatalyst to photocatalyze the industrial-grade hydrogen peroxide to obtain hydrogen peroxide;
所述反应调节剂包括无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物;The reaction regulator includes inorganic phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid compounds;
所述无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物的重量比为(40~80):(18~45):(2~15)。The weight ratio of the inorganic phosphoric acid compound, cyclohexanol phosphoric acid compound and ascorbic acid compound is (40-80):(18-45):(2-15).
在进行工业级过氧化氢的纯化时,为了同时做到抑制过氧化氢分解和有效去除有机杂质,本发明采用了包括无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物的反应调节剂。本发明使用的反应调节剂可以使整个工业级过氧化氢体系维持在一定的pH范围内,降低过氧化氢的反应活性,抑制过氧化氢的分解;此外,反应调节剂中分子大小不同的无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物会通过氢键作用排序形成稳定的网状立体结构,吸附过氧化氢中的游离自由基,特别是·OH,进而减少了过氧化氢的分解,同时抑制了过氧化氢对纳米光催化剂的氧化腐蚀,促进了纳米光催化剂对体系中有机杂质的降解;此外,该网状立体结构还能捕获和吸附有机杂质,进一步促进纳米光催化剂对体系中有机杂质的降解。When purifying industrial-grade hydrogen peroxide, in order to simultaneously suppress the decomposition of hydrogen peroxide and effectively remove organic impurities, the present invention uses a reaction regulator comprising inorganic phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid compounds . The reaction regulator used in the present invention can maintain the whole industrial-grade hydrogen peroxide system within a certain pH range, reduce the reactivity of hydrogen peroxide, and inhibit the decomposition of hydrogen peroxide; Phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid compounds will form a stable network three-dimensional structure through hydrogen bond interaction, and absorb free radicals in hydrogen peroxide, especially OH, thereby reducing the hydrogen peroxide. At the same time, it inhibits the oxidative corrosion of hydrogen peroxide on nano-photocatalysts, and promotes the degradation of organic impurities in the system by nano-photocatalysts; in addition, the net-like three-dimensional structure can also capture and adsorb organic impurities, further promoting nano-photocatalysts to Degradation of organic impurities in the system.
当本发明的反应调节剂只选用无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物中的一种或两种时,降低了反应调节剂分子大小的多样性,使反应调节剂分子通过氢键排序形成的网状立体结构的稳定性变差,甚至无法形成网状立体结构,从而降低了对过氧化氢中的游离自由基和有机杂质的捕获、吸附作用,无法更好地抑制过氧化氢的分解,也无法更好地帮助纳米光催化剂阻挡过氧化氢的氧化腐蚀,降低了纳米光催化剂对有机杂质降解的促进作用。When the reaction regulator of the present invention only selects one or two of inorganic phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid compounds, the diversity of the molecular size of the reaction regulator is reduced, and the reaction regulator molecules pass through The stability of the network three-dimensional structure formed by hydrogen bond sorting becomes worse, and even the network three-dimensional structure cannot be formed, thereby reducing the capture and adsorption of free radicals and organic impurities in hydrogen peroxide, and it is impossible to better inhibit the hydrogen peroxide. The decomposition of hydrogen oxide cannot better help the nano-photocatalyst to block the oxidative corrosion of hydrogen peroxide, which reduces the promoting effect of the nano-photocatalyst on the degradation of organic impurities.
此外,本发明过氧化氢的纯化方法的技术简单,易实施,且具有很高的安全性,同时过氧化氢中的TOC被氧化降解为二氧化碳和水,不会给整个体系增加额外的污染物,有利于提高产品纯度。In addition, the technology of the hydrogen peroxide purification method of the present invention is simple, easy to implement, and has high safety, while the TOC in the hydrogen peroxide is oxidized and degraded into carbon dioxide and water, which will not add additional pollutants to the entire system , which is conducive to improving product purity.
综上,本发明通过选用包括无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物的反应调节剂来抑制过氧化氢分解和有效去除有机杂质,解决了现有工业级过氧化氢纯化方法过氧化氢分解严重、不能有效去除有机杂质、产品纯度低、安全性差且技术复杂的问题。In summary, the present invention suppresses the decomposition of hydrogen peroxide and effectively removes organic impurities by selecting reaction regulators including inorganic phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid compounds, and solves the problem of the existing industrial-grade hydrogen peroxide purification method. Hydrogen peroxide is severely decomposed, cannot effectively remove organic impurities, has low product purity, poor safety and complex technology.
优选地,所述无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物的重量比为(45~75):(25~40):(5~12)。Preferably, the weight ratio of the inorganic phosphoric acid compound, cyclohexanol phosphoric acid compound and ascorbic acid compound is (45-75):(25-40):(5-12).
