IL49928A - Purification of crude phosphoric acid - Google Patents

Purification of crude phosphoric acid

Info

Publication number
IL49928A
IL49928A IL49928A IL4992876A IL49928A IL 49928 A IL49928 A IL 49928A IL 49928 A IL49928 A IL 49928A IL 4992876 A IL4992876 A IL 4992876A IL 49928 A IL49928 A IL 49928A
Authority
IL
Israel
Prior art keywords
purification
phosphoric acid
crude phosphoric
crude
acid
Prior art date
Application number
IL49928A
Other languages
English (en)
Other versions
IL49928A0 (en
Original Assignee
Stauffer Chemical 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 Stauffer Chemical Co filed Critical Stauffer Chemical Co
Publication of IL49928A0 publication Critical patent/IL49928A0/xx
Publication of IL49928A publication Critical patent/IL49928A/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
    • C01B25/26—Phosphates
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • C01B25/405—Polyphosphates of ammonium
    • 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
    • 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
    • C01B25/26—Phosphates
    • C01B25/28—Ammonium phosphates
    • 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
    • C01B25/26—Phosphates
    • C01B25/30—Alkali metal phosphates
    • C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
    • C01B25/303—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates with elimination of impurities
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
IL49928A 1975-08-14 1976-06-28 Purification of crude phosphoric acid IL49928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/604,518 US3993735A (en) 1975-08-14 1975-08-14 Cleanup of wet process phosphoric acid

Publications (2)

Publication Number Publication Date
IL49928A0 IL49928A0 (en) 1976-08-31
IL49928A true IL49928A (en) 1978-12-17

Family

ID=24419921

Family Applications (1)

Application Number Title Priority Date Filing Date
IL49928A IL49928A (en) 1975-08-14 1976-06-28 Purification of crude phosphoric acid

Country Status (11)

Country Link
US (1) US3993735A (pt)
JP (1) JPS5223598A (pt)
BE (1) BE845152A (pt)
BR (1) BR7605232A (pt)
DE (1) DE2635911A1 (pt)
ES (1) ES450701A1 (pt)
FR (1) FR2320901A1 (pt)
GB (1) GB1547211A (pt)
IL (1) IL49928A (pt)
NL (1) NL7608259A (pt)
ZA (1) ZA764654B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256570A (en) * 1979-03-19 1981-03-17 International Minerals & Chemical Corporation Purification of phosphoric acid
US4341638A (en) * 1979-10-17 1982-07-27 International Minerals & Chemical Corp. Purification of phosphoric acid
DE3003250C2 (de) * 1980-01-30 1982-09-16 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren zum Abtrennen von Feststoffen aus Phosphorsäure
FR2520342A1 (fr) * 1982-01-25 1983-07-29 Rhone Poulenc Chim Base Procede de purification d'acide phosphorique de voie humide
US4536378A (en) * 1983-10-13 1985-08-20 White Edward A Phosphate fertilizer production
US4551320A (en) * 1984-10-12 1985-11-05 Fmc Corporation Treatment of concentrated phosphoric acid
US4643883A (en) * 1986-01-22 1987-02-17 International Minerals & Chemical Corp. Method of decolorizing wet process phosphoric acid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1981145A (en) * 1933-10-21 1934-11-20 Minerals Separation North Us Process of producing phosphoric acid
US2044940A (en) * 1933-11-25 1936-06-23 Grasselli Chemical Co Preparation of a soluble phosphate
GB1052410A (pt) * 1962-11-14
US3645682A (en) * 1967-09-13 1972-02-29 Multi Minerals Ltd A process for producing phosphoric acid by the use of ion exchange resins
DE2029564C3 (de) * 1970-06-16 1978-06-22 Giulini Chemie Gmbh, 6700 Ludwigshafen Verfahren zur Herstellung von reinen Alkaliphosphaten aus Rohphosphorsäure

Also Published As

Publication number Publication date
GB1547211A (en) 1979-06-06
FR2320901A1 (fr) 1977-03-11
JPS5223598A (en) 1977-02-22
ES450701A1 (es) 1977-12-16
DE2635911A1 (de) 1977-03-03
US3993735A (en) 1976-11-23
BR7605232A (pt) 1977-08-09
IL49928A0 (en) 1976-08-31
ZA764654B (en) 1977-07-27
NL7608259A (nl) 1977-02-16
BE845152A (fr) 1977-02-14

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