GB400984A - Improvements in or relating to a method of producing sodium aluminate solutions - Google Patents
Improvements in or relating to a method of producing sodium aluminate solutionsInfo
- Publication number
- GB400984A GB400984A GB12879/32A GB1287932A GB400984A GB 400984 A GB400984 A GB 400984A GB 12879/32 A GB12879/32 A GB 12879/32A GB 1287932 A GB1287932 A GB 1287932A GB 400984 A GB400984 A GB 400984A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium aluminate
- hydrates
- relating
- silica
- aluminate solutions
- 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
- C01F7/0633—Digestion characterised by the use of additives
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nutrition Science (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 production of sodium aluminate solutions from oxides or hydrates of aluminium containing silica by extraction with preferably concentrated caustic soda, solutions free from silica are obtained by adding the requisite amount of the dry slaked hydrates of barium, strontium, or calcium, or the oxides or hydrates of magnesium or zinc prior to or during extraction, the amount of caustic soda needed being correspondingly less. The silica is precipitated principally as a calcium silicate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12879/32A GB400984A (en) | 1932-05-04 | 1932-05-04 | Improvements in or relating to a method of producing sodium aluminate solutions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12879/32A GB400984A (en) | 1932-05-04 | 1932-05-04 | Improvements in or relating to a method of producing sodium aluminate solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB400984A true GB400984A (en) | 1933-11-06 |
Family
ID=10012809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12879/32A Expired GB400984A (en) | 1932-05-04 | 1932-05-04 | Improvements in or relating to a method of producing sodium aluminate solutions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB400984A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2805167A (en) * | 1954-05-18 | 1957-09-03 | Harbison Walker Refractories | Synthetic spinel refractory products |
US2926069A (en) * | 1956-06-27 | 1960-02-23 | Diamond Alkali Co | Alkali metal aluminates |
US3966874A (en) * | 1975-05-14 | 1976-06-29 | Reynolds Metals Company | Extraction of alumina from bauxite ores |
US4046855A (en) * | 1975-04-25 | 1977-09-06 | Gebruder Giulini Gmbh | Method for removing harmful organic compounds from aluminate liquors of the Bayer process |
US4101629A (en) * | 1975-10-21 | 1978-07-18 | Aluminium Pechiney | Purification of solutions circulating in the bayer cycle |
US4915930A (en) * | 1986-07-31 | 1990-04-10 | Aluminum Company Of America | Process for producing aluminum hydroxide of improved whiteness |
CN111871360A (en) * | 2020-07-15 | 2020-11-03 | 杭州科创有色金属研究有限公司 | Method and device for preparing filter aid in alumina production |
-
1932
- 1932-05-04 GB GB12879/32A patent/GB400984A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2805167A (en) * | 1954-05-18 | 1957-09-03 | Harbison Walker Refractories | Synthetic spinel refractory products |
US2926069A (en) * | 1956-06-27 | 1960-02-23 | Diamond Alkali Co | Alkali metal aluminates |
US4046855A (en) * | 1975-04-25 | 1977-09-06 | Gebruder Giulini Gmbh | Method for removing harmful organic compounds from aluminate liquors of the Bayer process |
US3966874A (en) * | 1975-05-14 | 1976-06-29 | Reynolds Metals Company | Extraction of alumina from bauxite ores |
US4101629A (en) * | 1975-10-21 | 1978-07-18 | Aluminium Pechiney | Purification of solutions circulating in the bayer cycle |
US4915930A (en) * | 1986-07-31 | 1990-04-10 | Aluminum Company Of America | Process for producing aluminum hydroxide of improved whiteness |
CN111871360A (en) * | 2020-07-15 | 2020-11-03 | 杭州科创有色金属研究有限公司 | Method and device for preparing filter aid in alumina production |
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