GB627678A - Improvements in or relating to heat producing mixtures containing aluminium and an oxidising agent - Google Patents
Improvements in or relating to heat producing mixtures containing aluminium and an oxidising agentInfo
- Publication number
- GB627678A GB627678A GB23028/47A GB2302847A GB627678A GB 627678 A GB627678 A GB 627678A GB 23028/47 A GB23028/47 A GB 23028/47A GB 2302847 A GB2302847 A GB 2302847A GB 627678 A GB627678 A GB 627678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- mixture
- fluoride
- relating
- sodium
- 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.)
- Expired
Links
- 239000004411 aluminium Substances 0.000 title abstract 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 6
- 229910052782 aluminium Inorganic materials 0.000 title abstract 6
- 239000000203 mixture Substances 0.000 title abstract 6
- 239000007800 oxidant agent Substances 0.000 title abstract 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 abstract 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 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 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910001610 cryolite Inorganic materials 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- 235000013980 iron oxide Nutrition 0.000 abstract 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 235000013024 sodium fluoride Nutrition 0.000 abstract 1
- 239000011775 sodium fluoride Substances 0.000 abstract 1
- 235000010344 sodium nitrate Nutrition 0.000 abstract 1
- 239000004317 sodium nitrate Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/06—Dry methods smelting of sulfides or formation of mattes by carbides or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
- B22D27/06—Heating the top discard of ingots
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A heat-producing agent comprises a mixture of aluminium and an amount of oxidizing agent below the amount needed to oxidize the aluminium completely and 1.5 per cent by weight of a fluoride to facilitate the burning of the aluminium and the lowering of the temperature at which the reaction starts. The fluoride may be sodium fluoride or sodium or potassium cryolite or a mixture of these. The mixture may be incorporated in a shaped body such as that described in Specification 606,119, [Group V], and may be bonded with gum and contain bentonite and granulated grog. The oxidizing agent may be sodium nitrate, manganese dioxide or iron oxides or a mixture of these. The aluminium may be in the form of sawings and preferably should pass through a 20-mesh sieve. Examples are given of mixtures suitable for use with steel, copper and aluminium castings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23028/47A GB627678A (en) | 1947-08-19 | 1947-08-19 | Improvements in or relating to heat producing mixtures containing aluminium and an oxidising agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23028/47A GB627678A (en) | 1947-08-19 | 1947-08-19 | Improvements in or relating to heat producing mixtures containing aluminium and an oxidising agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB627678A true GB627678A (en) | 1949-08-12 |
Family
ID=10188950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23028/47A Expired GB627678A (en) | 1947-08-19 | 1947-08-19 | Improvements in or relating to heat producing mixtures containing aluminium and an oxidising agent |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB627678A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2778723A (en) * | 1953-01-30 | 1957-01-22 | Toshio Yoshida | Method for eliminating the explosive reaction in a thermit process |
| US3144690A (en) * | 1961-07-17 | 1964-08-18 | Foseco Int | Exothermically reacting shaped products for use in foundry practice |
| DE1271007B (en) * | 1962-04-16 | 1968-06-20 | Metalurgitschen Zd Lenin | Process for protecting carbon materials from oxidation |
| US3470276A (en) * | 1965-02-20 | 1969-09-30 | Sekisui Suponji Kogyo Kk | Method of manufacturing porous riser insulating sleeve |
| US4767800A (en) * | 1986-05-01 | 1988-08-30 | Foseco International Limited | Exothermic compositions |
| US5180759A (en) * | 1986-05-01 | 1993-01-19 | Foseco International Limited | Exothermic compositions |
| US5632326A (en) * | 1993-04-22 | 1997-05-27 | Foseco International Limited | Mould and a method for the casting of metals and refractory compositions for use therein |
| EP0993889A1 (en) * | 1998-10-09 | 2000-04-19 | Masamitsu Miki | Foundry exothermic assembly |
| EP1273369A2 (en) | 1996-07-18 | 2003-01-08 | Kemen Recupac, S.A. | Procedure for the production of sleeves and other feeder head and supply elements for casting molds, and composition for preparing said sleeves and elements |
-
1947
- 1947-08-19 GB GB23028/47A patent/GB627678A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2778723A (en) * | 1953-01-30 | 1957-01-22 | Toshio Yoshida | Method for eliminating the explosive reaction in a thermit process |
| US3144690A (en) * | 1961-07-17 | 1964-08-18 | Foseco Int | Exothermically reacting shaped products for use in foundry practice |
| DE1271007B (en) * | 1962-04-16 | 1968-06-20 | Metalurgitschen Zd Lenin | Process for protecting carbon materials from oxidation |
| US3470276A (en) * | 1965-02-20 | 1969-09-30 | Sekisui Suponji Kogyo Kk | Method of manufacturing porous riser insulating sleeve |
| US4767800A (en) * | 1986-05-01 | 1988-08-30 | Foseco International Limited | Exothermic compositions |
| US5180759A (en) * | 1986-05-01 | 1993-01-19 | Foseco International Limited | Exothermic compositions |
| US5632326A (en) * | 1993-04-22 | 1997-05-27 | Foseco International Limited | Mould and a method for the casting of metals and refractory compositions for use therein |
| EP1273369A2 (en) | 1996-07-18 | 2003-01-08 | Kemen Recupac, S.A. | Procedure for the production of sleeves and other feeder head and supply elements for casting molds, and composition for preparing said sleeves and elements |
| EP0993889A1 (en) * | 1998-10-09 | 2000-04-19 | Masamitsu Miki | Foundry exothermic assembly |
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