CH326158A - Process for the production of pure urea - Google Patents

Process for the production of pure urea

Info

Publication number
CH326158A
CH326158A CH326158DA CH326158A CH 326158 A CH326158 A CH 326158A CH 326158D A CH326158D A CH 326158DA CH 326158 A CH326158 A CH 326158A
Authority
CH
Switzerland
Prior art keywords
production
pure urea
urea
pure
Prior art date
Application number
Other languages
German (de)
Inventor
Charles Dr Cramer
Walter Dr Feisst
Meyer Hans-Peter Ing Dipl
Original Assignee
Inventa Ag
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 Inventa Ag filed Critical Inventa Ag
Publication of CH326158A publication Critical patent/CH326158A/en

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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C275/04—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms
    • 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
CH326158D 1954-05-17 1954-05-17 Process for the production of pure urea CH326158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH775933X 1954-05-17

Publications (1)

Publication Number Publication Date
CH326158A true CH326158A (en) 1957-12-15

Family

ID=4535815

Family Applications (1)

Application Number Title Priority Date Filing Date
CH326158D CH326158A (en) 1954-05-17 1954-05-17 Process for the production of pure urea

Country Status (4)

Country Link
CH (1) CH326158A (en)
DE (1) DE1033197B (en)
FR (1) FR1132401A (en)
GB (1) GB775933A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL77361C (en) * 1953-04-15

Also Published As

Publication number Publication date
GB775933A (en) 1957-05-29
DE1033197B (en) 1958-07-03
FR1132401A (en) 1957-03-11

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