GB228220A - Improvements in and relating to the manufacture of water-soluble phosphates - Google Patents
Improvements in and relating to the manufacture of water-soluble phosphatesInfo
- Publication number
- GB228220A GB228220A GB2416623A GB2416623A GB228220A GB 228220 A GB228220 A GB 228220A GB 2416623 A GB2416623 A GB 2416623A GB 2416623 A GB2416623 A GB 2416623A GB 228220 A GB228220 A GB 228220A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphate
- ammonium
- alkali
- relating
- manufacture
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
- C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
- C05B11/08—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using sulfuric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials For Medical Uses (AREA)
Abstract
Hydrated calcium phosphate, preferably precipitated di-calcium hydrogen phosphate, is treated with sulphuric or phosphoric acid and ammonium sulphate or with ammonium bisulphate to obtain ammonium phosphate. According to the Provisional Specification finely-ground tri-calcium phosphate may be employed. Specification 184,206 is referred to.ALSO:Hydrated calcium phosphate, preferably precipitated decalcium phosphate is treated with sulphuric or phosphoric acid and an alkali or ammonium sulphate or with an alkali or ammonium bisulphate to obtain an alkali or ammonium phosphate. It is preferred to use a small excess of acid except when making ammonium phosphate. According to the Provisional Specification, tricalcium phosphate may be used as starting material. Specification 184,206 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2416623A GB228220A (en) | 1923-09-28 | 1923-09-28 | Improvements in and relating to the manufacture of water-soluble phosphates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2416623A GB228220A (en) | 1923-09-28 | 1923-09-28 | Improvements in and relating to the manufacture of water-soluble phosphates |
Publications (1)
Publication Number | Publication Date |
---|---|
GB228220A true GB228220A (en) | 1925-01-28 |
Family
ID=10207430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2416623A Expired GB228220A (en) | 1923-09-28 | 1923-09-28 | Improvements in and relating to the manufacture of water-soluble phosphates |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB228220A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1146856B (en) * | 1961-03-22 | 1963-04-11 | Knapsack Ag | Process for the production of alkali and / or alkaline earth phosphates with simultaneous production of volatile mineral acids |
DE1196167B (en) * | 1962-07-26 | 1965-07-08 | Salzgitter Chemie Ges Mit Besc | Process for the production of potassium phosphates from thomas flour |
EP0240635A1 (en) * | 1986-03-30 | 1987-10-14 | Negev Phosphates Ltd. | Process for the manufacture of disodium phosphate |
WO2011137880A1 (en) * | 2010-05-05 | 2011-11-10 | Axel Bruckert | Method for producing phosphate fertilizers and compound fertilizers |
-
1923
- 1923-09-28 GB GB2416623A patent/GB228220A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1146856B (en) * | 1961-03-22 | 1963-04-11 | Knapsack Ag | Process for the production of alkali and / or alkaline earth phosphates with simultaneous production of volatile mineral acids |
DE1196167B (en) * | 1962-07-26 | 1965-07-08 | Salzgitter Chemie Ges Mit Besc | Process for the production of potassium phosphates from thomas flour |
EP0240635A1 (en) * | 1986-03-30 | 1987-10-14 | Negev Phosphates Ltd. | Process for the manufacture of disodium phosphate |
WO2011137880A1 (en) * | 2010-05-05 | 2011-11-10 | Axel Bruckert | Method for producing phosphate fertilizers and compound fertilizers |
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