MA19037A1 - Methode de reduction par oxydation de la poste-precipitation lors de la preparation de l'acide phosphorique . - Google Patents

Methode de reduction par oxydation de la poste-precipitation lors de la preparation de l'acide phosphorique .

Info

Publication number: MA19037A1
Authority: MA; Morocco
Prior art keywords: post; preparation; phosphoric acid; reduction method; oxidation reduction
Prior art date: 1980-01-10

Application number

MA19238A

Other languages

English (en)

Inventor

Newton Hill Richard

Gali Sanchez Moises

Original Assignee

Grace W R & 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.)

1980-01-10

Filing date

1981-01-06

Publication date

1981-10-01

1981-01-06 Application filed by Grace W R & Co filed Critical Grace W R & Co

1981-10-01 Publication of MA19037A1 publication Critical patent/MA19037A1/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
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
- C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Silicates, Zeolites, And Molecular Sieves (AREA)

MA19238A 1980-01-10 1981-01-06 Methode de reduction par oxydation de la poste-precipitation lors de la preparation de l'acide phosphorique . MA19037A1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/111,013 US4279877A (en)	1980-01-10	1980-01-10	Oxidative control of post precipitation in phosphoric acid

Publications (1)

Publication Number	Publication Date
MA19037A1 true MA19037A1 (fr)	1981-10-01

Family

ID=22336155

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
MA19238A MA19037A1 (fr)	1980-01-10	1981-01-06	Methode de reduction par oxydation de la poste-precipitation lors de la preparation de l'acide phosphorique .

Country Status (9)

Country	Link
US (1)	US4279877A (fr)
JP (1)	JPS56100118A (fr)
BR (1)	BR8008447A (fr)
CA (1)	CA1130535A (fr)
DE (1)	DE3045890A1 (fr)
IT (1)	IT1195766B (fr)
MA (1)	MA19037A1 (fr)
NL (1)	NL8005924A (fr)
ZA (1)	ZA806604B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4430313A (en)	1980-08-11	1984-02-07	Mobil Oil Corporation	Shipping black phosphoric acid
US4439407A (en) *	1983-01-19	1984-03-27	Agrico Chemical Company	Method for improving filterability of gypsum and wet process phosphoric acid
US4487750A (en) *	1983-08-01	1984-12-11	Freeport Minerals Company	Stabilization of wet process phosphoric acid
US4710366A (en) *	1986-10-23	1987-12-01	Freeport Minerals Company	Method for producing stabilized wet process phosphoric acid with low content of magnesium and aluminum
US5236679A (en) *	1992-05-06	1993-08-17	Freeport-Mcmoran Resource Partners	Removal of aluminum contamination during production of phosphoric acid
CN103569988B (zh) *	2012-07-31	2015-10-14	东莞市长安东阳光铝业研发有限公司	正磷酸铁的制备方法
EP3216756A1 (fr) *	2016-03-08	2017-09-13	ATOTECH Deutschland GmbH	Procédé pour récupérer de l'acide phosphorique à partir d'une solution de gravure acide phosphorique / sel de permanganate de métal alcalin usagée

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA617322A (en)		1961-03-28	W. Harwood William	Process for producing clarified phosphoric acid
US2799557A (en) *	1952-10-11	1957-07-16	Chemical Construction Corp	Production of feed grade dicalcium phosphate
US2968528A (en) *	1957-07-01	1961-01-17	Int Minerals & Chem Corp	Process for producing clarified phosphoric acid
US3206282A (en) *	1962-02-20	1965-09-14	Allied Chem	Removal of soluble after-precipitate from concentrated phosphoric acid
GB1053929A (fr) *	1962-12-06
US3528771A (en) *	1967-10-10	1970-09-15	Int Minerals & Chem Corp	Phosphoric acid clarification
US3907680A (en) *	1973-11-06	1975-09-23	Sr Richard N Hill	Clarification of aqueous acidic phosphatic solutions
US4048289A (en) *	1973-12-13	1977-09-13	Fertilizantes Fosfatados Mexicanos, S.A.	Stabilization of wet-process phosphoric acid
JPS5297394A (en) *	1976-02-13	1977-08-16	Toyo Soda Mfg Co Ltd	Removal of organic matter in phosphoric acid
DE2719701C3 (de) *	1976-05-06	1986-10-02	W.R. Grace & Co., New York, N.Y.	Verfahren zur Überführung von Naßphosphorsäure in eine nicht zu Ausfällungen neigende konzentrierte Phosphorsäure
CA1086475A (fr) *	1976-05-06	1980-09-30	Richard N. Hill	Production par voie humide d'acide phosphorique stabilise

1980
- 1980-01-10 US US06/111,013 patent/US4279877A/en not_active Expired - Lifetime
- 1980-10-24 IT IT25566/80A patent/IT1195766B/it active
- 1980-10-28 ZA ZA00806604A patent/ZA806604B/xx unknown
- 1980-10-29 NL NL8005924A patent/NL8005924A/nl not_active Application Discontinuation
- 1980-11-05 CA CA363,993A patent/CA1130535A/fr not_active Expired
- 1980-12-05 DE DE19803045890 patent/DE3045890A1/de not_active Withdrawn
- 1980-12-10 JP JP17333280A patent/JPS56100118A/ja active Pending
- 1980-12-22 BR BR8008447A patent/BR8008447A/pt unknown
1981
- 1981-01-06 MA MA19238A patent/MA19037A1/fr unknown

Also Published As

Publication number	Publication date
JPS56100118A (en)	1981-08-11
ZA806604B (en)	1981-11-25
IT8025566A0 (it)	1980-10-24
US4279877A (en)	1981-07-21
NL8005924A (nl)	1981-08-03
BR8008447A (pt)	1981-07-14
IT1195766B (it)	1988-10-27
CA1130535A (fr)	1982-08-31
DE3045890A1 (de)	1981-07-16

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