GB954222A - Method for preparing diammonium phosphate, starting from phosphoric acid produced bythe wet process - Google Patents

Method for preparing diammonium phosphate, starting from phosphoric acid produced bythe wet process

Info

Publication number
GB954222A
GB954222A GB36517/60A GB3651760A GB954222A GB 954222 A GB954222 A GB 954222A GB 36517/60 A GB36517/60 A GB 36517/60A GB 3651760 A GB3651760 A GB 3651760A GB 954222 A GB954222 A GB 954222A
Authority
GB
United Kingdom
Prior art keywords
diammonium phosphate
phosphoric acid
wet process
starting
acid produced
Prior art date
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
GB36517/60A
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.)
Panmetals and Processes Inc
Original Assignee
Panmetals and Processes 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 Panmetals and Processes Inc filed Critical Panmetals and Processes Inc
Publication of GB954222A publication Critical patent/GB954222A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • 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
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • C01B25/405—Polyphosphates of ammonium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)

Abstract

Diammonium phosphate is produced by neutralizing phosphoric acid, prepared by the wet process (reference given) with ammonia in a saturator, separating the resulting crystallized diammonium phosphate and recirculating to the saturator a fraction of the mother liquor such that the impurity ratio by weight Fe2O3+Al2O3/P2O5 in the circulating solution does not exceed 0.10. The portion of mother liquor not recirculated is dried to yield a product containing, by weight, 15-20% N and 35-45% P2O5, which is soluble in water and citrate. The fraction of mother liquor recirculating is preferably such that the impurity ratio F/P2O5 does not exceed 0.10 and the impurity ratio SO3/P2O5 does not exceed 0.30.
GB36517/60A 1959-10-28 1960-10-25 Method for preparing diammonium phosphate, starting from phosphoric acid produced bythe wet process Expired GB954222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR808728A FR1248055A (en) 1959-10-28 1959-10-28 Process for the manufacture of biammonium phosphate from phosphoric acid in a wet way

Publications (1)

Publication Number Publication Date
GB954222A true GB954222A (en) 1964-04-02

Family

ID=8720632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36517/60A Expired GB954222A (en) 1959-10-28 1960-10-25 Method for preparing diammonium phosphate, starting from phosphoric acid produced bythe wet process

Country Status (6)

Country Link
BE (1) BE596531A (en)
CH (1) CH395039A (en)
ES (1) ES261925A1 (en)
FR (1) FR1248055A (en)
GB (1) GB954222A (en)
OA (1) OA01118A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103288523A (en) * 2012-03-02 2013-09-11 宁夏鲁西化工化肥有限公司 Preparation method of Meijiajia composite diammonium phosphate and Meijiajia Composite diammonium phosphate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103288523A (en) * 2012-03-02 2013-09-11 宁夏鲁西化工化肥有限公司 Preparation method of Meijiajia composite diammonium phosphate and Meijiajia Composite diammonium phosphate

Also Published As

Publication number Publication date
OA01118A (en) 1968-08-07
FR1248055A (en) 1960-12-09
BE596531A (en) 1961-02-15
ES261925A1 (en) 1961-02-01
CH395039A (en) 1965-07-15

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