GB392765A - Improved manufacture of alkali carbonate or alkali hydroxide - Google Patents
Improved manufacture of alkali carbonate or alkali hydroxideInfo
- Publication number
- GB392765A GB392765A GB18684/32A GB1868432A GB392765A GB 392765 A GB392765 A GB 392765A GB 18684/32 A GB18684/32 A GB 18684/32A GB 1868432 A GB1868432 A GB 1868432A GB 392765 A GB392765 A GB 392765A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali
- mixture
- steam
- carbon
- alkali carbonate
- 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
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/26—Preparation from or via cyano compounds, e.g. cyanides, cyanamides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
In obtaining alkali carbonates or hydroxides and ammonia by cyanidizing a mixture of alkali carbonate and carbonaceous material with nitrogen at a high temperature and hydrolysing the product, the necessary mixture of alkali carbonate and carbon is obtained by treating a mixture of alkali sulphate and carbon or carbonaceous material with carbon dioxide and steam at an elevated temperature, say 500-800 DEG C. According to a preferred modification, the mixture of alkali sulphate and carbon &c. is first heated at a temperature of 900 DEG C. and the sulphide containing reaction product is treated with steam and carbon dioxide at 400-500 DEG C. Hydrogen sulphide is also obtained. The reaction mass may be employed in briquetted form and brown or bituminous coal may be employed as carbonaceous material. If the hydrolysis with steam is carried out on the briquetted cyanidized product, alkali carbonate is produced but if the cyanidized mass is broken up and spread in thin layers on shallow pans for the steam treatment, mixtures of alkali carbonate and hydroxide are produced. Examples in which the starting materials comprise sodium or potassium sulphate are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE392765X | 1931-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB392765A true GB392765A (en) | 1933-05-25 |
Family
ID=6387593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18684/32A Expired GB392765A (en) | 1931-07-15 | 1932-07-01 | Improved manufacture of alkali carbonate or alkali hydroxide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB392765A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2590412A (en) * | 1947-11-14 | 1952-03-25 | Zuid Nl Spiritusfabriek Nv | Method of working up the waste liquor of fermentation industries in which molasses are used |
| US2840455A (en) * | 1953-12-02 | 1958-06-24 | Tholand Inc | Production of lithium carbonate |
-
1932
- 1932-07-01 GB GB18684/32A patent/GB392765A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2590412A (en) * | 1947-11-14 | 1952-03-25 | Zuid Nl Spiritusfabriek Nv | Method of working up the waste liquor of fermentation industries in which molasses are used |
| US2840455A (en) * | 1953-12-02 | 1958-06-24 | Tholand Inc | Production of lithium carbonate |
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