优选地,所述无机磷酸类化合物为无机磷酸或其盐。Preferably, the inorganic phosphoric acid compound is inorganic phosphoric acid or a salt thereof.
进一步优选地,所述无机磷酸为磷酸、次磷酸、焦磷酸或偏磷酸中的一种或多种。Further preferably, the inorganic phosphoric acid is one or more of phosphoric acid, hypophosphorous acid, pyrophosphoric acid or metaphosphoric acid.
进一步优选地,所述盐为无机磷酸钠盐或无机磷酸钾盐中的一种或两种。Further preferably, the salt is one or both of sodium inorganic phosphate or potassium inorganic phosphate.
在本发明中,所述无机磷酸钠盐为磷酸钠盐、次磷酸钠盐、焦磷酸钠盐或偏磷酸钠盐中的一种或多种;所述无机磷酸钾盐为磷酸钾盐、次磷酸钾盐、焦磷酸钾盐或偏磷酸钾盐中的一种或多种;所述磷酸钠盐为磷酸钠、磷酸氢二钠、磷酸二氢钠中的一种或多种;所述磷酸钾盐为磷酸钾、磷酸氢二钾、磷酸二氢钾中的一种或多种。In the present invention, the sodium salt of inorganic phosphate is one or more of sodium phosphate, sodium hypophosphite, sodium pyrophosphate or sodium metaphosphate; the potassium salt of inorganic phosphate is potassium phosphate, hypophosphite One or more of potassium phosphate, potassium pyrophosphate or potassium metaphosphate; the sodium phosphate is one or more of sodium phosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate; the phosphoric acid The potassium salt is one or more of potassium phosphate, dipotassium hydrogen phosphate, and potassium dihydrogen phosphate.
优选地,所述环己醇类磷酸化合物为肌醇六磷酸、肌醇六磷酸钠、肌醇六磷酸钙、肌醇六磷酸锌、D-肌肌醇1,3,4,5,6-五磷酸五钾盐、D-肌醇-1,4,5,6-四(磷酸)钾盐、D-肌醇-1,4,5,6-四磷酸钠、D-肌醇-1,3,4,5-四(磷酸)铵盐或肌醇1,2,3-三磷酸中的一种或多种。Preferably, the cyclohexanol phosphoric acid compound is phytic acid, sodium phytic acid, calcium phytic acid, zinc phytic acid, D-inositol 1,3,4,5,6- Pentapotassium pentaphosphate, D-inositol-1,4,5,6-tetra(phosphate)potassium salt, D-inositol-1,4,5,6-sodium tetraphosphate, D-inositol-1, One or more of 3,4,5-tetra(phosphate)ammonium salt or inositol 1,2,3-triphosphate.
优选地,所述抗坏血酸类化合物为抗坏血酸、抗坏血酸钙、抗坏血酸钠或抗坏血酸钾中的一种或多种。Preferably, the ascorbic acid compound is one or more of ascorbic acid, calcium ascorbate, sodium ascorbate or potassium ascorbate.
优选地,所述反应调节剂占工业级过氧化氢的质量分数为0.01~4.00%。Preferably, the reaction regulator accounts for 0.01-4.00% by mass of the industrial grade hydrogen peroxide.
进一步优选地,所述反应调节剂占工业级过氧化氢的质量分数为0.05~2.50%。Further preferably, the mass fraction of the reaction regulator in technical grade hydrogen peroxide is 0.05-2.50%.
优选地,所述工业级过氧化氢是指质量分数为7.5~75.1%的过氧化氢。Preferably, the industrial-grade hydrogen peroxide refers to hydrogen peroxide with a mass fraction of 7.5-75.1%.
进一步优选地,所述工业级过氧化氢是指质量分数为7.5~70.1%的过氧化氢。Further preferably, the industrial-grade hydrogen peroxide refers to hydrogen peroxide with a mass fraction of 7.5-70.1%.
优选地,所述非游离态纳米光催化剂是指涂覆在光源外表面和/或容器内壁上的纳米光催化剂。Preferably, the non-free nano-photocatalyst refers to a nano-photocatalyst coated on the outer surface of the light source and/or the inner wall of the container.
本发明之所以将纳米光催化剂涂覆在光源外表面和/或容器内壁上,是因为发明人在前期研究实验中发现,纳米光催化剂如果分散在工业级过氧化氢溶液中,将会提高固体颗粒和杂质对过氧化氢的分解,不利于抑制和减少过氧化氢分解。The reason why the present invention coats the nano-photocatalyst on the outer surface of the light source and/or the inner wall of the container is because the inventor found in the previous research experiment that if the nano-photocatalyst is dispersed in an industrial-grade hydrogen peroxide solution, it will increase the solid The decomposition of hydrogen peroxide by particles and impurities is not conducive to inhibiting and reducing the decomposition of hydrogen peroxide.
