ES285555A1 - AN IMPROVED PROCEDURE FOR RECYCLING UNREACTIONED CARBAMATE - Google Patents

AN IMPROVED PROCEDURE FOR RECYCLING UNREACTIONED CARBAMATE

Info

Publication number
ES285555A1
ES285555A1 ES0285555A ES285555A ES285555A1 ES 285555 A1 ES285555 A1 ES 285555A1 ES 0285555 A ES0285555 A ES 0285555A ES 285555 A ES285555 A ES 285555A ES 285555 A1 ES285555 A1 ES 285555A1
Authority
ES
Spain
Prior art keywords
recycling
carbamate
unreactioned
improved procedure
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
ES0285555A
Other languages
Spanish (es)
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of ES285555A1 publication Critical patent/ES285555A1/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
    • 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
    • Y02P20/141—Feedstock

Landscapes

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

Abstract

An improved process for recycling the unreacted carbamate, in the synthesis of urea based on ammonia and carbon dioxide, with two distillation stages, characterized by being used for absorbing the vapors produced by film absorbers as heat exchangers. (Machine-translation by Google Translate, not legally binding)
ES0285555A 1962-02-28 1963-02-27 AN IMPROVED PROCEDURE FOR RECYCLING UNREACTIONED CARBAMATE Expired ES285555A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT402162 1962-02-28

Publications (1)

Publication Number Publication Date
ES285555A1 true ES285555A1 (en) 1963-08-01

Family

ID=11112033

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0285555A Expired ES285555A1 (en) 1962-02-28 1963-02-27 AN IMPROVED PROCEDURE FOR RECYCLING UNREACTIONED CARBAMATE

Country Status (3)

Country Link
AT (1) AT245577B (en)
DE (1) DE1468245A1 (en)
ES (1) ES285555A1 (en)

Families Citing this family (3)

* 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
JPS5517346A (en) * 1978-07-24 1980-02-06 Toyo Eng Corp Synthetic method of urea
DE3874846T2 (en) * 1987-05-15 1993-04-15 Ammonia Casale Sa METHOD FOR PRODUCING UREA.

Also Published As

Publication number Publication date
DE1468245A1 (en) 1968-12-19
AT245577B (en) 1966-03-10

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