GB1440624A - Production of urea - Google Patents

Production of urea

Info

Publication number
GB1440624A
GB1440624A GB1335873A GB1335873A GB1440624A GB 1440624 A GB1440624 A GB 1440624A GB 1335873 A GB1335873 A GB 1335873A GB 1335873 A GB1335873 A GB 1335873A GB 1440624 A GB1440624 A GB 1440624A
Authority
GB
United Kingdom
Prior art keywords
urea
reaction vessel
water
production
produced
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
GB1335873A
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.)
Inventa AG fuer Forschung und Patentverwertung
Original Assignee
Inventa AG fuer Forschung und Patentverwertung
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
Priority to CH422472A priority Critical patent/CH562786A5/xx
Priority to AU53427/73A priority patent/AU466929B2/en
Priority to NL7303877A priority patent/NL7303877A/xx
Priority to DE19732314148 priority patent/DE2314148A1/en
Application filed by Inventa AG fuer Forschung und Patentverwertung filed Critical Inventa AG fuer Forschung und Patentverwertung
Priority to GB1335873A priority patent/GB1440624A/en
Publication of GB1440624A publication Critical patent/GB1440624A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C273/04—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 from carbon dioxide and ammonia

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1440624 Production of urea INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 2 Oct 1974 13358/73 Heading C2C Urea is produced from ammonia and carbon dioxide in a reaction vessel in which the reaction temperature is preferably at least 160‹ C., and water is continuously removed from the urea melt in the reaction vessel, so that the molar ratio of the water to the urea produced in the reaction vessel is preferably always less than 1. The water removal may be effected by withdrawing part at least of the gases present in the reaction vessel, separating the water in a partial condenser, and recycling the dried gases to the reaction vessel.
GB1335873A 1972-03-22 1973-07-03 Production of urea Expired GB1440624A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH422472A CH562786A5 (en) 1972-03-22 1972-03-22
AU53427/73A AU466929B2 (en) 1972-03-22 1973-03-19 Process for preparing urea
NL7303877A NL7303877A (en) 1972-03-22 1973-03-20
DE19732314148 DE2314148A1 (en) 1972-03-22 1973-03-21 PROCESS FOR OBTAINING UREA
GB1335873A GB1440624A (en) 1972-03-22 1973-07-03 Production of urea

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH422472A CH562786A5 (en) 1972-03-22 1972-03-22
GB1335873A GB1440624A (en) 1972-03-22 1973-07-03 Production of urea

Publications (1)

Publication Number Publication Date
GB1440624A true GB1440624A (en) 1976-06-23

Family

ID=25694953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1335873A Expired GB1440624A (en) 1972-03-22 1973-07-03 Production of urea

Country Status (5)

Country Link
AU (1) AU466929B2 (en)
CH (1) CH562786A5 (en)
DE (1) DE2314148A1 (en)
GB (1) GB1440624A (en)
NL (1) NL7303877A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001468A1 (en) * 1987-08-13 1989-02-23 Austral-Pacific Fertilizers Ltd. Process for enhanced urea production
US6342632B1 (en) 1995-02-01 2002-01-29 Urea Casale Process and plant for the production of urea with high conversion yield and low energy consumption

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001468A1 (en) * 1987-08-13 1989-02-23 Austral-Pacific Fertilizers Ltd. Process for enhanced urea production
US5053538A (en) * 1987-08-13 1991-10-01 Austral-Pacific Fertilizers Ltd. Process for enhanced urea production
US6730278B2 (en) 1995-01-27 2004-05-04 Urea Casale Process and plant for the production of urea with high conversion yield and low energy consumption
US6342632B1 (en) 1995-02-01 2002-01-29 Urea Casale Process and plant for the production of urea with high conversion yield and low energy consumption
EP0796244B2 (en) † 1995-02-01 2003-03-05 Urea Casale S.A. Process and plant for the production of urea with high conversion yield and low energy consumption

Also Published As

Publication number Publication date
AU466929B2 (en) 1975-11-13
AU5342773A (en) 1974-09-19
CH562786A5 (en) 1975-06-13
NL7303877A (en) 1973-09-25
DE2314148A1 (en) 1973-10-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee