GB1149924A – Improvements in or relating to the production of urea phosphate
– Google Patents
GB1149924A – Improvements in or relating to the production of urea phosphate
– Google Patents
Improvements in or relating to the production of urea phosphate
Info
Publication number
GB1149924A
GB1149924A
GB4911566A
GB4911566A
GB1149924A
GB 1149924 A
GB1149924 A
GB 1149924A
GB 4911566 A
GB4911566 A
GB 4911566A
GB 4911566 A
GB4911566 A
GB 4911566A
GB 1149924 A
GB1149924 A
GB 1149924A
Authority
GB
United Kingdom
Prior art keywords
solution
urea phosphate
water
mother liquor
urea
Prior art date
1966-11-02
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
GB4911566A
Inventor
Douglas Keens
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.)
Power Gas Corp Ltd
Original Assignee
Power Gas Corp 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.)
1966-11-02
Filing date
1966-11-02
Publication date
1969-04-23
1966-11-02
Application filed by Power Gas Corp Ltd
filed
Critical
Power Gas Corp Ltd
1966-11-02
Priority to GB4911566A
priority
Critical
patent/GB1149924A/en
1969-04-23
Publication of GB1149924A
publication
Critical
patent/GB1149924A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C05—FERTILISERS; MANUFACTURE THEREOF
C05C—NITROGENOUS FERTILISERS
C05C9/00—Fertilisers containing urea or urea compounds
C—CHEMISTRY; METALLURGY
C05—FERTILISERS; MANUFACTURE THEREOF
C05B—PHOSPHATIC FERTILISERS
C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
Abstract
1,149,924. Urea phosphate. POWER-GAS CORP. Ltd. 24 Oct., 1967 [2 Nov., 1966], No. 49115/66. Heading C2C. A process for the continuous production of urea phosphate comprises the steps of forming an aqueous feed solution of phosphoric acid and urea, heating said solution and evaporating water therefrom, with or without subsequent cooling, to yield a supersaturated solution of urea phosphate, forming a suspension of forming and growing crystals of urea phosphate in a mother liquor in which the weight ratio H 3 PO 4 to CO(NH 2 ) 2 on a water-free basis is held between pre-determined limits depending on the mother liquor temperature, contacting said supersaturated solution with said suspension, withdrawing grown crystals of urea phosphate from the contacted solution and suspension, withdrawing mother liquor from the contacted solution and suspension, recycling said mother liquor and adding phosphoric acid, urea and water thereto to form the aqueous feed solution so that in the mother liquor after crystallization the weight ratio H 3 PO 4 to CO(NH 2 ) 2 on a water-free basis is maintained within the said limits. The concentrated feed solution may be cooled by indirect heat exchange, subsequent to the evaporation of water to yield the supersaturated solution of urea phosphate, or if the concentrated feed solution is not to be cooled the evaporation of water may be carried out under vacuum by flashing off steam from the heated solution. The urea phosphate produced may be worked up using conventional procedures, suitable forms of apparatus being described for carrying out the continuous process.
GB4911566A
1966-11-02
1966-11-02
Improvements in or relating to the production of urea phosphate
Expired
GB1149924A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB4911566A
GB1149924A
(en)
1966-11-02
1966-11-02
Improvements in or relating to the production of urea phosphate
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4911566A
GB1149924A
(en)
1966-11-02
1966-11-02
Improvements in or relating to the production of urea phosphate
Publications (1)
Publication Number
Publication Date
GB1149924A
true
GB1149924A
(en)
1969-04-23
Family
ID=10451194
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4911566A
Expired
GB1149924A
(en)
1966-11-02
1966-11-02
Improvements in or relating to the production of urea phosphate
Country Status (1)
Country
Link
GB
(1)
GB1149924A
(en)
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2058297A1
(en)
*
1969-08-15
1971-05-28
Chem & Phosphates Ltd
US3713802A
(en)
*
1970-01-09
1973-01-30
Ugine Kuhlmann
Reaction of phosphoric acid, urea, and ammonia
DE2902651A1
(en)
*
1978-10-30
1980-05-14
Stoller Ets
LIQUID FERTILIZER OF HIGH ANALYSIS
US4315763A
(en)
1978-10-30
1982-02-16
Stoller Enterprises, Inc.
High analysis liquid fertilizers
WO2008046428A1
(en)
*
2006-10-18
2008-04-24
Fekria Ahmed Fathi Kassem
New method for cheap production of urea phosphate
CN103694143A
(en)
*
2013-12-25
2014-04-02
贵州开磷（集团）有限责任公司
Device for continuously producing urea phosphate from wet-process phosphoric acid
1966
1966-11-02
GB
GB4911566A
patent/GB1149924A/en
not_active
Expired
Cited By (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2058297A1
(en)
*
1969-08-15
1971-05-28
Chem & Phosphates Ltd
US3713802A
(en)
*
1970-01-09
1973-01-30
Ugine Kuhlmann
Reaction of phosphoric acid, urea, and ammonia
DE2902651A1
(en)
*
1978-10-30
1980-05-14
Stoller Ets
LIQUID FERTILIZER OF HIGH ANALYSIS
FR2440346A1
(en)
*
1978-10-30
1980-05-30
Stoller Ets
FERTILIZER-RICH LIQUID FERTILIZERS AND THEIR PREPARATION PROCESS
US4315763A
(en)
1978-10-30
1982-02-16
Stoller Enterprises, Inc.
High analysis liquid fertilizers
WO2008046428A1
(en)
*
2006-10-18
2008-04-24
Fekria Ahmed Fathi Kassem
New method for cheap production of urea phosphate
CN103694143A
(en)
*
2013-12-25
2014-04-02
贵州开磷（集团）有限责任公司
Device for continuously producing urea phosphate from wet-process phosphoric acid
Similar Documents
Publication
Publication Date
Title
GB1149924A
(en)
1969-04-23
Improvements in or relating to the production of urea phosphate
US2730542A
(en)
1956-01-10
Process for preparing ethanol-2-aminophosphoric acid
GB655084A
(en)
1951-07-11
Method and apparatus for preparing a solution of a single constituent from a solution containing a plurality of dissolved substances
US2374004A
(en)
1945-04-17
Glauber's salt conversion
US3645674A
(en)
1972-02-29
Process for the manufacture of ammonium polyphosphate
US2057956A
(en)
1936-10-20
Production of monocalcium phosphate
GB1009736A
(en)
1965-11-10
Method for purifying salt
US3113063A
(en)
1963-12-03
Method of drying phosphoruscontaining acids
US1962080A
(en)
1934-06-05
Crystalline anhydrous disodium phosphate and process of making same
US2862790A
(en)
1958-12-02
Sulfamic acid purification
US2224836A
(en)
1940-12-10
Z-aminopyrimidines
US2642355A
(en)
1953-06-16
Production of concentrated fertilizer by base exchange
US2022050A
(en)
1935-11-26
Preparation of phosphoric acids
GB653970A
(en)
1951-05-30
A process for lowering the calcium nitrate content of a solution of raw phosphate in nitric acid
JPH04356453A
(en)
1992-12-10
Production of methacrylsulfonate
GB890811A
(en)
1962-03-07
Wet process for phosphoric acid manufacture
US2744892A
(en)
1956-05-08
Crystallization of dihydrostreptomycin sulphate
GB1104663A
(en)
1968-02-28
Production of ammonium phosphate
GB726848A
(en)
1955-03-23
Process for the production of an ammonium-citrate soluble fertilizer containing mainly secondary calcium phosphate
SU565676A1
(en)
1977-07-25
Salt crystallization method
SU66247A1
(en)
1945-11-30
The method of obtaining ammonia
ES331849A1
(en)
1967-07-01
A procedure for the preparation of concentrated phosphoric acid. (Machine-translation by Google Translate, not legally binding)
GB1135954A
(en)
1968-12-11
A process for producing monoammonium glutamate and monosodium glutamate therefrom
SU420558A1
(en)
1974-03-25
METHOD OF OBTAINING ALUMINUM METAPHOSPHATE
US1945914A
(en)
1934-02-06
Production of water-soluble phosphate compounds
None