GB448107A - Process for the recovery of aluminium compounds - Google Patents
Process for the recovery of aluminium compoundsInfo
- Publication number
- GB448107A GB448107A GB3383934A GB3383934A GB448107A GB 448107 A GB448107 A GB 448107A GB 3383934 A GB3383934 A GB 3383934A GB 3383934 A GB3383934 A GB 3383934A GB 448107 A GB448107 A GB 448107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrochloric acid
- residue
- recovery
- treated
- aluminium
- 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
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
- C01F7/22—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts with halides or halogen acids
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
In the recovery of aluminium compounds from aluminiferous materials such as waste products from hard coal mines or coal preparing and washing plants, bauxite with high silica content, or kaolin, the material is treated with hydrochloric acid at say 160--225 DEG C., under pressure, the product filtered to remove silica, the filtrate evaporated and heated, say to 200--250 DEG C., to drive off hydrochloric acid which is collected for re-use, the residue boiled with a solution of alkali or ammonium carbonate or phosphate to decompose any remaining chloride, and the insoluble residue treated with caustic alkali to extract the aluminium as aluminate, from which alumina may be obtained by known means. The filtrate from the last mentioned residue, comprising a common salt solution is concentrated, neutralized if necessary with hydrochloric acid, and electrolyzed to obtain hydrogen and chlorine which are combined to give hydrochloric acid for re-use. Raw material for the process may be obtained by burning coal with a high ash content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3383934A GB448107A (en) | 1934-11-24 | 1934-11-24 | Process for the recovery of aluminium compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3383934A GB448107A (en) | 1934-11-24 | 1934-11-24 | Process for the recovery of aluminium compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB448107A true GB448107A (en) | 1936-05-25 |
Family
ID=10358110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3383934A Expired GB448107A (en) | 1934-11-24 | 1934-11-24 | Process for the recovery of aluminium compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB448107A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2527257A (en) * | 1948-09-01 | 1950-10-24 | Edwin G Judd | Process of separating titanium from its ores |
| US4130627A (en) * | 1977-06-20 | 1978-12-19 | Russ James J | Process for recovering mineral values from fly ash |
| US20210371294A1 (en) * | 2020-05-27 | 2021-12-02 | Scandium International Mining Corporation | Process for the preparation of high purity alumina |
-
1934
- 1934-11-24 GB GB3383934A patent/GB448107A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2527257A (en) * | 1948-09-01 | 1950-10-24 | Edwin G Judd | Process of separating titanium from its ores |
| US4130627A (en) * | 1977-06-20 | 1978-12-19 | Russ James J | Process for recovering mineral values from fly ash |
| US20210371294A1 (en) * | 2020-05-27 | 2021-12-02 | Scandium International Mining Corporation | Process for the preparation of high purity alumina |
| US11691888B2 (en) * | 2020-05-27 | 2023-07-04 | Scandium International Mining Corporation | Process for the preparation of high purity alumina |
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