GB353397A - Process for the manufacture of alkali lyes from alkali sulphates - Google Patents
Process for the manufacture of alkali lyes from alkali sulphatesInfo
- Publication number
- GB353397A GB353397A GB1814/30A GB181430A GB353397A GB 353397 A GB353397 A GB 353397A GB 1814/30 A GB1814/30 A GB 1814/30A GB 181430 A GB181430 A GB 181430A GB 353397 A GB353397 A GB 353397A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali
- sulphate
- strontium
- lyes
- excess
- 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
- C01D1/20—Preparation by reacting oxides or hydroxides with alkali metal salts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Caustic alkali is made by treating alkali sulphate with solid strontium oxide or hydroxide. The latter may be added in excess to a concentrated solution of the sulphate, or solid alkali sulphate, such as Glauber's salt may be introduced into a suspension of strontium hydroxide. The heat of slaking aids the decomposition, and the excess strontia separates on cooling. The strontium sulphate may be reconverted into oxide by the intermediate formation of sulphide or hydrosulphide, or by boiling with sodium carbonate in known manner, or by treating with ammonium carbonate, or ammonia and carbon dioxide and calcining the strontium carbonate formed, for instance in a rotary furnace at 1200 DEG C. The carbon dioxide evolved, and the ammonia recovered from the ammonium sulphate lyes are used again.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE353397X | 1929-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB353397A true GB353397A (en) | 1931-07-23 |
Family
ID=6281760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1814/30A Expired GB353397A (en) | 1929-01-19 | 1930-01-18 | Process for the manufacture of alkali lyes from alkali sulphates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB353397A (en) |
-
1930
- 1930-01-18 GB GB1814/30A patent/GB353397A/en not_active Expired
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