GB225199A - A process for the production of chemically pure aluminium compounds - Google Patents
A process for the production of chemically pure aluminium compoundsInfo
- Publication number
- GB225199A GB225199A GB26012/24A GB2601224A GB225199A GB 225199 A GB225199 A GB 225199A GB 26012/24 A GB26012/24 A GB 26012/24A GB 2601224 A GB2601224 A GB 2601224A GB 225199 A GB225199 A GB 225199A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrochloric acid
- sulphuric acid
- aluminium
- aluminium chloride
- sulphuric
- 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
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
- C01F7/56—Chlorides
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
Crude aluminium sulphate, obtained for instance by treating an ore such as bauxite with sulphuric acid, is saturated with hydrochloric acid gas, so that crystals of aluminium chloride separate. The mother liquor containing hydrochloric and sulphuric acids is concentrated with the addition of previously concentrated sulphuric acid, until the hydrochloric acid gas is expelled. The sulphuric acid remaining is cooled to separate ferric sulphate and then used again to act upon more raw material. The Specification as open to inspection under Sect. 91 (3) (a) mentions clays, ampelites or the like as raw materials and states that the aluminium chloride crystals are washed with hydrochloric acid, dissolved in water and precipitated with hydrochloric acid gas, these operations being repeated as often as necessary to obtain a product free from iron. The aluminium chloride may be treated with sulphuric acid or calcined at 300 DEG C. so as to obtain pure aluminium sulphate or alumina, while the hydrochloric acid evolved in the various operations is used for the precipitation of aluminium chloride or the decomposition of aluminium sulphate, or is absorbed in a saturator. The wash liquors are treated with the mother liquors to recover the hydrochloric acid with or without the addition of sulphuric acid. This subject-matter does not appear in the Specification as accepted.ALSO:Crude aluminium sulphate solution, obtained for instance from an ore such as bauxite and sulphuric acid, is saturated with hydrochloric acid gas, so that crystals of aluminium chloride separate. The mother liquor containing hydrochloric and sulphuric acids is concentrated with the addition of previously concentrated sulphuric acid, until the hydrochloric acid gas is expelled. The sulphuric acid remaining is cooled to separate ferric sulphate and then used again to act upon more raw material. The Specification as open to inspection under Sect. 91 (3) (a) mentions clays and ampelites as raw materials, and states that the aluminium chloride crystals are washed with hydrochloric acid, dissolved in water, and precipitated with hydrochloric acid, these operations being repeated as often as necessary to obtain a product free from iron. The aluminium chloride may be treated with sulphuric acid or calcined at 300 DEG C. to obtain pure aluminium sulphate or alumina, while the hydrochloric acid evolved in the various operations is used to precipitate aluminium chloride or to decompose aluminium sulphate or is absorbed in a saturator. The wash-liquors are treated with the mother-liquors to recover the hydrochloric acid, with or without the addition of sulphuric acid. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE225199X | 1923-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB225199A true GB225199A (en) | 1925-10-15 |
Family
ID=3866168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26012/24A Expired GB225199A (en) | 1923-11-21 | 1924-10-31 | A process for the production of chemically pure aluminium compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB225199A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3620671A (en) * | 1967-10-25 | 1971-11-16 | Pechiney | Process for the acid treatment of aluminous ores for the recovery of alumina |
| CN112934919A (en) * | 2021-02-05 | 2021-06-11 | 云南大地丰源环保有限公司 | Method for treating waste anhydrous aluminum chloride |
-
1924
- 1924-10-31 GB GB26012/24A patent/GB225199A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3620671A (en) * | 1967-10-25 | 1971-11-16 | Pechiney | Process for the acid treatment of aluminous ores for the recovery of alumina |
| CN112934919A (en) * | 2021-02-05 | 2021-06-11 | 云南大地丰源环保有限公司 | Method for treating waste anhydrous aluminum chloride |
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