MA20193A1 - Stabilisation de l'acide phosphorique obtenu par voie humide. - Google Patents

Stabilisation de l'acide phosphorique obtenu par voie humide.

Info

Publication number
MA20193A1
MA20193A1 MA20417A MA20417A MA20193A1 MA 20193 A1 MA20193 A1 MA 20193A1 MA 20417 A MA20417 A MA 20417A MA 20417 A MA20417 A MA 20417A MA 20193 A1 MA20193 A1 MA 20193A1
Authority
MA
Morocco
Prior art keywords
stabilization
phosphoric acid
wet process
acid obtained
wet
Prior art date
Application number
MA20417A
Other languages
English (en)
Original Assignee
Freeport Minerals 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 Freeport Minerals Co filed Critical Freeport Minerals Co
Publication of MA20193A1 publication Critical patent/MA20193A1/fr

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
    • 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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
MA20417A 1983-08-01 1984-07-31 Stabilisation de l'acide phosphorique obtenu par voie humide. MA20193A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/519,181 US4487750A (en) 1983-08-01 1983-08-01 Stabilization of wet process phosphoric acid

Publications (1)

Publication Number Publication Date
MA20193A1 true MA20193A1 (fr) 1985-04-01

Family

ID=24067219

Family Applications (1)

Application Number Title Priority Date Filing Date
MA20417A MA20193A1 (fr) 1983-08-01 1984-07-31 Stabilisation de l'acide phosphorique obtenu par voie humide.

Country Status (11)

Country Link
US (1) US4487750A (fr)
EP (1) EP0151177B1 (fr)
JP (1) JPS60501899A (fr)
KR (1) KR900003648B1 (fr)
BR (1) BR8406959A (fr)
CA (1) CA1213716A (fr)
DE (1) DE3478303D1 (fr)
JO (1) JO1297B1 (fr)
MA (1) MA20193A1 (fr)
WO (1) WO1985000582A1 (fr)
ZA (1) ZA845704B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655790A (en) * 1985-05-08 1987-04-07 Freeport Research And Development Company Phosphoric acid crystallization process
US4657559A (en) * 1985-05-08 1987-04-14 Freeport Research And Engineering Company Process for seed crystal preparation for phosphoric acid crystallization
US4655789A (en) * 1985-05-08 1987-04-07 Freeport Research And Engineering Company Phosphoric acid crystallization process
US4632814A (en) * 1985-12-20 1986-12-30 International Minerals & Chemical Corp. Process for stabilizing 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
US5066471A (en) * 1990-11-26 1991-11-19 Imc Fertilizer, Inc. Lowering post-precipitation in merchant acid
FI105909B (fi) * 1999-03-24 2000-10-31 Kemira Chemicals Oy Menetelmä fosforihapon laadun parantamiseksi
US6241796B1 (en) 1999-07-21 2001-06-05 Imc-Agrico Company Method for producing fertilizer grade DAP having an increased nitrogen concentration from recycle
US6280494B1 (en) 1999-07-21 2001-08-28 Imc-Agrico Co. Method for producing fertilizer grade DAP having an increased nitrogen concentration in a spray column
CH701939B1 (de) * 2007-09-06 2011-04-15 Sulzer Chemtech Ag Verfahren und Vorrichtung zur Reinigung von wässriger Phosphorsäure.
CN106809809B (zh) * 2016-12-23 2019-01-22 安徽六国化工股份有限公司 一种湿法磷酸生产过程中磷酸淤浆的回收利用方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936888A (en) * 1958-07-07 1960-05-17 Int Minerals & Chem Corp Production of clarified acidic phosphatic solutions
US3481700A (en) * 1966-09-01 1969-12-02 Grace W R & Co Process and product
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
US4305915A (en) * 1976-05-06 1981-12-15 W. R. Grace & Co. Stabilized wet process phosphoric acid
CA1086475A (fr) * 1976-05-06 1980-09-30 Richard N. Hill Production par voie humide d'acide phosphorique stabilise
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
US4248846A (en) * 1979-07-03 1981-02-03 W. R. Grace & Co. Production of stabilized wet process phosphoric acid
US4250154A (en) * 1979-10-22 1981-02-10 W. R. Grace & Co. Re-post precipitation control
US4279877A (en) * 1980-01-10 1981-07-21 W. R. Grace & Co. Oxidative control of post precipitation in phosphoric acid
US4293311A (en) * 1980-01-10 1981-10-06 W. R. Grace & Co. Phosphoric acid crystallizer underflow return
DE3003250C2 (de) * 1980-01-30 1982-09-16 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren zum Abtrennen von Feststoffen aus Phosphorsäure
US4301131A (en) * 1980-11-28 1981-11-17 W. R. Grace & Co. Oxidation of phosphoric acid plus K compound addition
US4364912A (en) * 1981-07-20 1982-12-21 W. R. Grace & Co. Post precipitation control of low-iron phosphoric acid, without perlite

Also Published As

Publication number Publication date
BR8406959A (pt) 1985-06-11
EP0151177A4 (fr) 1987-01-22
KR850001506A (ko) 1985-03-30
EP0151177B1 (fr) 1989-05-24
US4487750A (en) 1984-12-11
WO1985000582A1 (fr) 1985-02-14
JO1297B1 (en) 1986-11-30
DE3478303D1 (en) 1989-06-29
JPS60501899A (ja) 1985-11-07
EP0151177A1 (fr) 1985-08-14
CA1213716A (fr) 1986-11-12
JPH0459245B2 (fr) 1992-09-21
ZA845704B (en) 1985-03-27
KR900003648B1 (ko) 1990-05-28

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