ES549773A0 - Procedimiento para la desarsenificacion de soluciones de acidos fosforicos - Google Patents

Procedimiento para la desarsenificacion de soluciones de acidos fosforicos

Info

Publication number: ES549773A0
Authority: ES; Spain
Prior art keywords: desarsenification; procedure; phosphoric acid; acid solutions; solutions
Prior art date: 1984-12-10
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.): Granted

Application number

ES549773A

Other languages

English (en)

Other versions

ES8605444A1 (es

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.)

Hoechst AG

Original Assignee

Hoechst AG

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.)

1984-12-10

Filing date

1985-12-10

Publication date

1986-04-01

1985-12-10 Application filed by Hoechst AG filed Critical Hoechst AG

1986-04-01 Publication of ES8605444A1 publication Critical patent/ES8605444A1/es

1986-04-01 Publication of ES549773A0 publication Critical patent/ES549773A0/es

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

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
- 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
- C01B25/238—Cationic impurities, e.g. arsenic compounds
- 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
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
- C01B25/308—Methods for converting an alkali metal orthophosphate into another one; Purification; Decolorasing; Dehydrating; Drying
- 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
- C01B25/46—Preparation involving solvent-solvent extraction
- C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Analytical Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Treatment Of Liquids With Adsorbents In General (AREA)
Removal Of Specific Substances (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

ES549773A 1984-12-10 1985-12-10 Procedimiento para la desarsenificacion de soluciones de acidos fosforicos Expired ES8605444A1 (es)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19843444975 DE3444975A1 (de)	1984-12-10	1984-12-10	Verfahren zur entarsenierung von phosphorsauren loesungen

Publications (2)

Publication Number	Publication Date
ES8605444A1 ES8605444A1 (es)	1986-04-01
ES549773A0 true ES549773A0 (es)	1986-04-01

Family

ID=6252363

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ES549773A Expired ES8605444A1 (es)	1984-12-10	1985-12-10	Procedimiento para la desarsenificacion de soluciones de acidos fosforicos

Country Status (9)

Country	Link
US (1)	US4668492A (es)
EP (1)	EP0184690B1 (es)
JP (1)	JPS61141607A (es)
CA (1)	CA1261115A (es)
DE (2)	DE3444975A1 (es)
ES (1)	ES8605444A1 (es)
IL (1)	IL77050A0 (es)
MA (1)	MA20585A1 (es)
ZA (1)	ZA859381B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4804526A (en) *	1987-10-13	1989-02-14	Fmc Corporation	Process for purifying phosphoric acid for electrical semiconductor use
US4824650A (en) *	1988-08-23	1989-04-25	Segrist Lloyd E	Method for extracting arsenic and heavy metals from phosphoric acid
CN102849698B (zh) *	2012-09-28	2014-07-16	凯恩德利(北京)科贸有限公司	高效磷酸除砷方法及装置
CN103979510A (zh) *	2014-04-25	2014-08-13	防城港博森化工有限公司	一种磷酸生产中的脱砷方法
CN109809378A (zh) *	2019-03-27	2019-05-28	重庆万盛川东化工有限公司	食品磷酸生产工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL295743A (es) *	1962-07-25
US3421845A (en) *	1965-06-07	1969-01-14	Hooker Chemical Corp	Production of sodium phosphates
JPS5018388A (es) *	1973-06-21	1975-02-26
IT1125158B (it) *	1976-11-19	1986-05-14	Sarda Off Mec	Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico
US4485078A (en) *	1982-03-16	1984-11-27	Agrico Chemical Company	Process for producing wet process phosphoric acid from phosphate rocks containing fluochlorapatite and related minerals
DE3421297A1 (de) *	1984-06-08	1985-12-12	Basf Ag, 6700 Ludwigshafen	Verfahren zur reduzierung des schwefelsaeuregehaltes und des gehaltes an verunreinigungen in nassverfahrensphosphorsaeure

1984
- 1984-12-10 DE DE19843444975 patent/DE3444975A1/de not_active Withdrawn
1985
- 1985-11-14 IL IL77050A patent/IL77050A0/xx not_active IP Right Cessation
- 1985-11-18 CA CA000495529A patent/CA1261115A/en not_active Expired
- 1985-11-19 EP EP85114684A patent/EP0184690B1/de not_active Expired - Lifetime
- 1985-11-19 DE DE8585114684T patent/DE3577431D1/de not_active Expired - Fee Related
- 1985-11-26 US US06/801,737 patent/US4668492A/en not_active Expired - Fee Related
- 1985-12-05 MA MA20811A patent/MA20585A1/fr unknown
- 1985-12-09 ZA ZA859381A patent/ZA859381B/xx unknown
- 1985-12-10 ES ES549773A patent/ES8605444A1/es not_active Expired
- 1985-12-10 JP JP60276182A patent/JPS61141607A/ja active Pending

Also Published As

Publication number	Publication date
ES8605444A1 (es)	1986-04-01
EP0184690A3 (en)	1988-03-23
EP0184690B1 (de)	1990-05-02
DE3444975A1 (de)	1986-06-12
DE3577431D1 (de)	1990-06-07
IL77050A0 (en)	1986-04-29
US4668492A (en)	1987-05-26
MA20585A1 (fr)	1986-07-01
ZA859381B (en)	1986-08-27
JPS61141607A (ja)	1986-06-28
CA1261115A (en)	1989-09-26
EP0184690A2 (de)	1986-06-18

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Legal Events

Date	Code	Title	Description
1997-03-16	FD1A	Patent lapsed	Effective date: 19970203