JPS58199704A - Manufacture of adduct of sodium carbonate to hydrogen peroxide - Google Patents
Manufacture of adduct of sodium carbonate to hydrogen peroxideInfo
- Publication number
- JPS58199704A JPS58199704A JP8140082A JP8140082A JPS58199704A JP S58199704 A JPS58199704 A JP S58199704A JP 8140082 A JP8140082 A JP 8140082A JP 8140082 A JP8140082 A JP 8140082A JP S58199704 A JPS58199704 A JP S58199704A
- Authority
- JP
- Japan
- Prior art keywords
- sodium carbonate
- hydrogen peroxide
- concentration
- added
- granular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title claims abstract description 60
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910000029 sodium carbonate Inorganic materials 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 24
- 239000011780 sodium chloride Substances 0.000 claims abstract description 12
- 239000012452 mother liquor Substances 0.000 claims abstract description 9
- 229940005740 hexametaphosphate Drugs 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- -1 silicic acid compound Chemical class 0.000 claims abstract description 5
- 239000003381 stabilizer Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 22
- GEMCGUOJDLYZJY-UHFFFAOYSA-N carbonic acid;hydrogen peroxide;sodium Chemical compound [Na].OO.OC(O)=O GEMCGUOJDLYZJY-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 150000002681 magnesium compounds Chemical class 0.000 abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- 239000011777 magnesium Substances 0.000 abstract description 2
- 235000017550 sodium carbonate Nutrition 0.000 abstract 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 16
- 239000011734 sodium Substances 0.000 description 13
- 229910052760 oxygen Inorganic materials 0.000 description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は中空粒状で且つ安定化された炭酸ナトリウム過
酸化水素付加物（２ＮａｌＣＯ３・３）（，０，以下Ｐ
Ｃと略称する。）の製造法に関するものである。Detailed Description of the Invention The present invention provides a hollow granular and stabilized sodium carbonate hydrogen peroxide adduct (2NalCO3.3) (,0, hereinafter P
It is abbreviated as C. ).
ＰＣは主として家庭用あるいは業務用の酸素系漂白剤と
して、単独あるいは洗剤に配合されて一般的に使用され
ている。PC is generally used as an oxygen bleaching agent for household or commercial use, either alone or in combination with detergents.
ＰＣの製造法に関して種々の報告があるが、ＰＣ（７）
５１品として求められる性質は、まず安定性。There are various reports regarding the manufacturing method of PC, but PC(7)
The first quality required for 51 products is stability.
流動性に関して考゛えると、緻密な大きな粒子が良好で
あるが、それでは水溶性が悪く、又、カサ比重が高いの
でカサ比重の軽い洗剤に配合した場合。When considering fluidity, dense large particles are good, but they have poor water solubility and have a high bulk specific gravity, so when blended into a detergent with a light bulk specific gravity.
分離してしまう等の問題が起る。一方、カサ比重の軽い
粒子を作ると２表面積が大きくなり安定性が悪くなり、
又９粒子の強度が下るので輸送中にこわれ、微粉化しカ
サ比重が重くなってしまう等の欠点が表れて来る。これ
らの性質を一応満足させるには９粒子が中空で且つ殻が
緻密であることが望ましい。本発明はそのような中空Ｐ
Ｃを安価に製造する方法を提供することである。Problems such as separation may occur. On the other hand, if particles with a light bulk specific gravity are made, the surface area will increase and the stability will deteriorate.
Also, since the strength of the 9 particles decreases, they break during transportation, resulting in pulverization, resulting in increased bulk specific gravity, and other drawbacks. In order to satisfy these properties to a certain extent, it is desirable that the nine particles be hollow and have dense shells. The present invention provides such a hollow P
The object of the present invention is to provide a method for manufacturing C at low cost.
