GB1203444A - Production of potassium dihydrogen phosphate - Google Patents

Production of potassium dihydrogen phosphate

Info

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
Application number
GB1075167A
Inventor
Raymond Anthony Smith
Maurice Bevis Jackson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Albright and Wilson Mfg Ltd
Original Assignee
Albright and Wilson Mfg Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Albright and Wilson Mfg Ltd filed Critical Albright and Wilson Mfg Ltd
Priority to GB1075167A priority Critical patent/GB1203444A/en
Publication of GB1203444A publication Critical patent/GB1203444A/en
Expired legal-status Critical Current

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
    • C01B25/305—Preparation from phosphorus-containing compounds by alkaline treatment
    • C01B25/306—Preparation from phosphorus-containing compounds by alkaline treatment from phosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)

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.
GB1075167A 1967-03-07 1967-03-07 Production of potassium dihydrogen phosphate Expired GB1203444A (en)

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 (7)

* Cited by examiner, † Cited by third party
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
CN115072683A (en) * 2022-06-14 2022-09-20 四川宏达股份有限公司 Method for preparing potassium dihydrogen phosphate by atomizing ammonia

Cited By (10)

* Cited by examiner, † Cited by third party
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
CN115072683A (en) * 2022-06-14 2022-09-20 四川宏达股份有限公司 Method for preparing potassium dihydrogen phosphate by atomizing ammonia

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees