GB1081296A – Fertilizer manufacture
– Google Patents
GB1081296A – Fertilizer manufacture
– Google Patents
Fertilizer manufacture
Info
Publication number
GB1081296A
GB1081296A
GB12781/64A
GB1278164A
GB1081296A
GB 1081296 A
GB1081296 A
GB 1081296A
GB 12781/64 A
GB12781/64 A
GB 12781/64A
GB 1278164 A
GB1278164 A
GB 1278164A
GB 1081296 A
GB1081296 A
GB 1081296A
Authority
GB
United Kingdom
Prior art keywords
soln
ammonium phosphate
nh4no3
parts
fertilizer
Prior art date
1964-03-26
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
GB12781/64A
Inventor
John David Crowther Hemsley
Stanislaw Maria Janikowski
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.)
Fisons Fertilizers Ltd
Fisons Ltd
Original Assignee
Fisons Fertilizers Ltd
Fisons Ltd
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.)
1964-03-26
Filing date
1964-03-26
Publication date
1967-08-31
Priority to BE661724D
priority
Critical
patent/BE661724A/xx
1964-03-26
Application filed by Fisons Fertilizers Ltd, Fisons Ltd
filed
Critical
Fisons Fertilizers Ltd
1964-03-26
Priority to GB12781/64A
priority
patent/GB1081296A/en
1965-03-15
Priority to US439978A
priority
patent/US3415638A/en
1965-03-24
Priority to AT265565A
priority
patent/AT267558B/en
1965-03-25
Priority to ES0310971A
priority
patent/ES310971A1/en
1967-08-31
Publication of GB1081296A
publication
Critical
patent/GB1081296A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C01B25/38—Condensed phosphates
C01B25/40—Polyphosphates
C01B25/405—Polyphosphates of ammonium
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
C05—FERTILISERS; MANUFACTURE THEREOF
C05B—PHOSPHATIC FERTILISERS
C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Abstract
Ammonium phosphate (NH3:H3PO4=0.8:1 to 2.1:1), which may contain up to 20% (NH4)2SO4, is prepared by reacting phosphoric acid containing less than 60% P2O5 with NH3 gas under super-atmospheric pressure, to give a fluid ammonium phosphate solution at its boiling point containing 4-15% water, and expelling the solution into an ambient pressure zone where it loses H2O, to form a solid product. NH3 may be passed into phosphoric acid containing 30-55% by weight P2O5, and which may be mixed with H2SO4, at a pressure of 15-50 lb./m.2 giving ammonium phosphate containing 2-10% water. The soln. may be expelled into a prilling tower, or on to a conveyer belt provided with a flail-type flaker, or on to particulate solids, e.g. fertilizers and/or recycle material, and then granulated by agitation in a rotating drum or paddle mixer. Fertilizer granules may be prepared by expelling the soln. into the ambient pressure zone with a concentrated soln. of NH4NO3, and/or by spraying the soln. on to particles of fertilizer materials, e.g. NH4NO3, (NH4)2SO4, triple and single superphosphates KCl, K2SO4, KNO3 and potassium phosphates. Example 2 discloses a fertilizer formed by spraying 1 part of the ammonium phosphate soln. and 2-33 parts NH4NO3 soln. on to 0.7 parts KCl and 5 parts of recycled undersize or oversize ammonium phosphate.
GB12781/64A
1964-03-26
1964-03-26
Fertilizer manufacture
Expired
GB1081296A
(en)
Priority Applications (5)
Application Number
Priority Date
Filing Date
Title
BE661724D
BE661724A
(en)
1964-03-26
GB12781/64A
GB1081296A
(en)
1964-03-26
1964-03-26
Fertilizer manufacture
US439978A
US3415638A
(en)
1964-03-26
1965-03-15
Process for preparing ammonium phosphate
AT265565A
AT267558B
(en)
1964-03-26
1965-03-24
Process for the production of solid ammonium phosphates or of fertilizers containing them
ES0310971A
ES310971A1
(en)
1964-03-26
1965-03-25
A procedure for preparing solid ammonium phosphates. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB12781/64A
GB1081296A
(en)
1964-03-26
1964-03-26
Fertilizer manufacture
Publications (1)
Publication Number
Publication Date
GB1081296A
true
GB1081296A
(en)
1967-08-31
Family
ID=10011004
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB12781/64A
Expired
GB1081296A
(en)
1964-03-26
1964-03-26
Fertilizer manufacture
Country Status (3)
Country
Link
US
(1)
US3415638A
(en)
BE
(1)
BE661724A
(en)
GB
(1)
GB1081296A
(en)
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1667389B1
(en)
*
1967-08-10
1970-10-15
Benckiser Knapsack Gmbh
Process for the production of alkali mono-, di- and triphosphates
NL7417042A
(en)
*
1974-01-16
1975-07-18
Fisons Ltd
PROCESS FOR THE PREPARATION OF AMMONIUM PHOSPHATES.
US4009245A
(en)
*
1975-02-28
1977-02-22
United States Steel Corporation
Process for the manufacture of monoammonium phosphate
US6280494B1
(en)
*
1999-07-21
2001-08-28
Imc-Agrico Co.
Method for producing fertilizer grade DAP having an increased nitrogen concentration in a spray column
Family Cites Families (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2614040A
(en)
*
1947-02-12
1952-10-14
Ets Kuhlmann
Method of ammonization
US3130033A
(en)
*
1956-11-28
1964-04-21
Barnard & Leas Mfg Company Inc
Method of producing a mixed liquid fertilizer containing nitrogen and phosphorus
US2912318A
(en)
*
1957-01-16
1959-11-10
Commercial Solvents Corp
Process for making mixed fertilizers containing ammonium nitrate and calcium carbonate
US2970888A
(en)
*
1957-05-03
1961-02-07
Koppers Co Inc
Diammonium phoisphate production
US2946655A
(en)
*
1957-08-22
1960-07-26
Koppers Co Inc
Production of diammonium phosphate
US3037855A
(en)
*
1958-05-23
1962-06-05
Allied Chem
Process for pebbling by spraying a mixture of ammonium nitrate and ammonium phosphates
US3207595A
(en)
*
1963-01-02
1965-09-21
American Agricultural Chem Co
Prilled mixed fertilizers
0
BE
BE661724D
patent/BE661724A/xx
unknown
1964
1964-03-26
GB
GB12781/64A
patent/GB1081296A/en
not_active
Expired
1965
1965-03-15
US
US439978A
patent/US3415638A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
BE661724A
(en)
US3415638A
(en)
1968-12-10
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None