即ち９本発明は炭酸ナトリウム、過酸化水素および塩化
ナトリウムを含有する溶液に粒状炭酸ナトリウム、過酸
化水素およびヘキサメタリン酸塩を添加することを特徴
とする中空粒状なＰＣの製造法に関する。That is, the present invention relates to a method for producing hollow granular PC, which is characterized by adding granular sodium carbonate, hydrogen peroxide, and hexametaphosphate to a solution containing sodium carbonate, hydrogen peroxide, and sodium chloride.
中空なＰＣ生成の機構は、Ｈヨ０．を含む溶液中に粒状
Ｎａ、Ｃｏｇを添加した場合、Ｎａ、ＣＯ，が溶け。The mechanism of hollow PC generation is Hyo0. When granular Na and Cog are added to a solution containing Na and CO, they dissolve.
沖合に拡散して行く際にＨｌへと反応し＋ Ｎ ａ２
Ｃ０１粒子表面に空隙のあるＰＣの薄層がまず形成され
。When it diffuses offshore, it reacts to Hl + Na2
A thin layer of PC with voids is first formed on the surface of the C01 particles.
その空隙を通して内部からＮ ａｌ ＣＯＨの溶出が起
り。N al COH elutes from inside through the voids.
外部からのＩｆ、 ０．との反応によってＰＣ層は徐々
に厚みを増し、その結果、中空粒状なＰＣが生成される
のであるが、ここにはＮ ａ、 ｃｏ、の濃度（添加粒
状Ｎａ１ＣＯＨの溶解速度、拡散速度も関係する）。If from outside, 0. The thickness of the PC layer gradually increases due to the reaction with Na1COH, and as a result, hollow granular PC is produced, but the concentration of Na, co, (the dissolution rate and diffusion rate of the added granular Na1COH also plays a role). do).
Ｈ，０，の濃度９反応温度、ヘキサメタリン酸塩（以下
Ｈ−Ｍ−Ｐと略称する。）の濃度、添加粒状Ｎａ２ＣＯ
１の粒度等の間に絶妙なバランスが必要である。これら
の要因はＮａ、ＣＯ３表面に形成されるＰＣ層の厚さ、
空隙の程度を左右し、内部のＮｇ１．ＣＯＩの溶解速度
を著しく変化させることになり２反応初期に緻密な層が
形成されれば、内部に覆われたＮａ、ＣＱの溶出は完全
に停止してしまう。例えばＮａ、ＣＯＩとＨ，Ｏ，との
濃度のバランスがＨ，０，方向にずれ。Concentration of H,0,9 reaction temperature, concentration of hexametaphosphate (hereinafter abbreviated as H-M-P), added granular Na2CO
An exquisite balance is required between particle size, etc. These factors include the thickness of the PC layer formed on the Na and CO3 surfaces;
The internal Ng1. If the dissolution rate of COI changes significantly and a dense layer is formed at the beginning of the second reaction, the elution of Na and CQ covered inside will be completely stopped. For example, the concentration balance between Na, COI and H, O shifts toward H, 0.
Ｈ，０，が過剰に存在する系では、このような現象が起
こり反応禁止状態になる。又２本発明に於いて、 Ｈ，
Ｍ、 Ｐの添加は特に重要で、これはＰＣ層の結晶を緻
密にする効果があると共に、Ｎａ、ＣＯ３の拡散速度、
Ｈ，０，の内部への浸入速度をコントロールしＰＣ殻の
生成を容易にし、且つ生成する条件の範囲を広くするこ
とが出来、又、生成する殻本強関があり９表面も滑らか
で製品粒子の流動性を良くシ、又、輸送中に破壊される
ことも無くするという多くの重要な効果があるが、Ｈ，
Ｍ、Ｐを多量に添加した場合には、ＰＣ層の緻密性が著
しく増すため内部からのＮａ、ＣＯＢの溶出が韻書され
てしまうことがある。又、Ｎａ、ＣＯＩとＨ，Ｏ，の濃
度バランスがＮａ１ＣＯ１濃度が高くなる方向に偏った
場合２例えば２反応温度の上昇はＮａ、ＣＯ，の溶解度
を増し、又、原料Ｎａ、ＣＯ，の小さな粒子は速やかに
溶解するため反応系のＮａ、Ｃｏｇ濃度を増す原因とな
り、Ｈ，Ｍ、Ｐの濃度が低い場合は細粒化してしまう。In a system in which H,0, exists in excess, such a phenomenon occurs and the reaction is inhibited. In addition, in the present invention, H,
The addition of M and P is particularly important, as it has the effect of making the crystals of the PC layer denser, and also increases the diffusion rate of Na and CO3.
