BR7105809D0 - PROCESS FOR DEFLUORATION OF PHOSPHORIC ACID PREPARED BY WET - Google Patents

PROCESS FOR DEFLUORATION OF PHOSPHORIC ACID PREPARED BY WET

Info

Publication number
BR7105809D0
BR7105809D0 BR5809/71A BR580971A BR7105809D0 BR 7105809 D0 BR7105809 D0 BR 7105809D0 BR 5809/71 A BR5809/71 A BR 5809/71A BR 580971 A BR580971 A BR 580971A BR 7105809 D0 BR7105809 D0 BR 7105809D0
Authority
BR
Brazil
Prior art keywords
defluoration
wet
phosphoric acid
acid prepared
prepared
Prior art date
Application number
BR5809/71A
Other languages
Portuguese (pt)
Inventor
A Amin
R Bristow
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of BR7105809D0 publication Critical patent/BR7105809D0/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
    • 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)
  • Silicon Compounds (AREA)
  • Processing Of Solid Wastes (AREA)
  • Removal Of Specific Substances (AREA)
BR5809/71A 1971-03-15 1971-09-02 PROCESS FOR DEFLUORATION OF PHOSPHORIC ACID PREPARED BY WET BR7105809D0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12409971A 1971-03-15 1971-03-15

Publications (1)

Publication Number Publication Date
BR7105809D0 true BR7105809D0 (en) 1973-04-05

Family

ID=22412766

Family Applications (1)

Application Number Title Priority Date Filing Date
BR5809/71A BR7105809D0 (en) 1971-03-15 1971-09-02 PROCESS FOR DEFLUORATION OF PHOSPHORIC ACID PREPARED BY WET

Country Status (9)

Country Link
US (1) US3718729A (en)
AU (1) AU462975B2 (en)
BR (1) BR7105809D0 (en)
DE (1) DE2212576A1 (en)
ES (1) ES400819A1 (en)
FR (1) FR2130302B1 (en)
GB (1) GB1383832A (en)
IT (1) IT954349B (en)
ZA (1) ZA72647B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516894A (en) * 1974-07-09 1976-01-20 Toyo Soda Mfg Co Ltd Seiseirinsanno seizoho
US4083937A (en) * 1974-07-09 1978-04-11 Toyo Soda Manufacturing Co., Ltd. Process for preparing pure phosphoric acid
FR2302275A1 (en) * 1975-02-25 1976-09-24 Prorea PROCESS FOR SIMULTANEOUS CONCENTRATION AND DEPURATION OF PHOSPHORIC ACID
DE2938850B1 (en) * 1979-09-26 1980-06-26 Uhde Gmbh Process for the defluorination of phosphoric acid
US4377560A (en) * 1981-07-13 1983-03-22 Occidental Research Corporation Process for producing low aluminum content phosphoric acid from high aluminum matrix
US5002744A (en) * 1990-05-11 1991-03-26 Imc Fertilizer, Inc. Method for defluorinating wet process phosphoric acid
US5236679A (en) * 1992-05-06 1993-08-17 Freeport-Mcmoran Resource Partners Removal of aluminum contamination during production of phosphoric acid
CN110467166A (en) * 2019-09-20 2019-11-19 瓮福达州化工有限责任公司 A kind of wet defluorination of phosphoric acid method
CN115285954B (en) * 2022-08-12 2023-10-27 宜都兴发化工有限公司 Method for improving fluorine yield of wet-process phosphoric acid production concentration section

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933372A (en) * 1956-11-02 1960-04-19 Int Minerals & Chem Corp Method of defluorinating phosphatic material
US2987376A (en) * 1956-12-27 1961-06-06 Int Minerals & Chem Corp Method for defluorination of phosphoric acid
US3151941A (en) * 1960-05-02 1964-10-06 Smith Douglass Company Inc Defluorination of peosphoric acid
US3193351A (en) * 1961-07-05 1965-07-06 Nat Distillers Chem Corp Removal of fluorine from wet process prosphoric acid
NL151045B (en) * 1964-11-30 1976-10-15 Windmill Holland Bv METHOD FOR THE REMOVAL OF FLUOR FROM PHOSPHORIC ACID.

Also Published As

Publication number Publication date
AU3865272A (en) 1973-08-09
GB1383832A (en) 1974-02-12
FR2130302B1 (en) 1977-07-15
US3718729A (en) 1973-02-27
IT954349B (en) 1973-08-30
ZA72647B (en) 1972-10-25
ES400819A1 (en) 1975-02-01
AU462975B2 (en) 1975-06-26
DE2212576A1 (en) 1972-09-21
FR2130302A1 (en) 1972-11-03

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