FR1456263A - Procédé de défluoration de l'acide phosphorique - Google Patents

Procédé de défluoration de l'acide phosphorique

Info

Publication number
FR1456263A
FR1456263A FR40063A FR40063A FR1456263A FR 1456263 A FR1456263 A FR 1456263A FR 40063 A FR40063 A FR 40063A FR 40063 A FR40063 A FR 40063A FR 1456263 A FR1456263 A FR 1456263A
Authority
FR
France
Prior art keywords
phosphoric acid
defluorination process
acid defluorination
phosphoric
defluorination
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
FR40063A
Other languages
English (en)
French (fr)
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.)
EERSTE NL COOPERATIEVE KUNSTME
Original Assignee
EERSTE NL COOPERATIEVE KUNSTME
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 EERSTE NL COOPERATIEVE KUNSTME filed Critical EERSTE NL COOPERATIEVE KUNSTME
Application granted granted Critical
Publication of FR1456263A publication Critical patent/FR1456263A/fr
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
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities
    • C01B25/2372—Anionic impurities, e.g. silica or boron compounds
    • C01B25/2375—Fluoride or fluosilicate anion
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/08—Compounds containing halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Removal Of Specific Substances (AREA)
FR40063A 1964-11-30 1965-11-29 Procédé de défluoration de l'acide phosphorique Expired FR1456263A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6413920A NL151045B (nl) 1964-11-30 1964-11-30 Werkwijze voor het verwijderen van fluor uit fosforzuur.

Publications (1)

Publication Number Publication Date
FR1456263A true FR1456263A (fr) 1966-10-21

Family

ID=19791540

Family Applications (1)

Application Number Title Priority Date Filing Date
FR40063A Expired FR1456263A (fr) 1964-11-30 1965-11-29 Procédé de défluoration de l'acide phosphorique

Country Status (9)

Country Link
JP (1) JPS4811475B1 (nl)
BE (1) BE672707A (nl)
DE (1) DE1287053C2 (nl)
DK (1) DK109385C (nl)
FI (1) FI45315C (nl)
FR (1) FR1456263A (nl)
GB (1) GB1127247A (nl)
NL (1) NL151045B (nl)
SE (1) SE319757C (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718729A (en) * 1971-03-15 1973-02-27 American Cyanamid Co Defluorination of wet process phosphoric acid

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2719701C3 (de) * 1976-05-06 1986-10-02 W.R. Grace & Co., New York, N.Y. Verfahren zur Überführung von Naßphosphorsäure in eine nicht zu Ausfällungen neigende konzentrierte Phosphorsäure
AU499517B2 (en) * 1978-03-06 1979-04-26 W. R. Grace & Co Treating wet-process phosphoric acid
US4311681A (en) 1980-05-19 1982-01-19 Fmc Corporation Method of regenerating phosphoric acid extraction solvent
DE3913853A1 (de) * 1989-04-27 1990-10-31 Hoechst Ag Verfahren zur aufarbeitung von phosphorsaeure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123785A (en) * 1936-03-02 1938-07-12 Victor Chemical Works Removal of fluorine from phosphoric acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718729A (en) * 1971-03-15 1973-02-27 American Cyanamid Co Defluorination of wet process phosphoric acid

Also Published As

Publication number Publication date
NL6413920A (nl) 1966-05-31
GB1127247A (en) 1968-09-18
FI45315B (nl) 1972-01-31
SE319757C (nl) 1975-06-30
JPS4811475B1 (nl) 1973-04-13
FI45315C (fi) 1972-05-10
DE1287053B (de) 1969-01-16
NL151045B (nl) 1976-10-15
SE319757B (nl) 1970-01-26
BE672707A (nl) 1966-03-16
DE1287053C2 (de) 1973-12-20
DK109385C (da) 1968-04-22

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