本发明所述光源外表面在涂覆纳米光催化剂后,将插入工业级过氧化氢中。The outer surface of the light source in the present invention will be inserted into industrial grade hydrogen peroxide after coating the nanometer photocatalyst.
本发明所述容器在其容器内壁上涂覆纳米光催化剂后,将用于盛装工业级过氧化氢。The container of the present invention will be used to contain industrial-grade hydrogen peroxide after the nano photocatalyst is coated on the inner wall of the container.
本发明所述纳米光催化剂涂覆于光源外表面和容器内壁上后,将用容器盛装工业级过氧化氢,并将光源插入工业级过氧化氢中。After the nanometer photocatalyst of the present invention is coated on the outer surface of the light source and the inner wall of the container, the container is used to hold the industrial grade hydrogen peroxide, and the light source is inserted into the industrial grade hydrogen peroxide.
本发明的常规容器均可用于本发明,比如透明玻璃烧杯。Conventional containers of the present invention can be used in the present invention, such as clear glass beakers.
进一步优选地,所述纳米光催化剂在光源外表面和/或容器内壁上的涂覆量为1~30g/m2。Further preferably, the coating amount of the nano photocatalyst on the outer surface of the light source and/or the inner wall of the container is 1-30 g/m 2 .
进一步优选地,所述光源选用的光源为紫外光或混合光中的一种或两种。Further preferably, the light source selected as the light source is one or both of ultraviolet light or mixed light.
进一步优选地,所述光源为灯管。Further preferably, the light source is a lamp tube.
本发明的光源可以为可移除的光源。The light source of the present invention may be a removable light source.
优选地,所述纳米光催化剂为纳米二氧化钛、纳米氧化银、纳米氧化锌或石墨相氮化碳(g-C3N4)中的一种或多种。Preferably, the nano-photocatalyst is one or more of nano-titanium dioxide, nano-silver oxide, nano-zinc oxide or graphite phase carbon nitride (g-C3N4).
优选地,所述过氧化氢的纯化方法使用的装置结构如下,包括容器、位于容器内部的光源和纳米层;所述纳米层涂覆于容器内壁上和/或涂覆于光源外表面上;Preferably, the structure of the device used in the purification method of hydrogen peroxide is as follows, including a container, a light source located inside the container, and a nano-layer; the nano-layer is coated on the inner wall of the container and/or coated on the outer surface of the light source;
所述纳米层中,包含所述纳米光催化剂。The nano photocatalyst is included in the nano layer.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
与现有技术相比,本发明的有益效果是:Compared with prior art, the beneficial effect of the present invention is:
本发明过氧化氢的纯化方法通过选用包括无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物的反应调节剂来抑制过氧化氢分解和有效去除有机杂质,解决了现有工业级过氧化氢纯化方法过氧化氢分解严重、不能有效去除有机杂质、产品纯度低、安全性差且技术复杂的问题。The hydrogen peroxide purification method of the present invention suppresses the decomposition of hydrogen peroxide and effectively removes organic impurities by selecting reaction regulators including inorganic phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid compounds, and solves the problem of existing industrial-grade peroxidation. Hydrogen purification method has serious problems of hydrogen peroxide decomposition, inability to effectively remove organic impurities, low product purity, poor safety and complex technology.
附图说明Description of drawings
图1为实施例1过氧化氢的纯化方法使用的装置结构示意图,图中:1-容器(透明玻璃烧杯),2-光源(灯管),3-纳米层,4-过氧化氢。Fig. 1 is the device structure diagram that the purification method of embodiment 1 hydrogen peroxide uses, among the figure: 1-container (transparent glass beaker), 2-light source (lamp tube), 3-nanometer layer, 4-hydrogen peroxide.
图2为实施例19过氧化氢的纯化方法使用的装置结构示意图,图中:1-容器(透明玻璃烧杯),2-光源(灯管),3-纳米层,4-过氧化氢。Fig. 2 is the device structural representation that the purification method of embodiment 19 hydrogen peroxides uses, among the figure: 1-container (transparent glass beaker), 2-light source (lamp tube), 3-nanometer layer, 4-hydrogen peroxide.
具体实施方式Detailed ways
下面结合实施例进一步阐述本发明。这些实施例仅用于说明本发明而不用于限制本发明的范围。下例实施例中未注明具体条件的实验方法,通常按照本领域常规条件或按照制造厂商建议的条件;所使用的原料、试剂等,如无特殊说明,均为可从常规市场等商业途径得到的原料和试剂。本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。The present invention is further set forth below in conjunction with embodiment. These examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. The experimental method that does not indicate specific conditions in the following example embodiment, usually according to the conventional conditions in this field or according to the conditions suggested by the manufacturer; used raw materials, reagents, etc., if no special instructions, are available from commercial channels such as conventional markets Raw materials and reagents obtained. Any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention fall within the scope of the present invention.