It is possible to control the rate of infiltration of H,0, into the interior of the PC shell, make it easier to generate a PC shell, and widen the range of conditions under which it can be generated.Also, there is a strong tendency for the shell to form, and the surface of the product is smooth. Although H,
When large amounts of M and P are added, the density of the PC layer increases significantly, which may result in elution of Na and COB from the inside. In addition, if the concentration balance of Na, COI and H, O, is biased in the direction where the Na1CO1 concentration becomes high,2 for example, an increase in the reaction temperature will increase the solubility of Na, CO, and the small concentration of raw materials Na, CO, Since the particles dissolve quickly, they cause an increase in the concentration of Na and Cog in the reaction system, and when the concentrations of H, M, and P are low, the particles become fine.
Ｈ，Ｍ、Ｐの母液濃度は、 ２．０ ｔ／を以上の範囲
で調整し、か１添加するＨ、Ｍ、Ｐは、添加される粒状
Ｎａ１Ｃ０１重量に対しｔｏ／１００以下の範囲で調整
して添加する。Ｈ，Ｍ、Ｐとポリアクリル酸ナトリウム
を併用することも可能であり２本発明を有利に実施出来
る。The mother liquor concentration of H, M, and P is adjusted within a range of 2.0 t/or more, and the H, M, and P added are adjusted within a range of to/100 or less based on the weight of granular Na1C01 added. and add. It is also possible to use H, M, P and sodium polyacrylate in combination, and the present invention can be carried out advantageously.
維持すべき母液組成は、ＮａＣｔ濃度に関し、８０〜２
９０ ？／ｌ ＋ Ｎａ、ＣＯ３濃度に関し２０〜１２
０ｆ／ｌ 、 Ｈ，Ｏ，濃度に関し６〜５０ ｔ／ｌで
あり、かつＮａ、ＣＯ３に対するＨｌｏ、そル比は１．
８以下に調整する。The mother liquor composition to be maintained is between 80 and 2 in terms of NaCt concentration.
90? /l + 20 to 12 for Na, CO3 concentration
0f/l, H, O, concentration is 6 to 50 t/l, and the Hlo to Na, CO3 ratio is 1.
Adjust to 8 or less.
中空粗大なＰＣを得るのに重要なことは２反応に用いる
原料Ｎａ、ＣＯＢの粒度である。中空ＰＣの生成機構か
らも分るように、Ｎａ、ＣＯＩ粒子自身がＰＣ粒子形成
の核となり、生成する２０粒子の大きさを決定する一つ
の大きな要因となるからである。即ち、原料Ｎａ、ＣＯ
Ｂの平均粒子径は５０〜１０００μである。What is important in obtaining hollow and coarse PC is the particle size of the raw materials Na and COB used in the two reactions. This is because, as can be seen from the formation mechanism of hollow PC, the Na and COI particles themselves serve as the nucleus for the formation of PC particles, and are one of the major factors that determine the size of the generated 20 particles. That is, raw materials Na, CO
The average particle diameter of B is 50 to 1000μ.
