GB757825A - Method of batch treating bauxites with caustic soda solution - Google Patents
Method of batch treating bauxites with caustic soda solutionInfo
- Publication number
- GB757825A GB757825A GB12188/54A GB1218854A GB757825A GB 757825 A GB757825 A GB 757825A GB 12188/54 A GB12188/54 A GB 12188/54A GB 1218854 A GB1218854 A GB 1218854A GB 757825 A GB757825 A GB 757825A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caustic soda
- autoclave
- lye
- soda solution
- bauxites
- 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
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F7/062—Digestion
Abstract
<PICT:0757825/III/1> A batch of dry bauxite in an autoclave is treated by the introduction of caustic soda solution previously superheated to a temperature sufficient to supply all the heat necessary for the complete extraction of the alumina. Thus caustic soda is preheated in vessel 1, by steam through coils 3, and is transferred by conduit 6 to decomposition autoclave 7 containing dry bauxite introduced through supply pipe 8. The decomposition lye formed in the autoclave may be further treated, as in Specification 757,826, by forcing this lye, without any reduction of pressure in the autoclave, through pipe 9 into diluter 10, where it is mixed with stirred-out lyes from previous treatments or caustic soda washing lyes. The mixed lye is then passed through conduit 13 for further treatment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE757825X | 1953-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB757825A true GB757825A (en) | 1956-09-26 |
Family
ID=6660119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12188/54A Expired GB757825A (en) | 1953-06-01 | 1954-04-27 | Method of batch treating bauxites with caustic soda solution |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1106750A (en) |
| GB (1) | GB757825A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545384A (en) * | 1991-10-30 | 1996-08-13 | Sumitomo Chemical Co., Ltd. | Process for production of aluminum hydroxide from ore containing alumina |
| EP0564659B1 (en) * | 1991-10-30 | 1999-04-07 | Sumitomo Chemical Company Limited | Process for producing aluminum hydroxide from alumina-containing ore |
-
1954
- 1954-04-27 GB GB12188/54A patent/GB757825A/en not_active Expired
- 1954-06-01 FR FR1106750D patent/FR1106750A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1106750A (en) | 1955-12-22 |
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