实施例1Example 1
本实施例提供一种过氧化氢的纯化方法,包括如下步骤:The present embodiment provides a kind of purification method of hydrogen peroxide, comprises the steps:
如图1所示,在装有1000mL质量分数为35%的过氧化氢4的2.0L透明玻璃烧杯1中加入反应调节剂使体系pH=4.5,并插入外表面涂覆了纳米光催化剂的灯管2,通电,用混合光进行光照60min,即得过氧化氢;As shown in Figure 1, in the 2.0L transparent glass beaker 1 that 1000mL mass fraction is equipped with 35% hydrogen peroxide 4, add reaction regulator to make the system pH=4.5, and insert the lamp that outer surface has been coated with nanometer photocatalyst Tube 2, energized, illuminated with mixed light for 60 minutes to obtain hydrogen peroxide;
所述反应调节剂由磷酸氢二钠、肌醇六磷酸和抗坏血酸钙按重量比59:34:7制成,且反应调节剂占35%的过氧化氢的质量分数为2%;The reaction regulator is made of disodium hydrogen phosphate, phytic acid and calcium ascorbate in a weight ratio of 59:34:7, and the reaction regulator accounts for 35% of hydrogen peroxide with a mass fraction of 2%;
所述纳米光催化剂由纳米氧化银和纳米二氧化钛按重量比1:1的比例混合配制得到,且纳米光催化剂在灯管上的涂覆量为25g/m2,灯管的规格为混合光波长范围200~500nm;The nano-photocatalyst is prepared by mixing nano-silver oxide and nano-titanium dioxide in a weight ratio of 1:1, and the coating amount of the nano-photocatalyst on the lamp tube is 25g/m 2 , and the specification of the lamp tube is Mixed light wavelength range 200~500nm;
图1为实施例1过氧化氢的纯化方法使用的装置结构示意图,图中:1-容器(透明玻璃烧杯),2-光源(灯管),3-纳米层,4-过氧化氢;所述纳米层3中,包含所述纳米光催化剂。Fig. 1 is the device structural representation that the purification method of embodiment 1 hydrogen peroxide uses, among the figure: 1-container (transparent glass beaker), 2-light source (lamp tube), 3-nanometer layer, 4-hydrogen peroxide; The nanometer layer 3 includes the nanometer photocatalyst.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
实施例2~5和对比例1~2Embodiment 2~5 and comparative example 1~2
实施例2~5和对比例1~2提供过氧化氢的纯化方法,实施例2~5和对比例1~2与实施例1的差别在于反应调节剂磷酸氢二钠、肌醇六磷酸和抗坏血酸钙的重量比以及体系pH是不同的,同时其反应调节剂占35%的过氧化氢的质量分数均为2%,其余参考实施例1,具体如下表所示:Embodiment 2~5 and comparative example 1~2 provide the purification method of hydrogen peroxide, the difference of embodiment 2~5 and comparative example 1~2 and embodiment 1 is that reaction regulator disodium hydrogen phosphate, phytic acid and The weight ratio of calcium ascorbate and the pH of the system are different, and the mass fraction of hydrogen peroxide whose reaction modifier accounts for 35% is 2% simultaneously, and all the other reference examples 1 are specifically shown in the following table:
表1实施例1~5和对比例1~2的磷酸氢二钠、肌醇六磷酸和抗坏血酸钙的重量比和体系pHThe weight ratio and system pH of disodium hydrogen phosphate, phytic acid and calcium ascorbate of table 1 embodiment 1~5 and comparative example 1~2
实施例6~11Embodiment 6-11
实施例6~11提供过氧化氢的纯化方法,实施例6~11与实施例1的差别在于反应调节剂占35%的过氧化氢的质量分数以及体系pH是不同的,其余参考实施例1,具体如下表所示:Embodiment 6~11 provides the purification method of hydrogen peroxide, and the difference between embodiment 6~11 and embodiment 1 is that the massfraction of the hydrogen peroxide that reaction regulator accounts for 35% and system pH are different, and all the other reference examples 1 , as shown in the following table:
表2实施例1和实施例6~11的反应调节剂占35%的过氧化氢的质量分数和体系pHThe reaction modifier of table 2 embodiment 1 and embodiment 6~11 accounts for the massfraction of 35% hydrogen peroxide and system pH
实施例12~15Examples 12-15
实施例12~15提供过氧化氢的纯化方法,实施例12~15与实施例1的差别在于过氧化氢的质量分数以及体系pH是不同的,同时其反应调节剂占35%的过氧化氢的质量分数均为2%,其余参考实施例1,具体如下表所示:Embodiment 12~15 provides the purification method of hydrogen peroxide, and the difference of embodiment 12~15 and embodiment 1 is that the massfraction of hydrogen peroxide and system pH are different, and its reaction regulator accounts for 35% hydrogen peroxide simultaneously The massfraction of all the others is 2%, and all the other reference examples 1, specifically as shown in the following table:
