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FR2499539B1 - PROCESS FOR TREATING WET PHOSPHORIC ACID - Google Patents

PROCESS FOR TREATING WET PHOSPHORIC ACID

Info

Publication number
FR2499539B1
FR2499539B1 FR8102641A FR8102641A FR2499539B1 FR 2499539 B1 FR2499539 B1 FR 2499539B1 FR 8102641 A FR8102641 A FR 8102641A FR 8102641 A FR8102641 A FR 8102641A FR 2499539 B1 FR2499539 B1 FR 2499539B1
Authority
FR
France
Prior art keywords
phosphoric acid
wet phosphoric
treating wet
treating
acid
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
FR8102641A
Other languages
French (fr)
Other versions
FR2499539A1 (en
Inventor
Louis Winand
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.)
Rhone Poulenc Chimie de Base SA
Original Assignee
Rhone Poulenc Chimie de Base SA
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 Rhone Poulenc Chimie de Base SA filed Critical Rhone Poulenc Chimie de Base SA
Priority to FR8102641A priority Critical patent/FR2499539B1/en
Publication of FR2499539A1 publication Critical patent/FR2499539A1/en
Application granted granted Critical
Publication of FR2499539B1 publication Critical patent/FR2499539B1/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
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • C01B25/41—Polyphosphates of alkali metals
    • C01B25/412—Preparation from alkali metal orthophosphates
    • C01B25/416—Pure alkali metal polyphosphates from impure starting materials
    • 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
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities
    • 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
    • C01B25/308—Methods for converting an alkali metal orthophosphate into another one; Purification; Decolorasing; Dehydrating; Drying
    • 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
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • C01B25/462—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being alcohol or a mixture of alcohols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
FR8102641A 1981-02-11 1981-02-11 PROCESS FOR TREATING WET PHOSPHORIC ACID Expired FR2499539B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8102641A FR2499539B1 (en) 1981-02-11 1981-02-11 PROCESS FOR TREATING WET PHOSPHORIC ACID

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8102641A FR2499539B1 (en) 1981-02-11 1981-02-11 PROCESS FOR TREATING WET PHOSPHORIC ACID

Publications (2)

Publication Number Publication Date
FR2499539A1 FR2499539A1 (en) 1982-08-13
FR2499539B1 true FR2499539B1 (en) 1986-02-14

Family

ID=9255066

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8102641A Expired FR2499539B1 (en) 1981-02-11 1981-02-11 PROCESS FOR TREATING WET PHOSPHORIC ACID

Country Status (1)

Country Link
FR (1) FR2499539B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1553095A (en) * 1967-11-30 1969-01-10
DE2029564C3 (en) * 1970-06-16 1978-06-22 Giulini Chemie Gmbh, 6700 Ludwigshafen Process for the production of pure alkali phosphates from rock phosphoric acid
DE2522220C3 (en) * 1975-05-20 1982-05-13 Giulini Chemie Gmbh, 6700 Ludwigshafen Process for the elimination of organic impurities in aqueous phosphoric acid solutions

Also Published As

Publication number Publication date
FR2499539A1 (en) 1982-08-13

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Legal Events

Date Code Title Description
ST Notification of lapse