AU462975B2 - Defluorination of wet process phosphoric acid - Google Patents

Defluorination of wet process phosphoric acid

Info

Publication number: AU462975B2
Authority: AU; Australia
Prior art keywords: defluorination; phosphoric acid; wet process; process phosphoric; wet
Prior art date: 1971-03-15
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.)

1971-03-15

Filing date

1972-02-04

Publication date

1975-06-26

1972-02-04 Application filed by American Cyanamid Co filed Critical American Cyanamid Co

1973-08-09 Publication of AU3865272A publication Critical patent/AU3865272A/en

1975-06-26 Application granted granted Critical

1975-06-26 Publication of AU462975B2 publication Critical patent/AU462975B2/en

Status Expired legal-status Critical Current

Links

NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title 2
229910000147 aluminium phosphate Inorganic materials 0.000 title 1
238000006115 defluorination reaction Methods 0.000 title 1
238000000034 method Methods 0.000 title 1

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)
Removal Of Specific Substances (AREA)
Processing Of Solid Wastes (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
US4083937A (en) *	1974-07-09	1978-04-11	Toyo Soda Manufacturing Co., Ltd.	Process for preparing pure phosphoric acid
JPS516894A (en) *	1974-07-09	1976-01-20	Toyo Soda Mfg Co Ltd	Seiseirinsanno seizoho
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.

1971
- 1971-03-15 US US00124099A patent/US3718729A/en not_active Expired - Lifetime
- 1971-09-02 BR BR5809/71A patent/BR7105809D0/en unknown
1972
- 1972-02-01 ZA ZA720647A patent/ZA72647B/en unknown
- 1972-02-04 AU AU38652/72A patent/AU462975B2/en not_active Expired
- 1972-02-09 GB GB599772A patent/GB1383832A/en not_active Expired
- 1972-03-07 IT IT48817/72A patent/IT954349B/en active
- 1972-03-15 DE DE19722212576 patent/DE2212576A1/en active Pending
- 1972-03-15 ES ES400819A patent/ES400819A1/en not_active Expired
- 1972-03-15 FR FR7209088A patent/FR2130302B1/fr not_active Expired

Also Published As

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

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