MA20771A1 - Separation de substances dissoutes de l'acide phosphorique de voie humide - Google Patents

Separation de substances dissoutes de l'acide phosphorique de voie humide

Info

Publication number
MA20771A1
MA20771A1 MA20999A MA20999A MA20771A1 MA 20771 A1 MA20771 A1 MA 20771A1 MA 20999 A MA20999 A MA 20999A MA 20999 A MA20999 A MA 20999A MA 20771 A1 MA20771 A1 MA 20771A1
Authority
MA
Morocco
Prior art keywords
separation
phosphoric acid
dissolved substances
wet phosphoric
wet
Prior art date
Application number
MA20999A
Other languages
English (en)
Original Assignee
Imc Fertilizer Inc
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 Imc Fertilizer Inc filed Critical Imc Fertilizer Inc
Publication of MA20771A1 publication Critical patent/MA20771A1/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
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Silicon Compounds (AREA)
MA20999A 1985-10-22 1986-09-17 Separation de substances dissoutes de l'acide phosphorique de voie humide MA20771A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/790,128 US4640828A (en) 1985-10-22 1985-10-22 Separation of dissolved substances from wet process phosphoric acid

Publications (1)

Publication Number Publication Date
MA20771A1 true MA20771A1 (fr) 1987-04-01

Family

ID=25149721

Family Applications (1)

Application Number Title Priority Date Filing Date
MA20999A MA20771A1 (fr) 1985-10-22 1986-09-17 Separation de substances dissoutes de l'acide phosphorique de voie humide

Country Status (3)

Country Link
US (1) US4640828A (fr)
MA (1) MA20771A1 (fr)
TN (1) TNSN86145A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066471A (en) * 1990-11-26 1991-11-19 Imc Fertilizer, Inc. Lowering post-precipitation in merchant acid
TWI257915B (en) * 2004-06-29 2006-07-11 Yung-Hsiung Hsu Processes for purifying phosphoric acid

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987376A (en) * 1956-12-27 1961-06-06 Int Minerals & Chem Corp Method for defluorination of phosphoric acid
US3642439A (en) * 1969-10-15 1972-02-15 Allied Chem Method of separating magnesium from wet-process phosphoric acid
US4136199A (en) * 1977-06-27 1979-01-23 Occidental Chemical Company Metallic ion removal from phosphoric acid
US4248843A (en) * 1977-09-29 1981-02-03 Triomf Fertilizer (Proprietary) Ltd. Treatment of phosphoric acid
US4299804A (en) * 1978-03-09 1981-11-10 Agrico Chemical Company Removal of magnesium and aluminum impurities from wet process phosphoric acid
US4215098A (en) * 1978-04-26 1980-07-29 Albright & Wilson Limited Purification of wet process phosphoric acid
US4243643A (en) * 1978-10-25 1981-01-06 Occidental Chemical Company Metallic ion removal from phosphoric acid
US4409194A (en) * 1978-12-14 1983-10-11 Stauffer Chemical Company Method of separating magnesium from wet process superphosphoric acid
US4242198A (en) * 1979-03-12 1980-12-30 W. R. Grace & Co. Reduction of magnesium and other cations in phosphoric acid
US4376756A (en) * 1980-12-05 1983-03-15 Occidental Chemical Company Process for blending phosphoric acids of differing impurity content
US4379776A (en) * 1981-07-13 1983-04-12 Occidental Research Corporation Process for reducing aluminum and fluorine in phosphoric acids
US4377560A (en) * 1981-07-13 1983-03-22 Occidental Research Corporation Process for producing low aluminum content phosphoric acid from high aluminum matrix
US4435372A (en) * 1982-09-13 1984-03-06 Tennessee Valley Authority Production of purified strong wet-process phosphoric acid
US4554144A (en) * 1983-03-18 1985-11-19 Occidental Research Corporation Removal of magnesium and/or aluminum values from impure aqueous phosphoric acid

Also Published As

Publication number Publication date
TNSN86145A1 (fr) 1990-01-01
US4640828A (en) 1987-02-03

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