BE692926A - - Google Patents
Info
- Publication number
- BE692926A BE692926A BE692926A BE692926A BE692926A BE 692926 A BE692926 A BE 692926A BE 692926 A BE692926 A BE 692926A BE 692926 A BE692926 A BE 692926A BE 692926 A BE692926 A BE 692926A
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/12—Carbamic acid or thiocarbamic acid; Salts thereof
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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
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT143866 | 1966-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE692926A true BE692926A (fr) | 1967-07-20 |
Family
ID=11101458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE692926A BE692926A (fr) | 1966-01-21 | 1967-01-20 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE692926A (fr) |
| CH (1) | CH485674A (fr) |
| CS (1) | CS167219B2 (fr) |
| FR (1) | FR1508004A (fr) |
| GB (1) | GB1173195A (fr) |
| NL (1) | NL148879B (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL187393C (nl) * | 1982-11-26 | 1991-09-16 | V I Kucheryavy T M Bogdanova D | Werkwijze voor het bereiden van ureum. |
| EP3656759A1 (fr) * | 2018-11-22 | 2020-05-27 | Casale Sa | Procédé de synthèse de l'urée |
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1967
- 1967-01-16 NL NL676700668A patent/NL148879B/xx not_active IP Right Cessation
- 1967-01-17 FR FR91396A patent/FR1508004A/fr not_active Expired
- 1967-01-20 GB GB3058/67A patent/GB1173195A/en not_active Expired
- 1967-01-20 CH CH85567A patent/CH485674A/de not_active IP Right Cessation
- 1967-01-20 BE BE692926A patent/BE692926A/xx not_active IP Right Cessation
- 1967-01-23 CS CS533A patent/CS167219B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1173195A (en) | 1969-12-03 |
| NL6700668A (fr) | 1967-07-24 |
| FR1508004A (fr) | 1967-12-29 |
| CS167219B2 (fr) | 1976-04-29 |
| NL148879B (nl) | 1976-03-15 |
| DE1618636A1 (de) | 1971-04-01 |
| CH485674A (de) | 1970-02-15 |
| DE1618636B2 (de) | 1975-08-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: MONTECATINI EDISON S.P.A. Effective date: 19870120 |