GB234585A - Improvements in and relating to processes for the production of potassium carbonate - Google Patents
Improvements in and relating to processes for the production of potassium carbonateInfo
- Publication number
- GB234585A GB234585A GB824524A GB824524A GB234585A GB 234585 A GB234585 A GB 234585A GB 824524 A GB824524 A GB 824524A GB 824524 A GB824524 A GB 824524A GB 234585 A GB234585 A GB 234585A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbonate
- potassium carbonate
- carbonic acid
- precipitated
- purity
- 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
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/07—Preparation from the hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process for the production of potassium carbonate of a desired degree of purity consists in treating a caustic potash solution with carbonic acid for such a length of time, which is greater or less according to the degree of purity desired, that only a part of the potassium hydroxide is converted into carbonate, leaving sufficient caustic potash in solution to retain the impurities contained in the original liquor. When a concentrated solution of potassium hydroxide of about 45 DEG B<\>ae. is employed, pure potassium carbonate is precipitated until about 40-50 per cent of the hydroxide has been converted into carbonate. The precipitated carbonate is separated at this point, beyond which, dissolution commences if the process is continued. Potassium carbonate of a lesser degree of purity may be obtained by continuing the process beyond the point at which dissolution of the precipitated potassium carbonate begins, and subsequently separating the carbonate by evaporation and cooling. The process may also be adapted to the purification of impure potassium carbonate by treating it with a caustic potash solution of about 45 DEG B<\>ae. and passing carbonic acid. The carbonic acid treatment is preferably carried out at a temperature of about 10-15 DEG C. in order to increase the yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB824524A GB234585A (en) | 1924-04-01 | 1924-04-01 | Improvements in and relating to processes for the production of potassium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB824524A GB234585A (en) | 1924-04-01 | 1924-04-01 | Improvements in and relating to processes for the production of potassium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB234585A true GB234585A (en) | 1925-06-04 |
Family
ID=9848774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB824524A Expired GB234585A (en) | 1924-04-01 | 1924-04-01 | Improvements in and relating to processes for the production of potassium carbonate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB234585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013072722A1 (en) * | 2011-11-17 | 2013-05-23 | Gc Technology | Interconnected system and method for the purification and recovery of potash |
-
1924
- 1924-04-01 GB GB824524A patent/GB234585A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013072722A1 (en) * | 2011-11-17 | 2013-05-23 | Gc Technology | Interconnected system and method for the purification and recovery of potash |
| US9017426B2 (en) | 2011-11-17 | 2015-04-28 | Gc Technology Limited | Interconnected system and method for the purification and recovery of potash |
| RU2559649C1 (en) * | 2011-11-17 | 2015-08-10 | ДЖиСи ТЕКНОЛОДЖИ ЛИМИТЕД | Interconnected system and method of purification and restoration of potash |
| AP3828A (en) * | 2011-11-17 | 2016-09-30 | Gc Technology Ltd | Interconnected system and method for the purification and recovery of potash |
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