FR2272029A2 - Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment - Google Patents

Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment

Info

Publication number
FR2272029A2
FR2272029A2 FR7417425A FR7417425A FR2272029A2 FR 2272029 A2 FR2272029 A2 FR 2272029A2 FR 7417425 A FR7417425 A FR 7417425A FR 7417425 A FR7417425 A FR 7417425A FR 2272029 A2 FR2272029 A2 FR 2272029A2
Authority
FR
France
Prior art keywords
pretreatment
flocculating agent
phosphoric acid
crude phosphate
adding flocculating
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.)
Granted
Application number
FR7417425A
Other languages
English (en)
French (fr)
Other versions
FR2272029B2 (ref
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.)
CERPHOS
Original Assignee
CERPHOS
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 CERPHOS filed Critical CERPHOS
Priority to FR7417425A priority Critical patent/FR2272029A2/fr
Publication of FR2272029A2 publication Critical patent/FR2272029A2/fr
Application granted granted Critical
Publication of FR2272029B2 publication Critical patent/FR2272029B2/fr
Granted 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
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
    • C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
    • C01B25/225—Dihydrate process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Filtration Of Liquid (AREA)
FR7417425A 1974-05-20 1974-05-20 Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment Granted FR2272029A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7417425A FR2272029A2 (en) 1974-05-20 1974-05-20 Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7417425A FR2272029A2 (en) 1974-05-20 1974-05-20 Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment

Publications (2)

Publication Number Publication Date
FR2272029A2 true FR2272029A2 (en) 1975-12-19
FR2272029B2 FR2272029B2 (ref) 1978-08-04

Family

ID=9139050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7417425A Granted FR2272029A2 (en) 1974-05-20 1974-05-20 Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment

Country Status (1)

Country Link
FR (1) FR2272029A2 (ref)

Also Published As

Publication number Publication date
FR2272029B2 (ref) 1978-08-04

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Legal Events

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TP Transmission of property
AM Act modifying the rights related to an application or a patent