GB1049425A - Improvements in or relating to processes for the production of metal phosphates - Google Patents

Improvements in or relating to processes for the production of metal phosphates

Info

Publication number
GB1049425A
GB1049425A GB2974263A GB2974263A GB1049425A GB 1049425 A GB1049425 A GB 1049425A GB 2974263 A GB2974263 A GB 2974263A GB 2974263 A GB2974263 A GB 2974263A GB 1049425 A GB1049425 A GB 1049425A
Authority
GB
United Kingdom
Prior art keywords
potassium phosphate
relating
processes
production
maintained
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
GB2974263A
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.)
SALZGETTER CLERNIE GES MIT BES
Original Assignee
SALZGETTER CLERNIE GES MIT BES
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 SALZGETTER CLERNIE GES MIT BES filed Critical SALZGETTER CLERNIE GES MIT BES
Publication of GB1049425A publication Critical patent/GB1049425A/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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Potassium phosphate is produced by a process in which an aqueous suspension of water-insoluble basic slag is reacted with potassium sulphate at a pH maintained between 1.5 and 8.0 by the presence of sulphuric acid to provide a solid phase containing insoluble metal sulphate and a liquid phase containing potassium phosphate, the phases are separated and the potassium phosphate is optionally recovered from the liquid phase. Carbonic acid, for example in the form of carbon dioxide gas under pressure, may be added to the reaction mixture, in which case the pH of the solution is maintained between 4 and 6.
GB2974263A 1962-07-26 1963-07-26 Improvements in or relating to processes for the production of metal phosphates Expired GB1049425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN21897A DE1196167B (en) 1962-07-26 1962-07-26 Process for the production of potassium phosphates from thomas flour

Publications (1)

Publication Number Publication Date
GB1049425A true GB1049425A (en) 1966-11-30

Family

ID=7341909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2974263A Expired GB1049425A (en) 1962-07-26 1963-07-26 Improvements in or relating to processes for the production of metal phosphates

Country Status (3)

Country Link
DE (1) DE1196167B (en)
GB (1) GB1049425A (en)
LU (1) LU44129A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154995B (en) * 1984-01-25 1987-10-07 Griffith Thomas Conversion of orthophosphate to pyro-and polyphosphate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE84380C (en) *
GB228220A (en) * 1923-09-28 1925-01-28 John Guilfoyle Williams Improvements in and relating to the manufacture of water-soluble phosphates
DE1076648B (en) * 1959-01-07 1960-03-03 Henkel & Cie Gmbh Process for processing Thomas slag for the purpose of obtaining phosphorus and vanadium compounds

Also Published As

Publication number Publication date
LU44129A1 (en) 1963-09-24
DE1196167B (en) 1965-07-08

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