FI45315C - Method for removing fluorine from phosphoric acid. - Google Patents

Method for removing fluorine from phosphoric acid.

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
Finnish (fi)
Swedish (sv)
Other versions
FI45315B (en
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/en

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)
FI287765A 1964-11-30 1965-11-29 Method for removing fluorine from phosphoric acid. FI45315C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6413920A NL151045B (en) 1964-11-30 1964-11-30 METHOD FOR THE REMOVAL OF FLUOR FROM PHOSPHORIC ACID.

Publications (2)

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

Family

ID=19791540

Family Applications (1)

Application Number Title Priority Date Filing Date
FI287765A FI45315C (en) 1964-11-30 1965-11-29 Method for removing fluorine from phosphoric acid.

Country Status (9)

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

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 (en) * 1976-05-06 1986-10-02 W.R. Grace & Co., New York, N.Y. Process for converting wet phosphoric acid into a concentrated phosphoric acid which does not tend to precipitate
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 (en) * 1989-04-27 1990-10-31 Hoechst Ag METHOD FOR PROCESSING PHOSPHORIC ACID

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

Similar Documents

Publication Publication Date Title
DK120424B (en) Method for cleaning metal-containing equipment.
DK108207C (en) Process for the production of acid phytase.
DK111113B (en) Process for the preparation of 3-methylflavone-8-carboxylic acid.
DK120423B (en) Anhydrous phosphating solution and method for its use.
FI45315C (en) Method for removing fluorine from phosphoric acid.
DK114129B (en) Process for the preparation of O, O-dialkylthionophosphoric acid chlorides.
NL151320B (en) METHOD FOR PURIFYING PHOSPHORIC ACID.
DK112941B (en) Process for the continuous preparation of o-phthalic acid diesters.
DK114337B (en) Method for concentrating and purifying wet process phosphoric acid.
DK108729C (en) Method for purifying erythromycin.
DK116127B (en) Process for purifying alkyl esters of α- (0,0-dimethyldithiophosphoryl) -α-phenylacetic acid.
FI47175C (en) Method and apparatus for the production of concentrated nitric acid.
DK121162B (en) Process for the production of phosphoric acid and gypsum.
DK113042B (en) Connectors for pipes or similar rod-shaped members.
DK116275B (en) Process for concentrating phosphoric acid.
FI41151C (en) Method for recovering hydrofluoric acid from hydrofluoric acid
DK113080B (en) Process for the preparation of the monophosphoric acid ester of hexachlorophen or its salts.
DK113211B (en) Method for treating green malt.
DK123105B (en) Process for the preparation of O-alkylthionphosphonic acid halides.
DK113219B (en) Process for the preparation of phosphoric acid alkylamides.
AU286427B2 (en) Method for purifying phosphoric acid
IS649B6 (en) Method for producing L-glutamic acid.
DK117372B (en) Procedure for pickling.
CA698494A (en) Method for recovering phosphoric acid anhydride
DK103021C (en) Method for purifying ɛ-caprolactam.