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ZA806604B - Oxidative control of post precipitation in phosphoric acid - Google Patents

Oxidative control of post precipitation in phosphoric acid

Info

Publication number
ZA806604B
ZA806604B ZA00806604A ZA806604A ZA806604B ZA 806604 B ZA806604 B ZA 806604B ZA 00806604 A ZA00806604 A ZA 00806604A ZA 806604 A ZA806604 A ZA 806604A ZA 806604 B ZA806604 B ZA 806604B
Authority
ZA
South Africa
Prior art keywords
phosphoric acid
post precipitation
oxidative control
oxidative
control
Prior art date
Application number
ZA00806604A
Other languages
English (en)
Inventor
M Sanchez
R Hill
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.)
Filing date
Publication date
Application filed by Grace W R & Co filed Critical Grace W R & Co
Publication of ZA806604B publication Critical patent/ZA806604B/xx

Links

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)
ZA00806604A 1980-01-10 1980-10-28 Oxidative control of post precipitation in phosphoric acid ZA806604B (en)

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
ZA806604B true ZA806604B (en) 1981-11-25

Family

ID=22336155

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00806604A ZA806604B (en) 1980-01-10 1980-10-28 Oxidative control of post precipitation in phosphoric acid

Country Status (9)

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

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 (en) * 2016-03-08 2017-09-13 ATOTECH Deutschland GmbH Method for recovering phosphoric acid from a spent phosphoric acid / alkali metal permanganate salt etching solution

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 (xx) * 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 (en) * 1976-05-06 1980-09-30 Richard N. Hill Production of stabilized wet process phosphoric acid

Also Published As

Publication number Publication date
IT8025566A0 (it) 1980-10-24
US4279877A (en) 1981-07-21
NL8005924A (nl) 1981-08-03
IT1195766B (it) 1988-10-27
CA1130535A (en) 1982-08-31
DE3045890A1 (de) 1981-07-16
JPS56100118A (en) 1981-08-11
MA19037A1 (fr) 1981-10-01
BR8008447A (pt) 1981-07-14

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