BE778314Q - Liquid ammonium polyphosphate fertilisersprodn - Google Patents

Liquid ammonium polyphosphate fertilisersprodn

Info

Publication number
BE778314Q
BE778314Q BE778314A BE778314A BE778314Q BE 778314 Q BE778314 Q BE 778314Q BE 778314 A BE778314 A BE 778314A BE 778314 A BE778314 A BE 778314A BE 778314 Q BE778314 Q BE 778314Q
Authority
BE
Belgium
Prior art keywords
degrees
preheated
ammonium polyphosphate
fertilisersprodn
liquid ammonium
Prior art date
Application number
BE778314A
Other languages
French (fr)
Original Assignee
Continental Oil 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
Priority claimed from FR7105821A external-priority patent/FR2083935A5/en
Application filed by Continental Oil Co filed Critical Continental Oil Co
Application granted granted Critical
Publication of BE778314Q publication Critical patent/BE778314Q/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
    • C05B13/06—Alkali and alkaline earth meta- or polyphosphate fertilisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00103—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor in a heat exchanger separate from the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00105—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling
    • B01J2219/00108—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling involving reactant vapours

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Ammonium polyphosphate solns of use as liquid fertilisers, are prepd by counter-current mixing of two reagent streams at least one of which is preheated in a reactor of length:diam ratio >=50 and at a space velocity of 8.5-9.0 sec -1. The stream comprises wet process phosphoric acid (preheated to 135-143 degrees) and NH3 (preheated to 149-166 degrees), and conditions are chosen such that a reactor temp. of 232 degrees-260 degrees is maintained. The effluent is cooled by mixing with a spray of product at 71 degrees. The process is less costly than prior art.
BE778314A 1970-03-23 1972-01-20 Liquid ammonium polyphosphate fertilisersprodn BE778314Q (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2190770A 1970-03-23 1970-03-23
FR7105821A FR2083935A5 (en) 1970-03-23 1971-02-19 Liquid ammonium polyphosphate fertilisersprodn

Publications (1)

Publication Number Publication Date
BE778314Q true BE778314Q (en) 1972-05-16

Family

ID=26216216

Family Applications (1)

Application Number Title Priority Date Filing Date
BE778314A BE778314Q (en) 1970-03-23 1972-01-20 Liquid ammonium polyphosphate fertilisersprodn

Country Status (1)

Country Link
BE (1) BE778314Q (en)

Similar Documents

Publication Publication Date Title
BE760491A (en) PROCESS FOR OBTAINING NEW REACTION PRODUCTS OF PHOSPHORIC ACID, UREA AND AMMONIA, AND THEIR APPLICATIONS AS FERTILIZERS
FR2083935A5 (en) Liquid ammonium polyphosphate fertilisersprodn
GB1148767A (en) Process for the production of melamine
GB1199697A (en) Process for the Removal of Unreacted Ammonia in the Production of Acrylonitrile
GB1238404A (en)
GB1147540A (en) Butanetetrol dicarbonates and their production
BE778314Q (en) Liquid ammonium polyphosphate fertilisersprodn
GB1353653A (en) Urea synthesis
ES395329A1 (en) Production of potassium dihydrogen phosphate fertilizers
GB1052469A (en)
GB1321563A (en) Preparation of 3,5-dinitrobenzotrifluoride compounds
GB1230759A (en)
GB1264275A (en)
FR2124590A1 (en) Amidosulphonic acid prepn - from gaseous sulphur trioxide and partly liquid ammonia with subsequent mineral acid hydro
GB1327321A (en) Process for urea synthesis
FR2038846A6 (en) Ammonisation of phosphoric and nitric acids - for fertilisers
GB1051634A (en)
FR2141490A1 (en) Fluid mixing reactor - with helical reaction channel suitable for prodn ammonium phosphates
GB1385476A (en) Neutralisation of phosphoric acids
FR2034107A1 (en) Solid ammonium polyphosphate-based - fertiliser
GB1271427A (en) Preparation of mixed fertilizers and ammonium nitrate
FR2095106A5 (en) Urea process from ammonia and carbon dioxide - improved by stripping recycle carbamate with feed carbon dioxide
FR1534669A (en) Process and device for the decomposition of ammonium carbamate, in particular resulting from the synthesis of urea, as well as the products obtained by the present process or similar process
FR2076321A5 (en) Phosphoric acid-urea-ammonia reaction for - fertilizer prodn
GB1159399A (en) Production of Nitric Oxide