FI45315C - Menetelmä fluorin poistamiseksi fosforihaposta. - Google Patents

Menetelmä fluorin poistamiseksi fosforihaposta.

Info

Publication number
FI45315C
FI45315C FI287765A FI287765A FI45315C FI 45315 C FI45315 C FI 45315C FI 287765 A FI287765 A FI 287765A FI 287765 A FI287765 A FI 287765A FI 45315 C FI45315 C FI 45315C
Authority
FI
Finland
Prior art keywords
phosphoric acid
removing fluorine
fluorine
phosphoric
acid
Prior art date
Application number
FI287765A
Other languages
English (en)
Swedish (sv)
Other versions
FI45315B (fi
Inventor
Boer Hermanus
Original Assignee
Windmill Holland N V
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 Windmill Holland N V filed Critical Windmill Holland N V
Publication of FI45315B publication Critical patent/FI45315B/fi
Application granted granted Critical
Publication of FI45315C publication Critical patent/FI45315C/fi

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)
  • Removal Of Specific Substances (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FI287765A 1964-11-30 1965-11-29 Menetelmä fluorin poistamiseksi fosforihaposta. FI45315C (fi)

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 (2)

Publication Number Publication Date
FI45315B FI45315B (fi) 1972-01-31
FI45315C true FI45315C (fi) 1972-05-10

Family

ID=19791540

Family Applications (1)

Application Number Title Priority Date Filing Date
FI287765A FI45315C (fi) 1964-11-30 1965-11-29 Menetelmä fluorin poistamiseksi fosforihaposta.

Country Status (9)

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

Families Citing this family (5)

* 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
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

Also Published As

Publication number Publication date
DK109385C (da) 1968-04-22
GB1127247A (en) 1968-09-18
JPS4811475B1 (fi) 1973-04-13
FR1456263A (fr) 1966-10-21
SE319757C (fi) 1975-06-12
NL6413920A (fi) 1966-05-31
FI45315B (fi) 1972-01-31
SE319757B (fi) 1970-01-26
NL151045B (nl) 1976-10-15
DE1287053C2 (de) 1973-12-20
BE672707A (fi) 1966-03-16
DE1287053B (de) 1969-01-16

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