GB396092A - A process for the production of nitrogenous and/or phosphatic mixed fertilisers of desired composition by treatment of raw phosphates with nitric acid - Google Patents
A process for the production of nitrogenous and/or phosphatic mixed fertilisers of desired composition by treatment of raw phosphates with nitric acidInfo
- Publication number
- GB396092A GB396092A GB2410/32A GB241032A GB396092A GB 396092 A GB396092 A GB 396092A GB 2410/32 A GB2410/32 A GB 2410/32A GB 241032 A GB241032 A GB 241032A GB 396092 A GB396092 A GB 396092A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonium
- ammonia
- ammonium nitrate
- nitrate
- fertilizers
- 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
- C05B11/06—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 nitric acid (nitrophosphates)
Abstract
Fertilizers are prepared by decomposing raw phosphates with that quantity of nitric acid necessary to render the phosphoric acid present soluble, treating the mixture with ammonium salts of those acids which with calcium form difficulty soluble salts, preferably with ammonium sulphate, filtering off the precipitated calcium sulphate and undecomposed gangue, evaporating the solution almost to dryness to form a mixture of ammonium nitrate, ammonium phosphates and residual calcium sulphate, and treating the mass with liquid or gaseous ammonia in a practically pure state until the nitrate is dissolved out. The ammonium nitrate, after the removal of the ammonia, and the ammonium phosphate, preferably after the removal of residual ammonia, are then mixed with one another in the proportions desiredm or one or the other may be mixed with the dried reaction mass which has not been treated with ammonia. Any residual ammonium nitrate or ammonium phosphate may be mixed with other fertilizers. The ammonia used for dissolving out the ammonium nitrate, if necessary after separation from the ammonium nitrate, may be combined with acid to form fertilizers. Specifications 356,759, [Group II], and 389,082 are referred to.ALSO:Fertilizers are prepared by decomposing raw phosphates with that quantity of nitric acid necessary to render the phosphoric acid present soluble, treating the mixture with ammonium salts of those acids which with calcium form difficulty soluble salts, preferably with ammonium sulphate, filtering off the precipitated calcium sulphate and undecomposed gangue, evaporating the solution almost to dryness to form a mixture of ammonium nitrate, ammonium phosphates and residual calcium sulphate, and treating the mass with liquid or gaseous ammonia in a practically pure state until the nitrate is dissolved out. The ammonium nitrate, after the removal of the ammonia, and the ammonium phosphate, preferably after the removal of residual ammonia, are then mixed with one another in the proportions desired, or one or the other may be mixed with the dried reaction mass which has not been treated with ammonia. Any residual ammonium nitrate or ammonium phosphate may be mixed with other fertilizers. The ammonia used for dissolving out the ammonium nitrate, if necessary after separation from the ammonium nitrate, may be combined with acid to form fertilizers. Specifications 356,759, [Group II], and 389,082 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE396092X | 1931-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB396092A true GB396092A (en) | 1933-07-27 |
Family
ID=6396973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2410/32A Expired GB396092A (en) | 1931-01-29 | 1932-01-26 | A process for the production of nitrogenous and/or phosphatic mixed fertilisers of desired composition by treatment of raw phosphates with nitric acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB396092A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2814556A (en) * | 1953-03-06 | 1957-11-26 | Allied Chem & Dye Corp | Fertilizer comprising urea and ammonium hydrogen phosphates |
| US2919183A (en) * | 1955-05-20 | 1959-12-29 | Allied Chem | Fertilizer solutions |
| US3046105A (en) * | 1960-07-18 | 1962-07-24 | Collier Carbon & Chemical Co | Liquid fertilizers |
| CN108456007A (en) * | 2018-04-02 | 2018-08-28 | 金正大生态工程集团股份有限公司 | A kind of calcium polyphosphate magnesium fertilizer and preparation method thereof prepared as raw material using phosphoric acid and phosphorus tailing |
-
1932
- 1932-01-26 GB GB2410/32A patent/GB396092A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2814556A (en) * | 1953-03-06 | 1957-11-26 | Allied Chem & Dye Corp | Fertilizer comprising urea and ammonium hydrogen phosphates |
| US2919183A (en) * | 1955-05-20 | 1959-12-29 | Allied Chem | Fertilizer solutions |
| US3046105A (en) * | 1960-07-18 | 1962-07-24 | Collier Carbon & Chemical Co | Liquid fertilizers |
| CN108456007A (en) * | 2018-04-02 | 2018-08-28 | 金正大生态工程集团股份有限公司 | A kind of calcium polyphosphate magnesium fertilizer and preparation method thereof prepared as raw material using phosphoric acid and phosphorus tailing |
| CN108456007B (en) * | 2018-04-02 | 2021-05-25 | 金正大生态工程集团股份有限公司 | Calcium-magnesium polyphosphate fertilizer prepared by taking phosphoric acid and phosphate tailings as raw materials and preparation method thereof |
| US11787748B2 (en) | 2018-04-02 | 2023-10-17 | Kingenta Ecological Engineering Group Co., Ltd. | Polyphosphoric acid calcium magnesium fertilizer, polyphosphoric acid calcium magnesium fertilizer prepared by using phosphoric acid and phosphorus tailings as raw material and preparation method therefor |
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