GB215813A - Improved manufacture of phosphoric acid - Google Patents

Improved manufacture of phosphoric acid

Info

Publication number
GB215813A
GB215813A GB167323A GB167323A GB215813A GB 215813 A GB215813 A GB 215813A GB 167323 A GB167323 A GB 167323A GB 167323 A GB167323 A GB 167323A GB 215813 A GB215813 A GB 215813A
Authority
GB
United Kingdom
Prior art keywords
barium
sodium
phosphate
sulphide
phosphates
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
GB167323A
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.)
LAPORTE Ltd B
Original Assignee
LAPORTE Ltd B
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 LAPORTE Ltd B filed Critical LAPORTE Ltd B
Priority to GB167323A priority Critical patent/GB215813A/en
Publication of GB215813A publication Critical patent/GB215813A/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
    • C01B25/18—Phosphoric acid
    • C01B25/185—Preparation neither from elemental phosphorus or phosphoric anhydride nor by reacting phosphate-containing material with an acid, e.g. by reacting phosphate-containing material with an ion-exchange resin or an acid salt used alone

Landscapes

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

Abstract

Pure phosphoric acid is produced by decomposing by means of sulphuric acid barium phosphate obtained by the treatment of di- or tri-sodium phosphate with barium sulphide. In an example, to a solution of barium sulphide crystallized di-sodium phosphate and a solution of caustic soda are added until no further precipitation occurs. After filtering and washing free from sodium sulphide which may be recovered, the precipitate of barium phosphate is decomposed by means of sulphuric acid and the barium sulphate removed. In another example sodium phosphate is formed by treating commercial phosphoric acid with sodium carbonate and caustic soda. Barium phosphate is then precipitated by means of barium sulphide and treated as in the first example. Potassium and ammonium phosphates may be used in place of sodium phosphates.ALSO:Barium phosphate is produced by treating barium sulphide with di- or tri-sodium phosphate. The barium phosphate precipitated is filtered off and the sodium sulphide in solution may be recovered as a bye-product. Ammonium or potassium phosphates may be used in place of sodium phosphates.
GB167323A 1923-01-18 1923-01-18 Improved manufacture of phosphoric acid Expired GB215813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB167323A GB215813A (en) 1923-01-18 1923-01-18 Improved manufacture of phosphoric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB167323A GB215813A (en) 1923-01-18 1923-01-18 Improved manufacture of phosphoric acid

Publications (1)

Publication Number Publication Date
GB215813A true GB215813A (en) 1924-05-19

Family

ID=9726039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB167323A Expired GB215813A (en) 1923-01-18 1923-01-18 Improved manufacture of phosphoric acid

Country Status (1)

Country Link
GB (1) GB215813A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0618286A1 (en) * 1993-03-30 1994-10-05 AUSIMONT S.p.A. Process for decreasing the build up of inorganic incrustations on textiles and detergent composition used in such process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0618286A1 (en) * 1993-03-30 1994-10-05 AUSIMONT S.p.A. Process for decreasing the build up of inorganic incrustations on textiles and detergent composition used in such process

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