GB327885A - - Google Patents
Info
- Publication number
- GB327885A GB327885A GB14049/29A GB1404929A GB327885A GB 327885 A GB327885 A GB 327885A GB 14049/29 A GB14049/29 A GB 14049/29A GB 1404929 A GB1404929 A GB 1404929A GB 327885 A GB327885 A GB 327885A
- Authority
- GB
- United Kingdom
- Prior art keywords
- monophosphate
- acid
- potassium
- acid salt
- liquor
- 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
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
- C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Abstract
327,885. Kali-Forschungs - Anstalt Ges. Nov. 19, 1928, [Convention date]. Potassium monophosphate is obtaiend by heating potassium chloride with an excess of phosphoric acid of over 30 per cent strength at about 130‹ C., until the chlorine is driven off as hydrochloric acid, this being accelerated by working under reduced pressure. The acid salt. KH2PO4.H3PO4 crystallizes on cooling, and after separation, is treated with sufficient potassium monophosphate solution or water to precipitate potassium monophosphate, and leave a supernatant liquor saturated with the acid and monophosphate. This liquor and the mother liquor from the crystallization of the acid salt are used, with a further addition of phosphoric acid, for the conversion of further quantities of potassium chloride. The precipitated monophosphate is treated with water, and the mother liquor therefrom is again used to decompose the acid salt. Alternatively, the hot solution from the reaction with phosphoric acid may be treated with sufficient potassium monophosphate solution or water to produce, after cooling to precipitate potassium monophosphate, a liquor corresponding in composition to the liquod obtained above in the first described method of splitting the acid salt.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE327885T | 1928-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB327885A true GB327885A (en) | 1930-04-17 |
Family
ID=31894840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14049/29A Expired GB327885A (en) | 1928-11-19 | 1929-05-06 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB327885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113072047A (en) * | 2021-05-25 | 2021-07-06 | 贵州川恒化工股份有限公司 | Production process for continuously preparing monopotassium phosphate |
-
1929
- 1929-05-06 GB GB14049/29A patent/GB327885A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113072047A (en) * | 2021-05-25 | 2021-07-06 | 贵州川恒化工股份有限公司 | Production process for continuously preparing monopotassium phosphate |
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