BE691752A - - Google Patents
Info
- Publication number
- BE691752A BE691752A BE691752DA BE691752A BE 691752 A BE691752 A BE 691752A BE 691752D A BE691752D A BE 691752DA BE 691752 A BE691752 A BE 691752A
- 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
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 |
|---|---|---|---|
| US65087657A | 1957-04-05 | 1957-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE691752A true BE691752A (fr) | 1967-05-29 |
Family
ID=24610667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE691752D BE691752A (fr) | 1957-04-05 | 1966-12-23 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3049563A (fr) |
| BE (1) | BE691752A (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585190B2 (ja) * | 1975-09-22 | 1983-01-29 | 三井東圧化学株式会社 | 尿素合成における未反応物の分離回収方法 |
| SE446978B (sv) * | 1977-05-05 | 1986-10-20 | Montedison Spa | Isobariskt dubbelatercirkulationsforfarande for syntetisering av urea under bildning av ammoniumkarbamat som mellanprodukt |
| DE69117641T2 (de) * | 1990-10-05 | 1996-10-02 | Urea Casale Sa | Verfahren zur Herstellung von Harnstoff mit unterschiedlichen Leistungen sowie die Implementierung in existierenden Anlagen |
| DE69222665T2 (de) * | 1991-01-15 | 1998-05-07 | Urea Casale Sa | Verfahren und Vorrichtung zur Verbesserung der Ausbeute und Herstellungspotential von Harnstoffreaktoren |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2212847A (en) * | 1940-08-27 | Process for the recovery anb keuti- | ||
| US1937116A (en) * | 1931-01-02 | 1933-11-28 | Du Pont | Urea manufacture |
| US2056283A (en) * | 1933-09-13 | 1936-10-06 | Atmospherie Nitrogen Corp | Process for the production of urea and an ammonium salt |
| US2214068A (en) * | 1939-01-20 | 1940-09-10 | Solvay Process Co | Process for the production of urea from ammonia and carbon dioxide containing inerts |
| US2701262A (en) * | 1953-02-02 | 1955-02-01 | Chemical Construction Corp | Urea purification |
| US2807574A (en) * | 1953-10-21 | 1957-09-24 | Hirano Masao | Treatment of unreacted ammonia in the manufacture of urea |
| US2848493A (en) * | 1955-06-27 | 1958-08-19 | Allied Chem | Process for synthesis of urea |
-
1962
- 1962-08-14 US US3049563D patent/US3049563A/en not_active Expired - Lifetime
-
1966
- 1966-12-23 BE BE691752D patent/BE691752A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3049563A (en) | 1962-08-14 |