GB1203444A - Production of potassium dihydrogen phosphate - Google Patents
Production of potassium dihydrogen phosphateInfo
- Publication number
- GB1203444A GB1203444A GB1075167A GB1075167A GB1203444A GB 1203444 A GB1203444 A GB 1203444A GB 1075167 A GB1075167 A GB 1075167A GB 1075167 A GB1075167 A GB 1075167A GB 1203444 A GB1203444 A GB 1203444A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium
- magnesium
- phosphate
- dihydrogen phosphate
- solution
- 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
- GNSKLFRGEWLPPA-UHFFFAOYSA-M Monopotassium phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 title abstract 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 title abstract 3
- 235000019796 monopotassium phosphate Nutrition 0.000 title abstract 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 3
- 239000011575 calcium Substances 0.000 abstract 3
- 229910052791 calcium Inorganic materials 0.000 abstract 3
- 239000000243 solution Substances 0.000 abstract 3
- QORWJWZARLRLPR-UHFFFAOYSA-H Tricalcium phosphate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 2
- 239000001506 calcium phosphate Substances 0.000 abstract 2
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 2
- 235000011010 calcium phosphates Nutrition 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 2
- 239000000706 filtrate Substances 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 2
- 239000011777 magnesium Substances 0.000 abstract 2
- 229910052749 magnesium Inorganic materials 0.000 abstract 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 2
- MXZRMHIULZDAKC-UHFFFAOYSA-L magnesium;azane;hydrogen phosphate Chemical compound [NH4+].[Mg+2].[O-]P([O-])([O-])=O MXZRMHIULZDAKC-UHFFFAOYSA-L 0.000 abstract 2
- 239000001103 potassium chloride Substances 0.000 abstract 2
- 235000011164 potassium chloride Nutrition 0.000 abstract 2
- 229910052567 struvite Inorganic materials 0.000 abstract 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N Ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 abstract 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 229910001424 calcium ion Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000001640 fractional crystallisation Methods 0.000 abstract 1
- 229910001425 magnesium ion Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 235000019837 monoammonium phosphate Nutrition 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
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
- C01B25/305—Preparation from phosphorus-containing compounds by alkaline treatment
- C01B25/306—Preparation from phosphorus-containing compounds by alkaline treatment from phosphates
Abstract
1,203,444. Potassium dihydrogen phosphate; calcium phosphate; magnesium ammonium phosphate. ALBRIGHT & WILSON (MFG.) Ltd. 6 March, 1968 [7 March, 1967], No. 10751/67. Heading C1A. Potassium dihydrogen phosphate is precipitated by cooling to a temperature of less than 54‹ C., an aqueous solution which was saturated with potassium chloride and ammonium dihydrogen phosphate at at least 55‹ C. The solution may be saturated with at least one of the solutes at between 80‹ and 100‹ C., and may be cooled to less than 10‹ C. for precipitation. Calcium phosphate, or magnesium ammonium phosphate may be precipitated as by-products by filtering and adding a source of calcium or magnesium ions to the filtrate. After further filtration, the filtrate may be treated with base to liberate ammonia, and potassium chloride may be recovered by a known fractional crystallization process, leaving a solution of calcium (or magnesium) chloride. All these recovered products may be recycled. The calcium and mangesium ion sources are normally CaO or MgO. However, these ions may be provided by the recycled calcium, or magnesium, chloride solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1075167A GB1203444A (en) | 1967-03-07 | 1967-03-07 | Production of potassium dihydrogen phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1075167A GB1203444A (en) | 1967-03-07 | 1967-03-07 | Production of potassium dihydrogen phosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1203444A true GB1203444A (en) | 1970-08-26 |
Family
ID=9973605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1075167A Expired GB1203444A (en) | 1967-03-07 | 1967-03-07 | Production of potassium dihydrogen phosphate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1203444A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678649A (en) * | 1985-07-10 | 1987-07-07 | Negev Phosphates Ltd. | Process for the manufacture of monopotassium phosphate |
| CN101602499B (en) * | 2009-06-15 | 2012-02-15 | 黄继曦 | Potassium dihydrogen phosphate prepared by agricultural ammonium phosphate and water-insoluble phosphorus recovery method thereof |
| CN102923681A (en) * | 2012-09-26 | 2013-02-13 | 武汉新协达精细化工研发有限公司 | Method for directly preparing industrial monopotassium phosphate through low-grade phosphate ores by hydrochloric acid process |
| CN105000539A (en) * | 2015-08-17 | 2015-10-28 | 四川大学 | Method for producing potassium dihydrogen phosphate and potassium-ammonium dihydrogen phosphate through wet process phosphoric acid |
| CN107434245A (en) * | 2017-06-26 | 2017-12-05 | 湖北祥云(集团)化工股份有限公司 | A kind of method and system of industrial grade monoammonium phosphate mother liquor production potassium dihydrogen phosphate |
| CN107720713A (en) * | 2017-10-29 | 2018-02-23 | 贵阳开磷化肥有限公司 | A kind of method that phosphoric acid by wet process prepares ammonium dihydrogen phosphate co-production potassium dihydrogen phosphate |
-
1967
- 1967-03-07 GB GB1075167A patent/GB1203444A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678649A (en) * | 1985-07-10 | 1987-07-07 | Negev Phosphates Ltd. | Process for the manufacture of monopotassium phosphate |
| CN101602499B (en) * | 2009-06-15 | 2012-02-15 | 黄继曦 | Potassium dihydrogen phosphate prepared by agricultural ammonium phosphate and water-insoluble phosphorus recovery method thereof |
| CN102923681A (en) * | 2012-09-26 | 2013-02-13 | 武汉新协达精细化工研发有限公司 | Method for directly preparing industrial monopotassium phosphate through low-grade phosphate ores by hydrochloric acid process |
| CN102923681B (en) * | 2012-09-26 | 2014-12-24 | 武汉新协达精细化工研发有限公司 | Method for directly preparing industrial monopotassium phosphate through low-grade phosphate ores by hydrochloric acid process |
| CN105000539A (en) * | 2015-08-17 | 2015-10-28 | 四川大学 | Method for producing potassium dihydrogen phosphate and potassium-ammonium dihydrogen phosphate through wet process phosphoric acid |
| CN107434245A (en) * | 2017-06-26 | 2017-12-05 | 湖北祥云(集团)化工股份有限公司 | A kind of method and system of industrial grade monoammonium phosphate mother liquor production potassium dihydrogen phosphate |
| CN107434245B (en) * | 2017-06-26 | 2019-11-08 | 湖北祥云(集团)化工股份有限公司 | A kind of method and system of industrial grade monoammonium phosphate mother liquor production potassium dihydrogen phosphate |
| CN107720713A (en) * | 2017-10-29 | 2018-02-23 | 贵阳开磷化肥有限公司 | A kind of method that phosphoric acid by wet process prepares ammonium dihydrogen phosphate co-production potassium dihydrogen phosphate |
| CN107720713B (en) * | 2017-10-29 | 2020-11-20 | 贵阳开磷化肥有限公司 | Method for preparing ammonium dihydrogen phosphate and co-producing potassium dihydrogen phosphate by wet-process phosphoric acid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |