BE443523A - - Google Patents
Info
- Publication number
- BE443523A BE443523A BE443523DA BE443523A BE 443523 A BE443523 A BE 443523A BE 443523D A BE443523D A BE 443523DA BE 443523 A BE443523 A BE 443523A
- Authority
- BE
- Belgium
Links
Classifications
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- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR928247T | 1941-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE443523A true BE443523A (fr) | 1900-01-01 |
Family
ID=9441637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE443523D BE443523A (fr) | 1941-03-18 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2498538A (fr) |
| BE (1) | BE443523A (fr) |
| CH (1) | CH226227A (fr) |
| FR (1) | FR928247A (fr) |
| GB (1) | GB587770A (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE443523A (fr) * | 1941-03-18 | 1900-01-01 | ||
| US2762843A (en) * | 1952-01-12 | 1956-09-11 | Boivin Jean Louis | Synthesis of guanidine from so co, and nh |
| US2932664A (en) * | 1956-11-13 | 1960-04-12 | Carbogen Corp | Manufacture of alkali carbamates |
| US2961464A (en) * | 1956-12-15 | 1960-11-22 | Stamicarbon | Urea concentration process |
| US3072721A (en) * | 1959-02-03 | 1963-01-08 | Allied Chem | Production of urea from ammonia and co2 |
| WO2009059615A1 (fr) * | 2007-11-07 | 2009-05-14 | Matthias Spicher | Procédé de production d'un engrais azoté à partir d'un matériau d'origine biogène et industrielle contenant de l'azote |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL25071C (fr) * | 1928-11-13 | 1900-01-01 | ||
| BE424783A (fr) * | 1936-12-09 | |||
| BE443523A (fr) * | 1941-03-18 | 1900-01-01 |
-
0
- BE BE443523D patent/BE443523A/xx unknown
-
1941
- 1941-03-18 FR FR928247D patent/FR928247A/fr not_active Expired
- 1941-11-19 CH CH226227D patent/CH226227A/fr unknown
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1942
- 1942-03-18 GB GB3593/42A patent/GB587770A/en not_active Expired
-
1947
- 1947-07-22 US US762813A patent/US2498538A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2498538A (en) | 1950-02-21 |
| CH226227A (fr) | 1943-03-31 |
| GB587770A (en) | 1947-05-06 |
| FR928247A (fr) | 1947-11-21 |