本発明に於いて塩化ナトリウムは、塩析効果によりＰＣ
の収率向上の効果および製品の危険性防止効果の他に、
Ｎｇ、ＣＯ，の溶解速度やＰＣ析出速度の調節に大き
な効果がある。In the present invention, sodium chloride has a salting-out effect that improves PC
In addition to the effect of improving yield and preventing product hazards,
It has a great effect on adjusting the dissolution rate of Ng, CO, and PC precipitation rate.
本発明方法に於いて、ＰＣの安定剤としてケイ酸ナトリ
ウム等のケイ酸化合物および硫酸マグネシウム等のマグ
ネシウム化合物を添加して製造されたＰＣは、その安定
性が著しく向上する。ケイ酸化合物およびマグネシウム
化合物の添加量は。In the method of the present invention, the stability of PC produced by adding a silicate compound such as sodium silicate and a magnesium compound such as magnesium sulfate as a PC stabilizer is significantly improved. What is the amount of silicic acid compound and magnesium compound added?
そわ、ぞれの添加比率が添加されるＮａ、ＣＯ３重量に
対し、Ｓｉｎ、として０．０５／１ｏｏ〜１．０／１ｏ
ｏ１Ｍｇとしてｏ、２／１００以ドであり、又、ケイ酸
化合物＋Ｍｇ化合物にＥＤＴＡ、’）ン酸塩等の公知の
安定剤を併用して使用することも可能である。The addition ratio of each is 0.05/1oo to 1.0/1o as Sin to the weight of Na and CO3 added.
o1Mg is 2/100 or more, and it is also possible to use the silicate compound + Mg compound in combination with a known stabilizer such as EDTA or phosphate.
本発明を実施すれば、水溶性、安定性および流動性の改
善された中空粒状なＰＣを有利に製造することが可能で
あり２本発明は産業上、極めて有利な製造法となる。By carrying out the present invention, it is possible to advantageously produce hollow granular PC with improved water solubility, stability and fluidity, and the present invention is an extremely advantageous production method industrially.
以下に本発明を実施例で詳しく説明する。The present invention will be explained in detail below using examples.
実施例１
塩化ナトリウム濃度２７９ｆ／ｌ、炭酸ナトリウム濃度
５０ ｆ／ｌ 、過酸化水素濃度６ ｆ／ｌの組成を有
する母液ＸＯｔに攪拌を行いつつ、８４０ｐ以下９９．
７％、３００μ以下２５．８％の粒度を持つ粒状炭酸ナ
トリウムを２．００４＋／毎時、濃度７５０ｙ７ｔの過
酸化水素を１．３２ｔ／毎時の速度で供給すると同時に
濃度０．１Ｆ／−のへキサメタリン酸ナトリウム水溶液
を６８−／毎時、濃度０ 、５ ｆ／ｍｌの硫酸マグネ
シウム水溶液１８−／毎時、濃度０，５ｆ／−の３号ケ
イ酸ナトリウへａｏ−、’毎時の速度で連続的に添加し
２反応中６″液温な２２℃に維持した。Example 1 While stirring a mother liquor XOt having a composition of sodium chloride concentration of 279 f/l, sodium carbonate concentration of 50 f/l, and hydrogen peroxide concentration of 6 f/l, a concentration of 99.
Granular sodium carbonate with a particle size of 7%, 300 μ or less and 25.8% is supplied at a rate of 2.004+/hour and hydrogen peroxide with a concentration of 750y7t is supplied at a rate of 1.32t/hour, and at the same time hexamethalin with a concentration of 0.1F/- is supplied. An aqueous sodium sulfate solution with a concentration of 0.5 f/ml is added continuously at a rate of 68/hour, an aqueous solution of magnesium sulfate with a concentration of 0.5 f/ml to No. 3 sodium silicate with a concentration of 18/hour, ao. During the second reaction, the liquid temperature was maintained at 22°C.
