AU462975B2 - Defluorination of wet process phosphoric acid - Google Patents

Defluorination of wet process phosphoric acid

Info

Publication number
AU462975B2
AU462975B2 AU38652/72A AU3865272A AU462975B2 AU 462975 B2 AU462975 B2 AU 462975B2 AU 38652/72 A AU38652/72 A AU 38652/72A AU 3865272 A AU3865272 A AU 3865272A AU 462975 B2 AU462975 B2 AU 462975B2
Authority
AU
Australia
Prior art keywords
defluorination
phosphoric acid
wet process
process phosphoric
wet
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
AU38652/72A
Other versions
AU3865272A (en
Inventor
BABUBHAI AMIN and ROBERTT. ee BRISTOW ASHOK
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.)
Wyeth Holdings LLC
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 AU3865272A publication Critical patent/AU3865272A/en
Application granted granted Critical
Publication of AU462975B2 publication Critical patent/AU462975B2/en
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
    • 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)
AU38652/72A 1971-03-15 1972-02-04 Defluorination of wet process phosphoric acid Expired AU462975B2 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
AU3865272A AU3865272A (en) 1973-08-09
AU462975B2 true AU462975B2 (en) 1975-06-26

Family

ID=22412766

Family Applications (1)

Application Number Title Priority Date Filing Date
AU38652/72A Expired AU462975B2 (en) 1971-03-15 1972-02-04 Defluorination of wet process phosphoric acid

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
DE2212576A1 (en) 1972-09-21
ES400819A1 (en) 1975-02-01
FR2130302A1 (en) 1972-11-03
US3718729A (en) 1973-02-27
GB1383832A (en) 1974-02-12
AU3865272A (en) 1973-08-09
BR7105809D0 (en) 1973-04-05
FR2130302B1 (en) 1977-07-15
ZA72647B (en) 1972-10-25
IT954349B (en) 1973-08-30

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