BE488455A - - Google Patents
Info
- Publication number
- BE488455A BE488455A BE488455DA BE488455A BE 488455 A BE488455 A BE 488455A BE 488455D A BE488455D A BE 488455DA BE 488455 A BE488455 A BE 488455A
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21035A US2527315A (en) | 1948-04-14 | 1948-04-14 | Preparation of urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE488455A true BE488455A (xx) |
Family
ID=21801944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE488455D BE488455A (xx) | 1948-04-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2527315A (xx) |
| BE (1) | BE488455A (xx) |
| DE (1) | DE859149C (xx) |
| FR (1) | FR984223A (xx) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2769005A (en) * | 1956-10-30 | Process for the preparation of melamine | ||
| US2675301A (en) * | 1950-10-23 | 1954-04-13 | Kellogg M W Co | Production of hydrazine |
| US2717201A (en) * | 1950-10-23 | 1955-09-06 | Kellogg M W Co | Production of hydrazine |
| US2762843A (en) * | 1952-01-12 | 1956-09-11 | Boivin Jean Louis | Synthesis of guanidine from so co, and nh |
| CH343406A (de) * | 1955-03-12 | 1959-12-31 | Montedison Spa | Verfahren zur Herstellung von Melamin aus Harnstoff |
| US2933526A (en) * | 1956-02-25 | 1960-04-19 | Lonza Electric & Chem Works | Process for the manufacture of urea in granular form |
| US2916516A (en) * | 1956-03-09 | 1959-12-08 | Basf Ag | Evaporation of aqueous urea solutions |
| US2933527A (en) * | 1956-04-13 | 1960-04-19 | Lonza Electric & Chem Works | Process for the manufacture of urea in granular form |
| US2854482A (en) * | 1956-07-07 | 1958-09-30 | Lonza Electric & Chem Works | Process for the manufacture of urea |
| US3030193A (en) * | 1957-10-31 | 1962-04-17 | Montedison Spa | Reactor for preparing melamine |
| US3232982A (en) * | 1960-01-08 | 1966-02-01 | Pullman Inc | Urea synthesis |
| US3232983A (en) * | 1960-01-08 | 1966-02-01 | Pullman Inc | Urea synthesis |
| US3239522A (en) * | 1963-03-12 | 1966-03-08 | Chemical Construction Corp | Synthesis of urea and melamine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1923489A (en) * | 1928-06-27 | 1933-08-22 | Herbert J Krase | Synthesis of urea |
| US1937116A (en) * | 1931-01-02 | 1933-11-28 | Du Pont | Urea manufacture |
| US2267133A (en) * | 1939-02-20 | 1941-12-23 | Solvay Process Co | Process for treating urea synthesis effluents |
-
0
- BE BE488455D patent/BE488455A/xx unknown
-
1948
- 1948-04-14 US US21035A patent/US2527315A/en not_active Expired - Lifetime
-
1949
- 1949-04-05 FR FR984223D patent/FR984223A/fr not_active Expired
- 1949-04-07 DE DEP39113D patent/DE859149C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE859149C (de) | 1952-12-11 |
| US2527315A (en) | 1950-10-24 |
| FR984223A (fr) | 1951-07-03 |