FR846559A - Process for the dehydration of mixtures of carbonic acid and ammonia - Google Patents

Process for the dehydration of mixtures of carbonic acid and ammonia

Info

Publication number
FR846559A
FR846559A FR846559DA FR846559A FR 846559 A FR846559 A FR 846559A FR 846559D A FR846559D A FR 846559DA FR 846559 A FR846559 A FR 846559A
Authority
FR
France
Prior art keywords
dehydration
ammonia
mixtures
carbonic acid
carbonic
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
Other languages
French (fr)
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.)
ALAIS
Original Assignee
ALAIS
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 ALAIS filed Critical ALAIS
Application granted granted Critical
Publication of FR846559A publication Critical patent/FR846559A/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
FR846559D 1938-01-06 1938-11-24 Process for the dehydration of mixtures of carbonic acid and ammonia Expired FR846559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE207998X 1938-01-06

Publications (1)

Publication Number Publication Date
FR846559A true FR846559A (en) 1939-09-20

Family

ID=5793993

Family Applications (1)

Application Number Title Priority Date Filing Date
FR846559D Expired FR846559A (en) 1938-01-06 1938-11-24 Process for the dehydration of mixtures of carbonic acid and ammonia

Country Status (4)

Country Link
BE (1) BE431288A (en)
CH (1) CH207998A (en)
FR (1) FR846559A (en)
GB (1) GB509987A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH326525A (en) * 1950-07-26 1957-12-31 Toyo Koatsu Ind Inc Process for the recovery of excess ammonia in the synthesis of urea
DE1051843B (en) * 1953-04-22 1959-03-05 Chemical Construction Corp Process for the recovery of ammonia from a urea synthesis melt
YU34282B (en) * 1967-12-14 1979-04-30 Snam Progetti Process for the decomposition and recyclation of unreacted ammonium carbamate into the reactor for the synthesis of carbamide

Also Published As

Publication number Publication date
GB509987A (en) 1939-07-25
CH207998A (en) 1939-12-31
BE431288A (en) 1938-12-31

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