BE431288A - - Google Patents
Info
- Publication number
- BE431288A BE431288A BE431288DA BE431288A BE 431288 A BE431288 A BE 431288A BE 431288D A BE431288D A BE 431288DA BE 431288 A BE431288 A BE 431288A
- Authority
- BE
- Belgium
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
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- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE207998X | 1938-01-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE431288A true BE431288A (xx) | 1938-12-31 |
Family
ID=5793993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE431288D BE431288A (xx) | 1938-01-06 | 1938-11-25 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE431288A (xx) |
| CH (1) | CH207998A (xx) |
| FR (1) | FR846559A (xx) |
| GB (1) | GB509987A (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH326525A (fr) * | 1950-07-26 | 1957-12-31 | Toyo Koatsu Ind Inc | Procédé pour la récupération de l'excédent d'ammoniaque dans la synthèse de l'urée |
| DE1051843B (de) * | 1953-04-22 | 1959-03-05 | Chemical Construction Corp | Verfahren zur Wiedergewinnung von Ammoniak aus einer Harnstoffsyntheseschmelze |
| 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 |
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1938
- 1938-11-24 FR FR846559D patent/FR846559A/fr not_active Expired
- 1938-11-25 BE BE431288D patent/BE431288A/xx unknown
- 1938-11-25 CH CH207998D patent/CH207998A/fr unknown
- 1938-12-02 GB GB35167/38A patent/GB509987A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB509987A (en) | 1939-07-25 |
| FR846559A (fr) | 1939-09-20 |
| CH207998A (fr) | 1939-12-31 |