GB1246660A - Process for the preparation of urea in combination with the synthesis of ammonia - Google Patents

Process for the preparation of urea in combination with the synthesis of ammonia

Info

Publication number
GB1246660A
GB1246660A GB60248/68A GB6024868A GB1246660A GB 1246660 A GB1246660 A GB 1246660A GB 60248/68 A GB60248/68 A GB 60248/68A GB 6024868 A GB6024868 A GB 6024868A GB 1246660 A GB1246660 A GB 1246660A
Authority
GB
United Kingdom
Prior art keywords
urea
ammonia
passed
aqueous solution
synthesis reactor
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
GB60248/68A
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of GB1246660A publication Critical patent/GB1246660A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
    • C01C1/0488—Processes integrated with preparations of other compounds, e.g. methanol, urea or with processes for power generation
    • 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
    • C07C273/10—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 combined with the synthesis of ammonia
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

1,246,660. Improvements in the production of urea. STAMICARBON N.V. 18 Dec., 1968 [21 Dec., 1967], No. 60248/68. Heading C2C A process for the preparation of urea, in which ammonia produced from nitrogen and hydrogen in an ammonia synthesis reactor is passed to a urea-synthesis reactor and therein reacted with CO 2 to form urea, is characterized in that an NH 3 -, H 2 - and N 2 -containing gas stream derived from the said ammoniasynthesis reactor is passed under elevated pressure into an absorbing zone and therein passed in countercurrent flow to an absorbing agent for ammonia consisting of water or an aqueous solution of urea or an aqueous solution of ammonia and carbon dioxide whereby ammonia is removed from the said gas stream in the form of an ammonia solution and the said ammonia solution is passed to the urea synthesis reactor. The aqueous solution of urea, or of ammonia and carbon dioxide, may normally be obtained from a urea plant. The process may be operated continuously, suitable forms of apparatus being described.
GB60248/68A 1967-12-21 1968-12-18 Process for the preparation of urea in combination with the synthesis of ammonia Expired GB1246660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6717525.A NL159960C (en) 1967-12-21 1967-12-21 PROCEDURE FOR THE PREPARATION OF UREA IN COMBINATION WITH THE SYNTHESIS OF AMMONIA.

Publications (1)

Publication Number Publication Date
GB1246660A true GB1246660A (en) 1971-09-15

Family

ID=19802065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB60248/68A Expired GB1246660A (en) 1967-12-21 1968-12-18 Process for the preparation of urea in combination with the synthesis of ammonia

Country Status (8)

Country Link
JP (1) JPS5016343B1 (en)
AT (1) AT284861B (en)
BE (1) BE725715A (en)
CH (1) CH507916A (en)
DE (1) DE1816099B2 (en)
FR (1) FR1602157A (en)
GB (1) GB1246660A (en)
NL (1) NL159960C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2502881A1 (en) * 2011-03-24 2012-09-26 Urea Casale S.A. Process and plant for ammonia-urea production

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PH12569A (en) * 1970-09-03 1979-06-20 Snam Progetti Process for producing urea
US4869887A (en) * 1987-10-30 1989-09-26 Dijk Christiaan P Van Integrated ammonia-urea process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2502881A1 (en) * 2011-03-24 2012-09-26 Urea Casale S.A. Process and plant for ammonia-urea production
WO2012126673A1 (en) * 2011-03-24 2012-09-27 Urea Casale Sa Process and plant for ammonia-urea production
RU2597362C2 (en) * 2011-03-24 2016-09-10 Касале Са Method and apparatus for producing ammonia-urea
US9708250B2 (en) 2011-03-24 2017-07-18 Casale Sa Process and plant for ammonia-urea production

Also Published As

Publication number Publication date
BE725715A (en) 1969-06-19
NL159960C (en) 1979-09-17
AT284861B (en) 1970-10-12
JPS5016343B1 (en) 1975-06-12
DE1816099B2 (en) 1977-10-20
FR1602157A (en) 1970-10-19
NL159960B (en) 1979-04-17
DE1816099A1 (en) 1969-07-10
NL6717525A (en) 1969-06-24
CH507916A (en) 1971-05-31

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