表3实施例1和实施例12~15的过氧化氢的质量分数和体系pHThe massfraction of the hydrogen peroxide of table 3 embodiment 1 and embodiment 12~15 and system pH
实施例16Example 16
本实施例提供一种过氧化氢的纯化方法,参考实施例1,与实施例1的差别在于:This embodiment provides a kind of purification method of hydrogen peroxide, with reference to embodiment 1, the difference with embodiment 1 is:
所述反应调节剂由磷酸、肌醇1,2,3-三磷酸和抗坏血酸钙按重量比50:38:12制成,且反应调节剂占35%的过氧化氢的质量分数为2%;所述纳米光催化剂为纳米二氧化钛;且用紫外光代替混合光,紫外光波长为254nm。The reaction regulator is made of phosphoric acid, inositol 1,2,3-triphosphate and calcium ascorbate in a weight ratio of 50:38:12, and the reaction regulator accounts for 35% of hydrogen peroxide with a mass fraction of 2%; The nano-photocatalyst is nano-titanium dioxide; and the mixed light is replaced by ultraviolet light, and the wavelength of the ultraviolet light is 254nm.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
实施例17Example 17
本实施例提供一种过氧化氢的纯化方法,参考实施例1,与实施例1的差别在于:This embodiment provides a kind of purification method of hydrogen peroxide, with reference to embodiment 1, the difference with embodiment 1 is:
所述反应调节剂由磷酸二氢钠、D-肌肌醇1,3,4,5,6-五磷酸五钾盐和抗坏血酸钠按重量比60:36:4制成,且反应调节剂占35%的过氧化氢的质量分数为2%;所述纳米光催化剂为纳米氧化银;且用紫外光代替混合光,紫外光波长为254nm。The reaction regulator is made of sodium dihydrogen phosphate, D-inositol 1,3,4,5,6-pentaphosphate pentapotassium salt and sodium ascorbate in a weight ratio of 60:36:4, and the reaction regulator accounts for The mass fraction of 35% hydrogen peroxide is 2%; the nano photocatalyst is nano silver oxide; and the mixed light is replaced by ultraviolet light, and the wavelength of ultraviolet light is 254nm.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
实施例18Example 18
本实施例提供一种过氧化氢的纯化方法,参考实施例1,与实施例1的差别在于:This embodiment provides a kind of purification method of hydrogen peroxide, with reference to embodiment 1, the difference with embodiment 1 is:
所述反应调节剂由磷酸、肌醇六磷酸和抗坏血酸钙按重量比55:40:5制成,且反应调节剂占35%的过氧化氢的质量分数为2%;所述纳米光催化剂为石墨相氮化碳(g-C3N4)。The reaction regulator is made of phosphoric acid, phytic acid and calcium ascorbate in a weight ratio of 55:40:5, and the mass fraction of hydrogen peroxide that the reaction regulator accounts for 35% is 2%; the nano photocatalyst is Graphite phase carbon nitride (g-C3N4).
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
实施例19Example 19
本实施例提供一种过氧化氢的纯化方法,包括如下步骤:The present embodiment provides a kind of purification method of hydrogen peroxide, comprises the steps:
如图2所示,将纳米光催化剂3直接涂覆在盛装过氧化氢溶液的2.0L透明玻璃烧杯1内壁上,然后加入1000mL质量分数为35%的过氧化氢4,再加入反应调节剂使体系pH=4.5,并插入未经处理的灯管2,通电,用混合光进行光照60min,即得过氧化氢;As shown in Figure 2, the nano-photocatalyst 3 is directly coated on the inner wall of a 2.0L transparent glass beaker 1 containing hydrogen peroxide solution, then 1000 mL of hydrogen peroxide 4 with a mass fraction of 35% is added, and then a reaction regulator is added to make the The pH of the system is 4.5, and an untreated lamp tube 2 is inserted, energized, and illuminated with mixed light for 60 minutes to obtain hydrogen peroxide;
所述反应调节剂由磷酸氢二钠、肌醇六磷酸和抗坏血酸钙按重量比59:34:7制成,且反应调节剂占35%的过氧化氢的质量分数为2%;The reaction regulator is made of disodium hydrogen phosphate, phytic acid and calcium ascorbate in a weight ratio of 59:34:7, and the reaction regulator accounts for 35% of hydrogen peroxide with a mass fraction of 2%;
灯管的规格为混合光波长为200~500nm;The specification of the lamp is The wavelength of the mixed light is 200-500nm;
所述纳米光催化剂由纳米氧化银和纳米二氧化钛按重量比1:1的比例混合配制得到,且纳米光催化剂的用量与实施例1涂覆在灯管表面的纳米光催化剂的用量一致;The nano-photocatalyst is prepared by mixing nano-silver oxide and nano-titanium dioxide in a ratio of 1:1 by weight, and the amount of the nano-photocatalyst is consistent with the amount of the nano-photocatalyst coated on the surface of the lamp tube in Example 1;
