NL171703C - METHOD FOR THE PREPARATION OF UREA. - Google Patents
METHOD FOR THE PREPARATION OF UREA.Info
- Publication number
- NL171703C NL171703C NLAANVRAGE7104428,A NL7104428A NL171703C NL 171703 C NL171703 C NL 171703C NL 7104428 A NL7104428 A NL 7104428A NL 171703 C NL171703 C NL 171703C
- Authority
- NL
- Netherlands
- Prior art keywords
- urea
- preparation
- Prior art date
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 |
|---|---|---|---|
| IT2280470 | 1970-04-02 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL7104428A NL7104428A (en) | 1971-10-05 |
| NL171703B NL171703B (en) | 1982-12-01 |
| NL171703C true NL171703C (en) | 1985-02-18 |
Family
ID=11200606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7104428,A NL171703C (en) | 1970-04-02 | 1971-04-02 | METHOD FOR THE PREPARATION OF UREA. |
Country Status (24)
| Country | Link |
|---|---|
| JP (1) | JPS5529066B1 (en) |
| AT (1) | AT317910B (en) |
| BE (1) | BE765031A (en) |
| BR (1) | BR7101989D0 (en) |
| CH (1) | CH551386A (en) |
| CS (1) | CS182213B2 (en) |
| DE (1) | DE2116267C3 (en) |
| DK (1) | DK139815B (en) |
| EG (1) | EG10651A (en) |
| ES (1) | ES390189A1 (en) |
| FR (1) | FR2092554A5 (en) |
| GB (1) | GB1341497A (en) |
| HU (1) | HU164316B (en) |
| IE (1) | IE35308B1 (en) |
| IL (1) | IL36465A (en) |
| LU (1) | LU62905A1 (en) |
| NL (1) | NL171703C (en) |
| NO (1) | NO140055C (en) |
| RO (1) | RO63099A (en) |
| SE (1) | SE403370B (en) |
| TR (1) | TR16951A (en) |
| YU (1) | YU35755B (en) |
| ZA (1) | ZA712018B (en) |
| ZM (1) | ZM4671A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE787832A (en) * | 1971-09-02 | 1973-02-22 | Stamicarbon | PROCESS FOR THE PREPARATION OF UREA |
| JPS5811432B2 (en) * | 1979-10-08 | 1983-03-02 | 三井東圧化学株式会社 | Urea synthesis method |
| JPS57128669A (en) * | 1981-02-03 | 1982-08-10 | Toyo Eng Corp | Improvement of urea preparation process |
| EP0096151B1 (en) * | 1982-06-03 | 1986-07-23 | Montedison S.p.A. | Method for avoiding the corrosion of strippers in urea manufacturing plants |
| IT1209532B (en) * | 1984-04-20 | 1989-08-30 | Snam Progetti | PROCESS FOR THE SYNTHESIS OF UREA AND MATERIAL USED IN ITSELF. |
| CH679485A5 (en) * | 1989-12-29 | 1992-02-28 | Ammonia Casale Sa | |
| ITMI20071029A1 (en) * | 2007-05-22 | 2008-11-23 | Snam Progetti | IMPROVED PROCEDURE FOR THE SYNTHESIS OF UREA |
| ITMI20120013A1 (en) | 2012-01-09 | 2013-07-10 | Saipem Spa | PROCEDURE FOR THE SYNTHESIS OF UREA INCLUDING A STRIPPER FUND OF PASSIVATION |
| CN105246874B (en) | 2013-05-28 | 2018-06-12 | 东洋工程株式会社 | Urea synthesis method |
-
1971
- 1971-03-22 EG EG123/71A patent/EG10651A/en active
- 1971-03-22 IL IL36465A patent/IL36465A/en unknown
- 1971-03-29 IE IE396/71A patent/IE35308B1/en unknown
- 1971-03-29 ZA ZA712018A patent/ZA712018B/en unknown
- 1971-03-30 CS CS7100002290A patent/CS182213B2/en unknown
- 1971-03-30 TR TR16951A patent/TR16951A/en unknown
- 1971-03-31 FR FR7111263A patent/FR2092554A5/fr not_active Expired
- 1971-03-31 ES ES390189A patent/ES390189A1/en not_active Expired
- 1971-03-31 BE BE765031A patent/BE765031A/en not_active IP Right Cessation
- 1971-03-31 HU HUSA2184A patent/HU164316B/hu unknown
- 1971-04-01 DK DK156971AA patent/DK139815B/en not_active IP Right Cessation
- 1971-04-01 JP JP1927171A patent/JPS5529066B1/ja active Pending
- 1971-04-01 YU YU813/71A patent/YU35755B/en unknown
- 1971-04-01 LU LU62905D patent/LU62905A1/xx unknown
- 1971-04-01 NO NO1244/71A patent/NO140055C/en unknown
- 1971-04-02 BR BR1989/71A patent/BR7101989D0/en unknown
- 1971-04-02 DE DE2116267A patent/DE2116267C3/en not_active Expired
- 1971-04-02 AT AT284671A patent/AT317910B/en not_active IP Right Cessation
- 1971-04-02 NL NLAANVRAGE7104428,A patent/NL171703C/en not_active IP Right Cessation
- 1971-04-02 SE SE7104354A patent/SE403370B/en unknown
- 1971-04-02 CH CH487271A patent/CH551386A/en not_active IP Right Cessation
- 1971-04-02 ZM ZM46/71A patent/ZM4671A1/en unknown
- 1971-04-02 RO RO7100066459A patent/RO63099A/en unknown
- 1971-04-19 GB GB2597771*A patent/GB1341497A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IE35308B1 (en) | 1976-01-07 |
| DK139815C (en) | 1979-10-01 |
| DE2116267A1 (en) | 1971-10-14 |
| NL171703B (en) | 1982-12-01 |
| FR2092554A5 (en) | 1972-01-21 |
| EG10651A (en) | 1977-10-31 |
| YU35755B (en) | 1981-06-30 |
| NO140055C (en) | 1980-10-29 |
| JPS5529066B1 (en) | 1980-07-31 |
| HU164316B (en) | 1974-01-28 |
| DE2116267C3 (en) | 1980-04-24 |
| IE35308L (en) | 1971-10-02 |
| AT317910B (en) | 1974-09-25 |
| RO63099A (en) | 1978-09-15 |
| BE765031A (en) | 1971-08-16 |
| ZM4671A1 (en) | 1971-12-22 |
| SE403370B (en) | 1978-08-14 |
| YU81371A (en) | 1980-10-31 |
| BR7101989D0 (en) | 1973-02-22 |
| DK139815B (en) | 1979-04-23 |
| GB1341497A (en) | 1973-12-19 |
| NL7104428A (en) | 1971-10-05 |
| ZA712018B (en) | 1971-12-29 |
| TR16951A (en) | 1974-01-09 |
| LU62905A1 (en) | 1971-08-26 |
| CH551386A (en) | 1974-07-15 |
| NO140055B (en) | 1979-03-19 |
| CS182213B2 (en) | 1978-04-28 |
| IL36465A0 (en) | 1971-05-26 |
| ES390189A1 (en) | 1973-07-01 |
| IL36465A (en) | 1974-07-31 |
| DE2116267B2 (en) | 1974-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R1B | Notice of opposition during period of laying open | ||
| NP1G | Patent granted (not automatically) [patent specification modified] | ||
| V1 | Lapsed because of non-payment of the annual fee |