GB1379761A - Process for the manufacture of ammonium phosphate fertilizers - Google Patents

Process for the manufacture of ammonium phosphate fertilizers

Info

Publication number
GB1379761A
GB1379761A GB5417571A GB5417571A GB1379761A GB 1379761 A GB1379761 A GB 1379761A GB 5417571 A GB5417571 A GB 5417571A GB 5417571 A GB5417571 A GB 5417571A GB 1379761 A GB1379761 A GB 1379761A
Authority
GB
United Kingdom
Prior art keywords
bed
solids
ammonium
phosphate
ammonia
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
GB5417571A
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.)
Cros SA
Original Assignee
Cros SA
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 Cros SA filed Critical Cros SA
Publication of GB1379761A publication Critical patent/GB1379761A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/10—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts
    • 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
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • 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
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/182—Details relating to the spatial orientation of the reactor horizontal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fertilizers (AREA)

Abstract

1379761 Ammonium phosphates SOC ANON CROS 22 Nov 1971 [20 Nov 1970] 54175/71 Heading C1A An ammonium phosphate fertilizer is made by continuously and directly reacting phosphoric acid containing 35-52% P 2 O 5 with anhydrous ammonia on a bed of recycled solids in a rotary granulator at 60-95‹ C., the bed at the granulator outlet having a moisture content of 3-10% and a pH (measured on a 10% aqueous solution) of 3À5-7À0, the ratio of recycled solids to product being 1 :1 to 3 :1. In one embodiment, the ammonia is introduced beneath the solids bed by a plurality of coulter elements to each of which is fixed a tube, each coulter forming a groove in the solids bed into which the ammonia flows (Specification 1,379,763.) The phosphoric acid may also be fed in through similar fixed tubes or sprayed from atomizers over the solids bed. According to the particular pH, monoammonium phosphate, di-ammonium phosphate or intermediate forms thereof are obtainable. Binary, and other fertilizers may be formed by supplying to the reaction zone urea, urea phosphate, ammonium nitrate, a potassium salt or trace element salts. Examples describe the preparation of (1) MAP containing 11% N, 52-53% P 2 O 5 and 1À0- 1 5% H 2 O; (2) DAP (18% N, 46% P) containing 1À0-1À5% H 2 O; (3) a binary fertilizer containing 28% N and 28% P.
GB5417571A 1970-11-20 1971-11-22 Process for the manufacture of ammonium phosphate fertilizers Expired GB1379761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES385734A ES385734A1 (en) 1970-11-20 1970-11-20 Process for the manufacture of ammonium phosphate fertilizers

Publications (1)

Publication Number Publication Date
GB1379761A true GB1379761A (en) 1975-01-08

Family

ID=8457305

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3083174A Expired GB1379763A (en) 1970-11-20 1971-11-22 Rotary reactor
GB5417571A Expired GB1379761A (en) 1970-11-20 1971-11-22 Process for the manufacture of ammonium phosphate fertilizers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3083174A Expired GB1379763A (en) 1970-11-20 1971-11-22 Rotary reactor

Country Status (2)

Country Link
ES (1) ES385734A1 (en)
GB (2) GB1379763A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744965A (en) * 1986-08-28 1988-05-17 Conserv, Inc. Process for producing granular diammonium phosphate
CN101723340B (en) * 2009-12-29 2011-07-27 中国海洋石油总公司 Preparation method of diammonium phosphate
CN113578193A (en) * 2021-08-24 2021-11-02 云南弘祥化工有限公司 Novel granulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744965A (en) * 1986-08-28 1988-05-17 Conserv, Inc. Process for producing granular diammonium phosphate
CN101723340B (en) * 2009-12-29 2011-07-27 中国海洋石油总公司 Preparation method of diammonium phosphate
CN113578193A (en) * 2021-08-24 2021-11-02 云南弘祥化工有限公司 Novel granulator

Also Published As

Publication number Publication date
GB1379763A (en) 1975-01-08
ES385734A1 (en) 1973-04-01

Similar Documents

Publication Publication Date Title
US2255027A (en) Fertilizer manufacture
GB1379761A (en) Process for the manufacture of ammonium phosphate fertilizers
ES2010630A6 (en) A process for the production of granulated di-ammonium phosphate containing fertilizer.
US2067931A (en) Composition and process for the production of fertilizers
GB1142288A (en) Process for the mixing of solid compounds with a melt or a suspension in the production of npk-fertilizer prills
US4073635A (en) Process for producing a slurry suitable for the manufacture of a mixed fertilizer containing nitrogen plus phosphorus
SU647298A1 (en) Method of obtaining granulated complex fertilizer
GB1125664A (en) Production of suspension fertilizers from solutions obtained by treating phosphate rock with nitric acid
SU389065A1 (en) METHOD OF OBTAINING A COMPLEX FERTILIZER
GB1346490A (en) Process for the preparation of oximes
US2060310A (en) Process for the production of fertilizers
GB1048134A (en) Fertilizer
GB1247365A (en) Continuous nitrophosphate fertilizer process
US2968545A (en) Process for producing phosphatecontaining fertilizers
SU436019A1 (en) METHOD FOR OBTAINING AMMONIUM PHOSPHATES
RU2223249C1 (en) Method for preparing complex nitrogen-phosphorus fertilizer
GB1008402A (en) Production of fertilizers
SU1139721A1 (en) Method of obtaining non-compacting fertilizer
GB1277144A (en) Nitrogen phosphate fertilisers and their manufacture
GB1335456A (en) Process for producing liquid fertilizers
GB1152462A (en) Fertilizers
SU446495A1 (en) The method of obtaining urea-phosphorus fertilizer
Ross Recent Development in the Preparation and Use of Fertilizers
SU600127A1 (en) Method of obtaining incompressible fertilizers
GB1271427A (en) Preparation of mixed fertilizers and ammonium nitrate

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years