GB457676A - A process for the production of a calcium aluminate suitable for the manufacture of sodium aluminate by treatment with soda lye - Google Patents
A process for the production of a calcium aluminate suitable for the manufacture of sodium aluminate by treatment with soda lyeInfo
- Publication number
- GB457676A GB457676A GB23414/35A GB2341435A GB457676A GB 457676 A GB457676 A GB 457676A GB 23414/35 A GB23414/35 A GB 23414/35A GB 2341435 A GB2341435 A GB 2341435A GB 457676 A GB457676 A GB 457676A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sio2
- amount
- per cent
- 2cao
- al2o3
- 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
- C01F7/16—Preparation of alkaline-earth metal aluminates or magnesium aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/164—Calcium aluminates
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 calcium aluminate by heating an aluminiferous material such as bauxite with a calcium compound such as lime, at least sufficient calcium compound is used to form with the Al2O3, SiO2, Fe2O3, an TiO2 present the compounds CaO.Al2O3, 2CaO,SiO2, 2CaO.Fe2O3 and CaOTiO2. The ratio of the amount of calcium compound to the amount of silicic acid present is preferably increased with increasing content of silicic acid, so that whereas with a material containing 1 per cent SiO2, the amount of lime necessary to yield the compounds CaO.Al2O3, 2CaO.SiO2 is used, the amount for materials having approximately 10 per cent SiO2 is about 50 per cent higher, and the amount for materials containing 50 per cent SiO2 is about four times as high. In carrying out the process, the finely ground initial materials may be formed into briquets with the addition of carbon, and the latter be heated to the temperature of reaction in a shaft furnace. The pulverized product may be treated with soda lye to obtain sodium aluminate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO457676X | 1934-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB457676A true GB457676A (en) | 1936-12-03 |
Family
ID=19905711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23414/35A Expired GB457676A (en) | 1934-08-30 | 1935-08-20 | A process for the production of a calcium aluminate suitable for the manufacture of sodium aluminate by treatment with soda lye |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR794218A (en) |
| GB (1) | GB457676A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502743A (en) * | 2011-10-17 | 2012-06-20 | 江门市慧信净水材料有限公司 | Method for jointly producing calcium aluminate powder and aluminum chloride from bauxite |
| CN102730729A (en) * | 2012-07-04 | 2012-10-17 | 江西理工大学 | Calcium aluminate slag containing sodium oxide and titanium oxide |
-
1935
- 1935-08-20 GB GB23414/35A patent/GB457676A/en not_active Expired
- 1935-08-27 FR FR794218D patent/FR794218A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502743A (en) * | 2011-10-17 | 2012-06-20 | 江门市慧信净水材料有限公司 | Method for jointly producing calcium aluminate powder and aluminum chloride from bauxite |
| CN102730729A (en) * | 2012-07-04 | 2012-10-17 | 江西理工大学 | Calcium aluminate slag containing sodium oxide and titanium oxide |
| CN102730729B (en) * | 2012-07-04 | 2013-10-23 | 江西理工大学 | Calcium aluminate slag containing sodium oxide and titanium oxide |
Also Published As
| Publication number | Publication date |
|---|---|
| FR794218A (en) | 1936-02-11 |
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