MA21185A1 - Procede de preparation d'acide phosphorique exempt de titane. - Google Patents

Procede de preparation d'acide phosphorique exempt de titane.

Info

Publication number: MA21185A1
Authority: MA; Morocco
Prior art keywords: preparation; phosphoric acid; free phosphoric; titanium free; titanium
Prior art date: 1987-02-18

Application number

MA21422A

Other languages

English (en)

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.)

1987-02-18

Filing date

1988-02-16

Publication date

1988-10-01

1988-02-16 Application filed by Hoechst Ag filed Critical Hoechst Ag

1988-10-01 Publication of MA21185A1 publication Critical patent/MA21185A1/fr

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
- C01B25/46—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
- C01B25/462—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 the extracting agent being alcohol or a mixture of alcohols
- 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)
Analytical Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Inorganic Chemistry (AREA)
Extraction Or Liquid Replacement (AREA)
Manufacture And Refinement Of Metals (AREA)
Inorganic Compounds Of Heavy Metals (AREA)
Catalysts (AREA)
Materials For Medical Uses (AREA)

MA21422A 1987-02-18 1988-02-16 Procede de preparation d'acide phosphorique exempt de titane. MA21185A1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19873705069 DE3705069A1 (de)	1987-02-18	1987-02-18	Verfahren zur herstellung titanfreier phosphorsaeure

Publications (1)

Publication Number	Publication Date
MA21185A1 true MA21185A1 (fr)	1988-10-01

Family

ID=6321207

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
MA21422A MA21185A1 (fr)	1987-02-18	1988-02-16	Procede de preparation d'acide phosphorique exempt de titane.

Country Status (8)

Country	Link
US (1)	US4806324A (fr)
EP (1)	EP0279187A3 (fr)
JP (1)	JPS63206308A (fr)
BR (1)	BR8800625A (fr)
DE (1)	DE3705069A1 (fr)
IL (1)	IL85443A0 (fr)
MA (1)	MA21185A1 (fr)
ZA (1)	ZA881095B (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3529932A (en) *	1966-10-31	1970-09-22	Toyo Soda Mfg Co Ltd	Process for removing titanium from titanium-containing phosphoric acid
BE757550A (fr) *	1969-10-16	1971-03-16	Giulini Gmbh Geb	Procede de preparation de phosphates purs a partir d'acides phosphoriques impurs
US4018869A (en) *	1973-06-06	1977-04-19	Chemische Fabrik Budenheim Rudolf A. Oetker	Process for the extractive purification of phosphoric acid containing cationic impurities
DE2433307C3 (de) *	1974-07-11	1984-03-22	Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim	Verfahren zur Abtrennung eines Phosphorsäure-organisches Lösungsmittel-Wasser-Gemisches
DE2538720C2 (de) *	1975-08-30	1982-11-18	Giulini Chemie Gmbh, 6700 Ludwigshafen	Verfahren zur Reinigung von Naßverfahrensphosphorsäure
CA1075878A (fr) *	1975-08-30	1980-04-22	Egon Cherdron	Methode de purification des phosphates
FR2447348A1 (fr) *	1979-01-24	1980-08-22	Rhone Poulenc Ind	Procede de purification d'un acide phosphorique impur

1987
- 1987-02-18 DE DE19873705069 patent/DE3705069A1/de not_active Withdrawn
1988
- 1988-01-19 EP EP88100668A patent/EP0279187A3/fr not_active Withdrawn
- 1988-02-05 US US07/152,751 patent/US4806324A/en not_active Expired - Fee Related
- 1988-02-12 BR BR8800625A patent/BR8800625A/pt unknown
- 1988-02-15 JP JP63031040A patent/JPS63206308A/ja active Pending
- 1988-02-16 MA MA21422A patent/MA21185A1/fr unknown
- 1988-02-17 ZA ZA881095A patent/ZA881095B/xx unknown
- 1988-02-17 IL IL85443A patent/IL85443A0/xx unknown

Also Published As

Publication number	Publication date
BR8800625A (pt)	1988-09-27
EP0279187A3 (fr)	1989-03-22
DE3705069A1 (de)	1988-09-01
ZA881095B (en)	1988-08-12
JPS63206308A (ja)	1988-08-25
IL85443A0 (en)	1988-07-31
US4806324A (en)	1989-02-21
EP0279187A2 (fr)	1988-08-24

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