GB635175A - Manufacture of anhydrous caustic potash - Google Patents
Manufacture of anhydrous caustic potashInfo
- Publication number
- GB635175A GB635175A GB3254347A GB3254347A GB635175A GB 635175 A GB635175 A GB 635175A GB 3254347 A GB3254347 A GB 3254347A GB 3254347 A GB3254347 A GB 3254347A GB 635175 A GB635175 A GB 635175A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- koh
- ton
- solution
- calories
- 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
- C01D1/42—Concentration; Dehydration
Abstract
Substantially anhydrous caustic potash is made from an aqueous solution containing between 80 and 96 per cent KOH at 200-350 DEG C. by exposing a large surface area of the solution to a gas or vapour, in which the partial water vapour pressure is kept below 150 mm. of mercury, under adiabatic conditions or under such isothermal conditions that not more than 80 ton calories are gained or not more than 40 ton calories are lost by the system per ton of product. The process may be executed by spraying an 85-95 per cent KOH solution at 250-350 DEG C. into a vacuum or by spraying an 80-90 per cent KOH solution at 200-300 DEG C. through a current of hot air or by feeding an 80-95 per cent KOH solution into a vessel containing granular KOH or other solid carrier which is being agitated while air passes over it, or by spreading the liquor as a film. A superheated KOH liquor may also be used. The final product is granular and dust free contains less than 1 per cent water and is of apparent density between 0.3 and 1.2 gr./c.c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3254347A GB635175A (en) | 1947-12-10 | 1947-12-10 | Manufacture of anhydrous caustic potash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3254347A GB635175A (en) | 1947-12-10 | 1947-12-10 | Manufacture of anhydrous caustic potash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB635175A true GB635175A (en) | 1950-04-05 |
Family
ID=10340213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3254347A Expired GB635175A (en) | 1947-12-10 | 1947-12-10 | Manufacture of anhydrous caustic potash |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB635175A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2102166A1 (en) * | 1970-02-04 | 1971-08-19 | Hch Bertrams AG, Basel (Schweiz) | Method and device for concentrating caustic solution |
-
1947
- 1947-12-10 GB GB3254347A patent/GB635175A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2102166A1 (en) * | 1970-02-04 | 1971-08-19 | Hch Bertrams AG, Basel (Schweiz) | Method and device for concentrating caustic solution |
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