图2为实施例19过氧化氢的纯化方法使用的装置结构示意图,图中:1-容器(透明玻璃烧杯),2-光源(灯管),3-纳米层,4-过氧化氢;所述纳米层3中,包含所述纳米光催化剂。Fig. 2 is the device structure schematic diagram that the purification method of embodiment 19 hydrogen peroxide uses, among the figure: 1-container (transparent glass beaker), 2-light source (lamp tube), 3-nanometer layer, 4-hydrogen peroxide; The nanometer layer 3 includes the nanometer photocatalyst.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
对比例3Comparative example 3
本对比例提供一种过氧化氢的纯化方法,参考实施例1,与实施例1的差别在于:不含反应调节剂。This comparative example provides a method for purifying hydrogen peroxide, referring to Example 1, the difference from Example 1 is that it does not contain a reaction regulator.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
对比例4Comparative example 4
本对比例提供一种过氧化氢的纯化方法,参考实施例1,与实施例1的差别在于:不含纳米光催化剂。This comparative example provides a method for purifying hydrogen peroxide, referring to Example 1, the difference from Example 1 is that it does not contain nano photocatalyst.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
对比例5Comparative example 5
本对比例提供一种过氧化氢的纯化方法,参考实施例1,与实施例1的差别在于:This comparative example provides a kind of purification method of hydrogen peroxide, with reference to Example 1, the difference with Example 1 is:
所述反应调节剂为磷酸氢二钠。The reaction modifier is disodium hydrogen phosphate.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
对比例6Comparative example 6
本对比例提供一种过氧化氢的纯化方法,参考实施例1,与实施例1的差别在于:This comparative example provides a kind of purification method of hydrogen peroxide, with reference to Example 1, the difference with Example 1 is:
所述反应调节剂为磷酸氢二钠:抗坏血酸钙按重量比59:7制成。The reaction regulator is made of disodium hydrogen phosphate: calcium ascorbate in a weight ratio of 59:7.
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
对比例7Comparative example 7
本对比例提供一种过氧化氢的纯化方法,参考实施例1,与实施例1的差别在于:纳米光催化剂直接加入质量分数为35%的过氧化氢中,不涂覆在灯管表面上。This comparative example provides a method for purifying hydrogen peroxide. Referring to Example 1, the difference from Example 1 is that the nano photocatalyst is directly added to the hydrogen peroxide with a mass fraction of 35%, and is not coated on the surface of the lamp tube. .
一种过氧化氢,由上述纯化方法制备得到。A hydrogen peroxide prepared by the above purification method.
性能测试Performance Testing
对各实施例和对比例的过氧化氢进行TOC浓度测试和过氧化氢分解率测试,测试方法如下:The hydrogen peroxide of each embodiment and comparative example is carried out TOC concentration test and hydrogen peroxide decomposition rate test, test method is as follows:
TOC浓度测试:过氧化氢中的有机碳在催化剂三氧化二铬和石棉的作用下,于900℃的氧气中被氧化成二氧化碳,随后利用氧气流将二氧化碳入红外线气体分析仪,进而测定过氧化氢的总有机碳(TOC)浓度。TOC concentration test: The organic carbon in hydrogen peroxide is oxidized to carbon dioxide in oxygen at 900°C under the action of the catalyst dichromium trioxide and asbestos, and then the carbon dioxide is injected into the infrared gas analyzer by oxygen flow to measure the peroxidation Total organic carbon (TOC) concentration of hydrogen.
过氧化氢分解率测试:根据过氧化氢在酸性介质中与高锰酸钾发生氧化还原反应的原理,用高锰酸钾溶液滴定纯化前后的过氧化氢,再根据公式计算过氧化氢分解率:Hydrogen peroxide decomposition rate test: According to the principle of redox reaction between hydrogen peroxide and potassium permanganate in acidic medium, the hydrogen peroxide before and after purification is titrated with potassium permanganate solution, and then the hydrogen peroxide decomposition rate is calculated according to the formula :
过氧化氢分解率(%)=(纯化前过氧化氢的质量分数-纯化后过氧化氢的质量分数)/纯化前过氧化氢的质量分数。Hydrogen peroxide decomposition rate (%) = (mass fraction of hydrogen peroxide before purification - mass fraction of hydrogen peroxide after purification)/mass fraction of hydrogen peroxide before purification.
