AU499517B2 - Treating wet-process phosphoric acid - Google Patents

Treating wet-process phosphoric acid

Info

Publication number: AU499517B2
Authority: AU; Australia
Prior art keywords: phosphoric acid; process phosphoric; treating wet; wet; treating
Prior art date: 1978-03-06
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.): Expired

Application number

AU35531/78A

Other versions

AU3553178A (en

Inventor

R. N Hill

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.)

WR Grace and Co

Original Assignee

WR Grace and 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

1978-04-27

Publication date

1979-04-26

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

1978-04-27 Application filed by WR Grace and Co filed Critical WR Grace and Co

1979-04-26 Application granted granted Critical

1979-04-26 Publication of AU3553178A publication Critical patent/AU3553178A/en

1979-04-26 Publication of AU499517B2 publication Critical patent/AU499517B2/en

Status Expired legal-status Critical Current

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)

AU35531/78A 1978-03-06 1978-04-27 Treating wet-process phosphoric acid Expired AU499517B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
USUS883381		1978-03-06
US05/883,381 US4164550A (en)	1976-05-06	1978-03-06	Production of stabilized wet process phosphoric acid

Publications (2)

Publication Number	Publication Date
AU3553178A AU3553178A (en)	1979-04-26
AU499517B2 true AU499517B2 (en)	1979-04-26

Family

ID=25382470

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU35531/78A Expired AU499517B2 (en)	1978-03-06	1978-04-27	Treating wet-process phosphoric acid

Country Status (8)

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

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 (en) *	1962-11-09
GB1113922A (en) *	1964-08-19	1968-05-15	Fisons Ltd	Clarifying phosphoric acid
NL151045B (en) *	1964-11-30	1976-10-15	Windmill Holland Bv	METHOD FOR THE REMOVAL OF FLUOR FROM PHOSPHORIC ACID.
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 (en) *	1976-05-06	1986-10-02	W.R. Grace & Co., New York, N.Y.	Process for converting wet phosphoric acid into a concentrated phosphoric acid which does not tend to precipitate

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

Also Published As

Publication number	Publication date
JPS6149243B2 (en)	1986-10-28
ZA782579B (en)	1979-04-25
DE2818728C3 (en)	1988-02-11
BR7803039A (en)	1979-11-27
JPS54118396A (en)	1979-09-13
DE2818728B2 (en)	1980-01-24
IT7823108A0 (en)	1978-05-05
MX148659A (en)	1983-05-26
DE2818728A1 (en)	1979-09-13
IT1109503B (en)	1985-12-16
NL7805162A (en)	1979-09-10

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