IT1109503B - Processo per il trattamento di acido fosforico ottenuto mediante processo a umido - Google Patents

Processo per il trattamento di acido fosforico ottenuto mediante processo a umido

Info

Publication number: IT1109503B
Authority: IT; Italy
Prior art keywords: treatment; phosphoric acid; acid obtained; wet; wet process
Prior art date: 1978-03-06

Application number

IT23108/78A

Other languages

English (en)

Other versions

IT7823108A0 (it

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.)

1978-03-06

Filing date

1978-05-05

Publication date

1985-12-16

1978-03-06 Priority claimed from US05/883,381 external-priority patent/US4164550A/en

1978-05-05 Application filed by Grace W R & Co filed Critical Grace W R & Co

1978-05-05 Publication of IT7823108A0 publication Critical patent/IT7823108A0/it

1985-12-16 Application granted granted Critical

1985-12-16 Publication of IT1109503B publication Critical patent/IT1109503B/it

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
- C01B25/235—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)
Separation Of Suspended Particles By Flocculating Agents (AREA)

IT23108/78A 1978-03-06 1978-05-05 Processo per il trattamento di acido fosforico ottenuto mediante processo a umido IT1109503B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/883,381 US4164550A (en)	1976-05-06	1978-03-06	Production of stabilized wet process phosphoric acid

Publications (2)

Publication Number	Publication Date
IT7823108A0 IT7823108A0 (it)	1978-05-05
IT1109503B true IT1109503B (it)	1985-12-16

Family

ID=25382470

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT23108/78A IT1109503B (it)	1978-03-06	1978-05-05	Processo per il trattamento di acido fosforico ottenuto mediante processo a umido

Country Status (8)

Country	Link
JP (1)	JPS54118396A (it)
AU (1)	AU499517B2 (it)
BR (1)	BR7803039A (it)
DE (1)	DE2818728C3 (it)
IT (1)	IT1109503B (it)
MX (1)	MX148659A (it)
NL (1)	NL7805162A (it)
ZA (1)	ZA782579B (it)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA776577A (en) *		1968-01-23	G. Brown Martin	Production of phosphoric acid and gypsum
CA463505A (en) *		1950-03-07	R. Singer Marshall	Manufacture of phosphoric acid
CA637832A (en) *		1962-03-06	American Cyanamid Company	Phosphoric acid preparation
US2883266A (en) *	1956-06-29	1959-04-21	Swift & Co	Production of sodium silico fluoride and fluorine-free phosphoric acid
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
US3141734A (en) *	1960-10-25	1964-07-21	Int Minerals & Chem Corp	Method of clarifying acidic phosphatic solutions
US3160495A (en) *	1961-03-28	1964-12-08	Minerals & Chem Philipp Corp	Wet process phosphoric acid and liquid fertilizer compositions containing the same
US3193351A (en) *	1961-07-05	1965-07-06	Nat Distillers Chem Corp	Removal of fluorine from wet process prosphoric acid
NL131991C (it) *	1962-11-09
GB1113922A (en) *	1964-08-19	1968-05-15	Fisons Ltd	Clarifying phosphoric acid
NL151045B (nl) *	1964-11-30	1976-10-15	Windmill Holland Bv	Werkwijze voor het verwijderen van fluor uit fosforzuur.
US3528771A (en) *	1967-10-10	1970-09-15	Int Minerals & Chem Corp	Phosphoric acid clarification
CA1042180A (en) *	1973-12-13	1978-11-14	Sergio O. Pierres	Stabilization of wet process 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

1978
- 1978-04-27 AU AU35531/78A patent/AU499517B2/en not_active Expired
- 1978-04-28 DE DE2818728A patent/DE2818728C3/de not_active Expired
- 1978-05-05 IT IT23108/78A patent/IT1109503B/it active
- 1978-05-05 ZA ZA00782579A patent/ZA782579B/xx unknown
- 1978-05-10 MX MX173415A patent/MX148659A/es unknown
- 1978-05-12 JP JP5569478A patent/JPS54118396A/ja active Granted
- 1978-05-12 NL NL7805162A patent/NL7805162A/xx active Search and Examination
- 1978-05-15 BR BR7803039A patent/BR7803039A/pt unknown

Also Published As

Publication number	Publication date
JPS6149243B2 (it)	1986-10-28
NL7805162A (nl)	1979-09-10
DE2818728B2 (de)	1980-01-24
DE2818728A1 (de)	1979-09-13
BR7803039A (pt)	1979-11-27
ZA782579B (en)	1979-04-25
AU499517B2 (en)	1979-04-26
MX148659A (es)	1983-05-26
JPS54118396A (en)	1979-09-13
IT7823108A0 (it)	1978-05-05
DE2818728C3 (de)	1988-02-11

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