反応１時間後にすべての供給を停止し、１０分間攪拌を
行った後、スラリーを抜出し、遠心分離機で固液分離し
た。濾液は炭酸ナトリウムについて４４．２ｔ／ｌ、過
酸化水素について１６．４ｆ／ｌの濃度を有していた。After 1 hour of reaction, all supplies were stopped, and after stirring for 10 minutes, the slurry was taken out and separated into solid and liquid using a centrifuge. The filtrate had a concentration of 44.2 t/l for sodium carbonate and 16.4 f/l for hydrogen peroxide.
生成した粒子はそのおおよそが中空状であり、有効酸素
１４．０％を含有していた。The particles produced were generally hollow and contained 14.0% available oxygen.
比較例１ 初母液組成を塩化ナトリウム濃度２８０ ｆ／ｌ。Comparative example 1 The initial mother liquor composition had a sodium chloride concentration of 280 f/l.
炭酸ナトリウム濃度１８ ｆ／ｌ 、過酸化水素濃度６
ｆ／ｌとした以外は実施例１と同一＝−条件下で反応を
行った。反応終了後の母液は炭酸ナトリウム２１．３ｔ
７ｔ 、過酸化水素４６．１ｆ／Ｌの濃度を有し、得ら
れた粒子は有効酸素９２％であり２粒子の内部には未反
応の炭酸ナトリウムがまわりを炭酸ナトリウム過酸化水
素付加物で覆われた形で存在していた。Sodium carbonate concentration 18 f/l, hydrogen peroxide concentration 6
The reaction was carried out under the same conditions as in Example 1 except that f/l was used. After the reaction, the mother liquor contains 21.3 tons of sodium carbonate.
7t, hydrogen peroxide concentration of 46.1 f/L, the obtained particles have 92% effective oxygen, and the inside of the two particles contains unreacted sodium carbonate surrounded by sodium carbonate hydrogen peroxide adduct. It existed in a hidden form.
実施例２
塩化ナトリウム濃度２６０ ｆ／ｌ 、炭酸ナトリウム
濃度５０ ｆ／ｌ 、−酸化水素濃度６ ｆ／ｌの組成
を有する初母液１０ｔを用い、基本的には実施例１と同
一供給速度で添加物を供給したが、炭酸ナトリウムと過
酸化水素については母液中の炭酸ナトリウム濃度が４０
〜５５ ｆ／ｌ 、過酸化水素濃度が１３〜２０ ｆ／
ｌを維持するように途中断続的に調節し、さらに塩化ナ
トリウム濃度が２６０〜２７０ｙ７ｔを保つように塩化
ナトリウムを供給して連続的な反応を行った。反応中は
スラリー濃度が２５０ｆ／ｌとなるようにスラリーを抜
出し、遠心分離後の濾液は反応容器内に循環させた。反
応温度は２３°Ｃとした。Example 2 Using 10 t of initial mother liquor having a composition of sodium chloride concentration of 260 f/l, sodium carbonate concentration of 50 f/l, and hydrogen oxide concentration of 6 f/l, addition was basically made at the same feed rate as in Example 1. However, for sodium carbonate and hydrogen peroxide, the sodium carbonate concentration in the mother liquor was 40%.
~55 f/l, hydrogen peroxide concentration 13-20 f/l
The reaction was carried out intermittently during the reaction so as to maintain the concentration of sodium chloride at 260 to 270 y7t, and sodium chloride was supplied so as to maintain the sodium chloride concentration at 260 to 270 y7t. During the reaction, the slurry was extracted so that the slurry concentration was 250 f/l, and the filtrate after centrifugation was circulated in the reaction vessel. The reaction temperature was 23°C.
原料炭酸ナトリウムの粒度は８４０μ以下９９．６％、
３００μ以下３４．３％のものを用いた。生成した粒子
はその多くが中空状の粒子であり、有効酸素含有量は１
３．９〜１４．２％であった。The particle size of the raw material sodium carbonate is 840 μ or less, 99.6%,
A material with a particle size of 34.3% of 300μ or less was used. Most of the generated particles are hollow particles, and the effective oxygen content is 1.
