GB352725A - Improved manufacture of tri-ammonium phosphate - Google Patents

Improved manufacture of tri-ammonium phosphate

Info

Publication number
GB352725A
GB352725A GB20376/30A GB2037630A GB352725A GB 352725 A GB352725 A GB 352725A GB 20376/30 A GB20376/30 A GB 20376/30A GB 2037630 A GB2037630 A GB 2037630A GB 352725 A GB352725 A GB 352725A
Authority
GB
United Kingdom
Prior art keywords
stage
ammonia
valency
tri
phosphoric acid
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
GB20376/30A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB352725A publication Critical patent/GB352725A/en
Expired legal-status Critical Current

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
    • C01B25/28—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)
  • Treating Waste Gases (AREA)

Abstract

In obtaining triammonium phosphate by absorption of ammonia in phosphoric acid in two stages, so that in the first stage the first valency is completely saturated, and the second valency partially saturated, and in the second stage, complete neutralization is effected, an absorption tower is used in the first stage, the acid being contained in a lead container. A well cooled mixing apparatus of iron or steel is then used in the second stage, wherein the solution of mono- and diammonium phosphate is treated with excess of gaseous ammonia. The salt is obtained in a dry crystalline state by suitably regulating the amount of water in the reactants; thus, using dry ammonia, phosphoric acid solution containing 38 per cent P2O5 must be employed.
GB20376/30A 1930-05-08 1930-07-04 Improved manufacture of tri-ammonium phosphate Expired GB352725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE352725X 1930-05-08

Publications (1)

Publication Number Publication Date
GB352725A true GB352725A (en) 1931-07-16

Family

ID=6277159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20376/30A Expired GB352725A (en) 1930-05-08 1930-07-04 Improved manufacture of tri-ammonium phosphate

Country Status (1)

Country Link
GB (1) GB352725A (en)

Similar Documents

Publication Publication Date Title
GB391495A (en) Improvements in or relating to the production of mono-calcuim phosphate and di-calcium phosphate
GB352725A (en) Improved manufacture of tri-ammonium phosphate
GB430380A (en) Improvements in the manufacture and production of mixed fertilisers containing lime
GB413636A (en) Processes for the production of fertilisers
GB352739A (en) Fertiliser manufacture
GB378670A (en) Improvements in or relating to decomposing raw phosphates
GB339340A (en) Improvements in and relating to the treatment of phosphate rock and the like
GB355637A (en) Improvements in or relating to the manufacture and production of fertilizers
GB315485A (en) Improvements in the manufacture and production of mixed fertilizers
GB357473A (en) An improved process for the production of a fertilizer mixture and the product produced thereby
GB442623A (en) An improved process for the production of a neutral mixed fertiliser
GB356668A (en) Improvements relating to fertilisers
GB363550A (en) Improved manufacture of phosphatic fertilizers
GB389111A (en) Improvements in and relating to the production of fertilising materials
GB607602A (en) An improved process for the manufacture of phosphatic fertilisers and the products thereof
GB306103A (en) Method of producing fertilizers
GB343125A (en) Improvements in or relating to the manufacture of phosphatic manures
GB359020A (en) Improvements in the manufacture of fertilizers
GB379434A (en) Improved manufacture of ammonium magnesium phosphatic fertilizers
GB376793A (en) Process for the production of mixed manures
GB306046A (en)
GB383628A (en) Improvements relating to fertilisers
GB336692A (en) Improvements in the production of fertilizers
GB373126A (en) Improvements in and relating to fertilizer material and process for the production of the same
GB645468A (en) Improvements in or relating to the manufacture of mixed phosphatic fertilisers