测试结果如表4所示。The test results are shown in Table 4.
表4各实施例和对比例的性能测试结果The performance test result of each embodiment and comparative example of table 4
从表4可知:It can be seen from Table 4:
(1)实施例1~5的TOC降解率95.12~99.02%远大于对比例1~2的45.10~48.78%,且其过氧化氢分解率0.03~0.46%远小于对比例1~2的4.85~6.42%,表明当反应调节剂中的无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物的重量比在(40~80):(18~45):(2~15)范围内时,反应调节剂能够吸附过氧化氢中的游离自由基,特别是·OH,进而减少了过氧化氢的分解,同时抑制了过氧化氢对纳米光催化剂的氧化腐蚀,促进了纳米光催化剂对体系中有机杂质的降解;此外,反应调节剂还能捕获和吸附有机杂质,进一步促进纳米光催化剂对体系中有机杂质的降解。(1) The TOC degradation rate 95.12~99.02% of Examples 1~5 is far greater than 45.10~48.78% of Comparative Examples 1~2, and its hydrogen peroxide decomposition rate 0.03~0.46% is far less than 4.85~2 of Comparative Examples 1~2 6.42%, show that when the weight ratio of the inorganic phosphoric acid compound, cyclohexanol phosphoric acid compound and ascorbic acid compound in the reaction regulator is in the scope of (40~80):(18~45):(2~15), The reaction regulator can absorb free radicals in hydrogen peroxide, especially OH, thereby reducing the decomposition of hydrogen peroxide, and at the same time inhibiting the oxidation and corrosion of hydrogen peroxide on the nano-photocatalyst, and promoting the nano-photocatalyst to the system. Degradation of organic impurities; in addition, the reaction regulator can also capture and adsorb organic impurities, and further promote the degradation of organic impurities in the system by nano photocatalysts.
(2)使用了反应调节剂的实施例1、实施例6~11的TOC降解率88.29~99.02%远大于未使用反应调节剂的对比例3的39.71%,且其过氧化氢分解率0.03~2.20%远小于未使用反应调节剂的对比例3的15.31%,表明使用本发明的反应调节剂不仅能够促进纳米光催化剂对体系中有机杂质的降解,而且能够降低过氧化氢的反应活性,抑制过氧化氢的分解;而当反应调节剂占工业级过氧化氢的质量分数为0.01~4.00%时,反应调节剂能够更好地促进纳米光催化剂对体系中有机杂质的降解,也能够更好地降低过氧化氢的反应活性、抑制过氧化氢的分解。(2) The TOC degradation rate 88.29~99.02% of embodiment 1, embodiment 6~11 that have used reaction regulator is far greater than 39.71% of the comparative example 3 that does not use reaction regulator, and its hydrogen peroxide decomposition rate is 0.03~ 2.20% is far less than the 15.31% of the comparative example 3 that does not use the reaction regulator, shows that the reaction regulator of the present invention can not only promote the degradation of organic impurities in the system by the nano photocatalyst, but also reduce the reactivity of hydrogen peroxide, inhibit Decomposition of hydrogen peroxide; and when the mass fraction of the reaction regulator accounting for industrial grade hydrogen peroxide is 0.01~4.00%, the reaction regulator can better promote the degradation of organic impurities in the system by the nano photocatalyst, and can also better Reduce the reactivity of hydrogen peroxide and inhibit the decomposition of hydrogen peroxide.
(3)实施例1、12~15的TOC降解率为94.24~99.33%、过氧化氢分解率为0.03~0.88%,表明在质量分数为7.5~75.1%的过氧化氢中,特别是在质量分数为7.5~70.1%的过氧化氢中,本发明的反应调节剂均能够很好地促进纳米光催化剂对体系中有机杂质的降解,且能够很好地降低过氧化氢的反应活性,抑制过氧化氢的分解。(3) The TOC degradation rate of embodiment 1, 12~15 is 94.24~99.33%, the hydrogen peroxide decomposition rate is 0.03~0.88%, shows that in the hydrogen peroxide that mass fraction is 7.5~75.1%, especially in mass fraction In hydrogen peroxide with a fraction of 7.5% to 70.1%, the reaction modifier of the present invention can well promote the degradation of organic impurities in the system by the nanophotocatalyst, and can well reduce the reactivity of hydrogen peroxide and inhibit over Decomposition of hydrogen oxide.
