IL97809A0 - Process for the preparation of alkali metal phosphate solutions - Google Patents

Process for the preparation of alkali metal phosphate solutions

Info

Publication number: IL97809A0
Authority: IL; Israel
Prior art keywords: preparation; alkali metal; metal phosphate; phosphate solutions; solutions
Prior art date: 1990-04-11

Application number

IL97809A

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.)

1990-04-11

Filing date

1991-04-09

Publication date

1992-06-21

1991-04-09 Application filed by Hoechst Ag filed Critical Hoechst Ag

1992-06-21 Publication of IL97809A0 publication Critical patent/IL97809A0/xx

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
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
- C01B25/308—Methods for converting an alkali metal orthophosphate into another one; Purification; Decolorasing; Dehydrating; Drying

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Removal Of Specific Substances (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

IL97809A 1990-04-11 1991-04-09 Process for the preparation of alkali metal phosphate solutions IL97809A0 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE4011716A DE4011716A1 (de)	1990-04-11	1990-04-11	Verfahren zur herstellung von alkaliphosphatloesungen

Publications (1)

Publication Number	Publication Date
IL97809A0 true IL97809A0 (en)	1992-06-21

Family

ID=6404213

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IL97809A IL97809A0 (en)	1990-04-11	1991-04-09	Process for the preparation of alkali metal phosphate solutions

Country Status (12)

Country	Link
US (1)	US5124137A (pt)
EP (1)	EP0451511B1 (pt)
JP (1)	JPH04224106A (pt)
BR (1)	BR9101428A (pt)
CA (1)	CA2038586A1 (pt)
DE (2)	DE4011716A1 (pt)
ES (1)	ES2055478T3 (pt)
IL (1)	IL97809A0 (pt)
MA (1)	MA22114A1 (pt)
PH (1)	PH27595A (pt)
TR (1)	TR24863A (pt)
ZA (1)	ZA912645B (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102014006278B3 (de) *	2014-05-02	2015-02-26	Remondis Aqua Gmbh & Co. Kg	Verfahren zur Reinigung von Roh-Phosphorsäure (z.B. MGA-Säure) durch Zugabe von Aschen aus Abfall-Verbrennungsanlagen umfassend die Gewinnung von reiner Phosphorsäure, Kalziumsulfat, wasserlöslichen Kalziumhydrogenphosphaten und Metallsalz-Lösung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2053319A (en) *	1934-06-07	1936-09-08	Blockson Chemical Co	Purifying treatment for alkali metal phosphate solutions
US2954275A (en) *	1958-01-15	1960-09-27	John N Carothers	Process of recovering fluorine from phosphate rock
US3305304A (en) *	1962-11-23	1967-02-21	Hooker Chemical Corp	Purification of phosphorus-containing solutions
US3493336A (en) *	1964-06-18	1970-02-03	Electric Reduction Co	Manufacture of alkali metal phosphates
DE2035505C3 (de) *	1970-07-17	1974-06-12	Knapsack Ag, 5033 Huerth-Knapsack	Verfahren zur Herstellung reiner Alkaliphosphatlösungen
US4086322A (en) *	1974-10-07	1978-04-25	Pennzoil Company	Production of fluoride-free phosphates
US4053561A (en) *	1975-08-14	1977-10-11	Stauffer Chemical Company	Removal of fluorine from phosphatic solutions
DE3322503A1 (de) *	1983-06-23	1985-01-10	Hoechst Ag, 6230 Frankfurt	Verfahren zur entfluorierung von alkaliphosphatloesungen
EP0181029B1 (fr) *	1984-11-05	1991-06-12	Prayon Développement Société anonyme	Procédé continu de préparation d'acide phosphorique et de sulfate de calcium

1990
- 1990-04-11 DE DE4011716A patent/DE4011716A1/de not_active Withdrawn
1991
- 1991-03-09 ES ES91103655T patent/ES2055478T3/es not_active Expired - Lifetime
- 1991-03-09 EP EP91103655A patent/EP0451511B1/de not_active Expired - Lifetime
- 1991-03-09 DE DE59101638T patent/DE59101638D1/de not_active Expired - Fee Related
- 1991-03-19 CA CA002038586A patent/CA2038586A1/en not_active Abandoned
- 1991-03-28 US US07/676,862 patent/US5124137A/en not_active Expired - Fee Related
- 1991-04-02 PH PH42243A patent/PH27595A/en unknown
- 1991-04-05 MA MA22383A patent/MA22114A1/fr unknown
- 1991-04-09 JP JP3076464A patent/JPH04224106A/ja not_active Withdrawn
- 1991-04-09 IL IL97809A patent/IL97809A0/xx unknown
- 1991-04-09 TR TR91/0326A patent/TR24863A/xx unknown
- 1991-04-10 BR BR919101428A patent/BR9101428A/pt not_active Application Discontinuation
- 1991-04-10 ZA ZA912645A patent/ZA912645B/xx unknown

Also Published As

Publication number	Publication date
JPH04224106A (ja)	1992-08-13
DE59101638D1 (de)	1994-06-23
BR9101428A (pt)	1991-11-26
ES2055478T3 (es)	1994-08-16
EP0451511B1 (de)	1994-05-18
TR24863A (tr)	1992-07-01
EP0451511A1 (de)	1991-10-16
US5124137A (en)	1992-06-23
CA2038586A1 (en)	1991-10-12
MA22114A1 (fr)	1991-12-31
ZA912645B (en)	1992-01-29
PH27595A (en)	1993-08-31
DE4011716A1 (de)	1991-10-17

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