FR2083935A5 - Liquid ammonium polyphosphate fertilisersprodn - Google Patents

Liquid ammonium polyphosphate fertilisersprodn

Info

Publication number
FR2083935A5
FR2083935A5 FR7105821A FR7105821A FR2083935A5 FR 2083935 A5 FR2083935 A5 FR 2083935A5 FR 7105821 A FR7105821 A FR 7105821A FR 7105821 A FR7105821 A FR 7105821A FR 2083935 A5 FR2083935 A5 FR 2083935A5
Authority
FR
France
Prior art keywords
degrees
preheated
ammonium polyphosphate
fertilisersprodn
liquid ammonium
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
FR7105821A
Other languages
French (fr)
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.)
ConocoPhillips Co
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
Application filed by Continental Oil Co filed Critical Continental Oil Co
Application granted granted Critical
Publication of FR2083935A5 publication Critical patent/FR2083935A5/en
Priority to BE778314A priority Critical patent/BE778314Q/en
Expired legal-status Critical Current

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)
  • Fertilizers (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.
FR7105821A 1970-03-23 1971-02-19 Liquid ammonium polyphosphate fertilisersprodn Expired FR2083935A5 (en)

Priority Applications (1)

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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2190770A 1970-03-23 1970-03-23

Publications (1)

Publication Number Publication Date
FR2083935A5 true FR2083935A5 (en) 1971-12-17

Family

ID=21806775

Family Applications (1)

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

Country Status (4)

Country Link
DE (1) DE2114055A1 (en)
FR (1) FR2083935A5 (en)
LU (1) LU62534A1 (en)
NL (1) NL7103838A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2135448A2 (en) * 1971-05-05 1972-12-22 Gardinier Ets Mfr of polyphosphates - direct from orthophosphoric acid
FR2172826A1 (en) * 1972-02-23 1973-10-05 Cdf Chimie Chimique Char
FR2173744A1 (en) * 1972-03-01 1973-10-12 Amex Phosphates Ammonium phosphate fertiliser from wet process acid and - ammonia - has high polyphosphate content
EP0005885A1 (en) * 1978-06-01 1979-12-12 Unie Van Kunstmestfabrieken B.V. Process and device for the preparation of a product containing ammonium orthophosphate
FR2528411A1 (en) * 1982-06-11 1983-12-16 Charbonnages Ste Chimique Appts. for mfg. ammonium phosphate(s) from ammonia and phosphoric acid - avoids blockages by locations of inlet pipes within unrestricted shell space

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2135448A2 (en) * 1971-05-05 1972-12-22 Gardinier Ets Mfr of polyphosphates - direct from orthophosphoric acid
FR2172826A1 (en) * 1972-02-23 1973-10-05 Cdf Chimie Chimique Char
FR2173744A1 (en) * 1972-03-01 1973-10-12 Amex Phosphates Ammonium phosphate fertiliser from wet process acid and - ammonia - has high polyphosphate content
EP0005885A1 (en) * 1978-06-01 1979-12-12 Unie Van Kunstmestfabrieken B.V. Process and device for the preparation of a product containing ammonium orthophosphate
FR2528411A1 (en) * 1982-06-11 1983-12-16 Charbonnages Ste Chimique Appts. for mfg. ammonium phosphate(s) from ammonia and phosphoric acid - avoids blockages by locations of inlet pipes within unrestricted shell space

Also Published As

Publication number Publication date
NL7103838A (en) 1971-09-27
DE2114055A1 (en) 1971-10-14
LU62534A1 (en) 1971-08-17

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Legal Events

Date Code Title Description
ST Notification of lapse