It was 3.9-14.2%.
日本パーオキサイド株式会社 １Nippon Peroxide Co., Ltd. 1
Claims (1)
ムを含有する溶液に粒状炭酸ナトリウム、過酸化水素お
よびヘキサメタリン酸塩を添加することを特徴とする中
空粒状な炭酸ナトリウム過酸化水素付加物の製造法。 ２、添加する粒状炭酸ナトリウムの平均粒子径が５０〜
１０００μである特許請求の範囲第１項記載の製造法。 ３、維持すべき母液組成が塩化す）＋７ウム濃度に関し
８０〜２９０ ｔ／ｌ 、炭酸ナトリウム濃度に関し２
０〜ｘ２０ｆ／１．、過酸化水素濃度に関し６〜ｓ ｏ
ｔ７ｔ 、ヘキサメタリン酸塩濃度に関し２．０ ｆ
／を以下であり、かつ炭酸ナトリウムに対する過酸化水
素モル比が１．８以下である特許請求の範囲第１項記載
の製造法。 ４、 安定剤としてケイ酸化合物および、−２グネシウ
ム化合物をそれぞれの添加比率が添加される炭酸ナトリ
ウム重量に対し、 Ｓｉｎ、として０．０５／１００
〜ｔ、ｏ ７１ｏｏおよびＭｇとして０〜０雪。 添加する特許請求の範囲第１項記載の製造法。 ５、 添加するヘキサメタリン酸塩が添加される炭酸ナ
トリウム重量に対し１・ｏ／１００以下である特許請求
の範囲第１項記載の製造法。[Claims] 1. Hollow granular sodium carbonate hydrogen peroxide addition characterized by adding granular sodium carbonate, hydrogen peroxide and hexametaphosphate to a solution containing sodium carbonate, hydrogen peroxide and sodium chloride. How things are manufactured. 2. The average particle diameter of the granular sodium carbonate to be added is 50~
1000μ manufacturing method according to claim 1. 3. The mother liquor composition to be maintained is 80 to 290 t/l for the chloride +7 um concentration, and 2 for the sodium carbonate concentration.
0~x20f/1. , 6 to s o for hydrogen peroxide concentration
t7t, 2.0 f for hexametaphosphate concentration
The manufacturing method according to claim 1, wherein / is the following, and the molar ratio of hydrogen peroxide to sodium carbonate is 1.8 or less. 4. Addition ratio of silicate compound and -2gnesium compound as stabilizers is 0.05/100 as Sin, relative to the weight of sodium carbonate to be added.
~t, o 71oo and 0-0 snow as Mg. A manufacturing method according to claim 1. 5. The manufacturing method according to claim 1, wherein the amount of hexametaphosphate to be added is 1·o/100 or less based on the weight of sodium carbonate to be added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8140082A JPS58199704A (en) | 1982-05-17 | 1982-05-17 | Manufacture of adduct of sodium carbonate to hydrogen peroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8140082A JPS58199704A (en) | 1982-05-17 | 1982-05-17 | Manufacture of adduct of sodium carbonate to hydrogen peroxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58199704A true JPS58199704A (en) | 1983-11-21 |
| JPS6251882B2 JPS6251882B2 (en) | 1987-11-02 |
Family
ID=13745258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8140082A Granted JPS58199704A (en) | 1982-05-17 | 1982-05-17 | Manufacture of adduct of sodium carbonate to hydrogen peroxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58199704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8741255B2 (en) | 2007-07-27 | 2014-06-03 | Exxonmobil Chemical Patents Inc. | Oxidation process |
-
1982
- 1982-05-17 JP JP8140082A patent/JPS58199704A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8741255B2 (en) | 2007-07-27 | 2014-06-03 | Exxonmobil Chemical Patents Inc. | Oxidation process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6251882B2 (en) | 1987-11-02 |
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