(4)纳米光催化剂涂覆在光源外表面上的实施例1的TOC降解率为99.02%、过氧化氢分解率为0.03%;纳米光催化剂涂覆在容器内壁上的实施例19的TOC降解率为95.54%、过氧化氢分解率为2.57%;而纳米光催化剂直接加入质量分数为35%的过氧化氢中的对比例7的TOC降解率为89.16%、过氧化氢分解率为3.23%;表明相比于纳米光催化剂以直接加入过氧化氢中的游离态形式使用,本发明的纳米光催化剂以非游离态形式使用时,特别是当纳米光催化剂涂覆在光源外表面上时,能够更好地促进纳米光催化剂对体系中有机杂质的降解,也能够更好地降低过氧化氢的反应活性、抑制过氧化氢的分解。(4) The TOC degradation rate of Example 1 coated with the nano-photocatalyst on the outer surface of the light source is 99.02%, and the decomposition rate of hydrogen peroxide is 0.03%; the TOC degradation rate of Example 19 coated with the nano-photocatalyst on the inner wall of the container The rate is 95.54%, the hydrogen peroxide decomposition rate is 2.57%; and the TOC degradation rate of comparative example 7 in the hydrogen peroxide that the nanometer photocatalyst directly adds mass fraction is 35% is 89.16%, the hydrogen peroxide decomposition rate is 3.23% show that compared to the use of the free state in which the nano-photocatalyst is directly added to hydrogen peroxide, when the nano-photocatalyst of the present invention is used in a non-free state, especially when the nano-photocatalyst is coated on the outer surface of the light source, it can be more Promoting the degradation of organic impurities in the system by nano photocatalysts can also better reduce the reactivity of hydrogen peroxide and inhibit the decomposition of hydrogen peroxide.
(5)实施例1的TOC降解率99.02%远大于对比例3~4的1.98~39.71%,且其过氧化氢分解率0.03%远小于对比例3~4的0.11~15.31%,表明相比于含反应调节剂和纳米光催化剂的实施例1,不含反应调节剂的对比例3无法保护纳米光催化剂不被过氧化氢氧化腐蚀,使TOC降解率发生下降,同时其也无法抑制过氧化氢的分解,导致过氧化氢的分解率升高;而只含反应调节剂的对比例4虽然能够抑制过氧化氢分解,但是不能降解有机杂质。(5) The TOC degradation rate 99.02% of embodiment 1 is far greater than 1.98~39.71% of comparative examples 3~4, and its hydrogen peroxide decomposition rate 0.03% is far less than 0.11~15.31% of comparative examples 3~4, shows that compared Compared with Example 1 containing a reaction regulator and a nano-photocatalyst, Comparative Example 3 without a reaction regulator cannot protect the nano-photocatalyst from being oxidized and corroded by hydrogen peroxide, so that the TOC degradation rate is reduced, and it cannot inhibit peroxidation. The decomposition of hydrogen leads to an increase in the decomposition rate of hydrogen peroxide; while Comparative Example 4 containing only a reaction modifier can inhibit the decomposition of hydrogen peroxide, but cannot degrade organic impurities.
(6)实施例1的TOC降解率99.02%远大于对比例5~6的34.63~42.16%,且其过氧化氢分解率0.03%远小于对比例5~6的4.20~5.65%,表明当本发明的反应调节剂只选用无机磷酸类化合物、环己醇类磷酸化合物和抗坏血酸类化合物中的一种或两种时,降低了反应调节剂分子大小的多样性,使反应调节剂分子通过氢键排序形成的网状立体结构的稳定性变差,甚至无法形成网状立体结构,从而降低了对过氧化氢中的游离自由基和有机杂质的捕获、吸附作用,无法更好地抑制过氧化氢的分解,也无法更好地帮助纳米光催化剂阻挡过氧化氢的氧化腐蚀,降低了纳米光催化剂对有机杂质降解的促进作用。(6) The TOC degradation rate 99.02% of Example 1 is far greater than 34.63~42.16% of Comparative Examples 5~6, and its hydrogen peroxide decomposition rate 0.03% is far less than 4.20~5.65% of Comparative Examples 5~6, indicating that when this When only one or two of inorganic phosphoric acid compounds, cyclohexanol phosphoric acid compounds and ascorbic acid compounds are selected as the reaction modifier of the invention, the diversity of the molecular size of the reaction regulator is reduced, and the reaction regulator molecules are hydrogen-bonded The stability of the network three-dimensional structure formed by sorting becomes worse, and even the network three-dimensional structure cannot be formed, thereby reducing the capture and adsorption of free radicals and organic impurities in hydrogen peroxide, and cannot better inhibit hydrogen peroxide. The decomposition of the nano-photocatalyst cannot better help the nano-photocatalyst to block the oxidative corrosion of hydrogen peroxide, which reduces the promoting effect of the nano-photocatalyst on the degradation of organic impurities.
显然,本发明的上述实施例仅仅是为清楚地说明本发明所作的举例,而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明权利要求的保护范围之内。Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.
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