GB425908A - Improvements in and relating to the production of aluminium fluoride and the double fluorides of aluminium and ammonium - Google Patents
Improvements in and relating to the production of aluminium fluoride and the double fluorides of aluminium and ammoniumInfo
- Publication number
- GB425908A GB425908A GB26021/33A GB2602133A GB425908A GB 425908 A GB425908 A GB 425908A GB 26021/33 A GB26021/33 A GB 26021/33A GB 2602133 A GB2602133 A GB 2602133A GB 425908 A GB425908 A GB 425908A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluoride
- aluminium
- ammonium
- hydrofluoric acid
- acid
- 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
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 title abstract 6
- 239000004411 aluminium Substances 0.000 title abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052782 aluminium Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 title 1
- 150000002222 fluorine compounds Chemical class 0.000 title 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 10
- KVBCYCWRDBDGBG-UHFFFAOYSA-N azane;dihydrofluoride Chemical compound [NH4+].F.[F-] KVBCYCWRDBDGBG-UHFFFAOYSA-N 0.000 abstract 5
- XFBXDGLHUSUNMG-UHFFFAOYSA-N alumane;hydrate Chemical compound O.[AlH3] XFBXDGLHUSUNMG-UHFFFAOYSA-N 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- -1 aluminium ammonium fluoride Chemical compound 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 150000003868 ammonium compounds Chemical class 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 150000004673 fluoride salts Chemical class 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000011973 solid acid Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/78—Compounds containing aluminium, with or without oxygen or hydrogen, and containing two or more other elements
- C01F7/788—Ammonium aluminium fluorides, e.g. ammonium hexafluoroaluminate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
In the production of aluminium fluoride, solid aluminium hydrate is intimately mixed with such an amount of a solid acid fluoride salt of ammonia that it contains at least six and preferably twelve atoms of fluorine for each molecule of alumina used, and the mixture heated at 100--200 DEG C., until a double aluminium ammonium fluoride is formed, after which the temperature is gradually raised to 500--600 DEG C., to decompose the double salt and yield anhydrous aluminium fluoride. If desired, the second heating step may be omitted and the double fluoride recovered as such. The initial materials may contain free or hygroscopic moisture. Vapours evolved in the second heating step are collected and reformed into ammonium acid fluoride for re-use by combination with hydrofluoric acid; for instance they may be first passed through aluminium hydrate to remove ammonium acid fluoride and then into aqueous hydrofluoric acid. The ammonium acid fluoride may be prepared in situ as by using normal ammonium fluoride in the initial mixture, or by mixing aluminium hydrate with an ammonium compound such as the carbonate, and heating the mixture in the presence of hydrofluoric acid gas. The process may be carried out continuously in an externally heated rotating tube having a temperature gradient of 150--600 DEG C., which contains initially a charge of ammonium acid fluoride. Hydrate of alumina is fed into the cool end of the tube and hydrofluoric acid at the hot end. In the furnace the double salt is first formed and then decomposed at higher temperatures, and the vapours evolved react with the hydrofluoric acid to form ammonium acid fluoride which condenses at the cool end of the tube and reacts with further supplies of aluminium hydrate. The process may be carried out in aluminium vessels, or in the case of the continuous process, also in vessels constructed of iron or steel.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26021/33A GB425908A (en) | 1933-09-20 | 1933-09-20 | Improvements in and relating to the production of aluminium fluoride and the double fluorides of aluminium and ammonium |
| DEB166466D DE641230C (en) | 1933-09-20 | 1934-08-10 | Production of aluminum fluoride by thermal decomposition of aluminum double fluorides |
| FR777423D FR777423A (en) | 1933-09-20 | 1934-08-17 | Improvements in the manufacture of aluminum fluoride and double aluminum ammonium fluorides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26021/33A GB425908A (en) | 1933-09-20 | 1933-09-20 | Improvements in and relating to the production of aluminium fluoride and the double fluorides of aluminium and ammonium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB425908A true GB425908A (en) | 1935-03-20 |
Family
ID=10237109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26021/33A Expired GB425908A (en) | 1933-09-20 | 1933-09-20 | Improvements in and relating to the production of aluminium fluoride and the double fluorides of aluminium and ammonium |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE641230C (en) |
| FR (1) | FR777423A (en) |
| GB (1) | GB425908A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3501268A (en) * | 1967-05-18 | 1970-03-17 | Ethyl Corp | Process for the production of anhydrous hydrogen fluoride |
| US3506395A (en) * | 1968-01-03 | 1970-04-14 | Onoda Cement Co Ltd | Process of preparing high quality artificial cryolite |
| CN110639463A (en) * | 2019-09-29 | 2020-01-03 | 河南省睿博环境工程技术有限公司 | Intensive fluorination reactor for producing dry-process aluminum fluoride |
-
1933
- 1933-09-20 GB GB26021/33A patent/GB425908A/en not_active Expired
-
1934
- 1934-08-10 DE DEB166466D patent/DE641230C/en not_active Expired
- 1934-08-17 FR FR777423D patent/FR777423A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3501268A (en) * | 1967-05-18 | 1970-03-17 | Ethyl Corp | Process for the production of anhydrous hydrogen fluoride |
| US3506395A (en) * | 1968-01-03 | 1970-04-14 | Onoda Cement Co Ltd | Process of preparing high quality artificial cryolite |
| CN110639463A (en) * | 2019-09-29 | 2020-01-03 | 河南省睿博环境工程技术有限公司 | Intensive fluorination reactor for producing dry-process aluminum fluoride |
Also Published As
| Publication number | Publication date |
|---|---|
| DE641230C (en) | 1937-01-25 |
| FR777423A (en) | 1935-02-20 |
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