CS195684B2 - Process for preparing urea - Google Patents
Process for preparing urea Download PDFInfo
- Publication number
- CS195684B2 CS195684B2 CS743593A CS359374A CS195684B2 CS 195684 B2 CS195684 B2 CS 195684B2 CS 743593 A CS743593 A CS 743593A CS 359374 A CS359374 A CS 359374A CS 195684 B2 CS195684 B2 CS 195684B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- reaction zone
- ammonia
- zone
- carbon dioxide
- gas
- 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 |
|---|---|---|---|
| NL7307036A NL7307036A (fi) | 1973-05-21 | 1973-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS195684B2 true CS195684B2 (en) | 1980-02-29 |
Family
ID=19818895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS743593A CS195684B2 (en) | 1973-05-21 | 1974-05-20 | Process for preparing urea |
Country Status (30)
| Country | Link |
|---|---|
| US (1) | US3957868A (fi) |
| JP (1) | JPS6117821B2 (fi) |
| AR (1) | AR198940A1 (fi) |
| AT (1) | AT347966B (fi) |
| BE (1) | BE815333A (fi) |
| BG (1) | BG27895A3 (fi) |
| BR (1) | BR7404152D0 (fi) |
| CA (1) | CA1020578A (fi) |
| CS (1) | CS195684B2 (fi) |
| DD (1) | DD113528A5 (fi) |
| DE (1) | DE2424618C2 (fi) |
| EG (1) | EG11438A (fi) |
| ES (1) | ES426480A1 (fi) |
| FI (1) | FI61305C (fi) |
| FR (1) | FR2230626B1 (fi) |
| GB (1) | GB1447914A (fi) |
| HU (1) | HU176432B (fi) |
| IE (1) | IE39437B1 (fi) |
| IL (1) | IL44851A (fi) |
| IN (1) | IN141227B (fi) |
| IT (1) | IT1013202B (fi) |
| NL (1) | NL7307036A (fi) |
| NO (1) | NO149812C (fi) |
| PL (1) | PL100430B1 (fi) |
| RO (1) | RO70082A (fi) |
| SE (1) | SE419215B (fi) |
| SU (1) | SU602115A3 (fi) |
| TR (1) | TR18194A (fi) |
| YU (1) | YU39306B (fi) |
| ZA (1) | ZA743141B (fi) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210600A (en) * | 1976-10-28 | 1980-07-01 | Snamprogetti, S.P.A. | Method for the preparation of urea with a high-yield reactor |
| JPS5811432B2 (ja) * | 1979-10-08 | 1983-03-02 | 三井東圧化学株式会社 | 尿素合成法 |
| JPS57128669A (en) * | 1981-02-03 | 1982-08-10 | Toyo Eng Corp | Improvement of urea preparation process |
| NL8101174A (nl) * | 1981-03-11 | 1982-10-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8104040A (nl) * | 1981-09-01 | 1983-04-05 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8104039A (nl) * | 1981-09-01 | 1983-04-05 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8204979A (nl) * | 1982-12-24 | 1984-07-16 | Unie Van Kunstmestfab Bv | Werkwijze voor het bepalen en regelen van de samenstelling van waterige oplossingen van nh3 en co2. |
| NL8303425A (nl) * | 1983-10-06 | 1985-05-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| EP3178535A1 (en) * | 2015-12-11 | 2017-06-14 | Casale SA | A urea process with high-temperature stripping |
| AU2020288071B2 (en) * | 2019-06-07 | 2021-11-11 | Stamicarbon B.V. | Urea plant with stripper and stripping method |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU37175A1 (fi) * | 1958-05-07 | |||
| GB948786A (en) * | 1959-10-23 | 1964-02-05 | Toyo Koatsu Ind Inc | An improvement in synthesis of urea |
| NL101446C (fi) * | 1960-04-08 | |||
| US3406201A (en) * | 1965-06-18 | 1968-10-15 | Exxon Research Engineering Co | Urea synthesis |
| AT284138B (de) * | 1968-02-06 | 1970-09-10 | Snam Progetti | Verfahren zur Herstellung von Harnstoff |
| US3579636A (en) * | 1968-05-16 | 1971-05-18 | Ivo Mavrovic | Urea synthesis process |
| US3607937A (en) * | 1968-06-26 | 1971-09-21 | Mitsui Toatsu Chemicals | Two-stage urea synthesis |
| NL165712C (nl) * | 1970-05-30 | 1981-05-15 | Stamicarbon | Werkwijze en inrichting voor het bij synthesedruk terug- winnen van ammoniak en kooldioxyde uit het spuigas van een ureumsynthese. |
| US3816528A (en) * | 1970-11-16 | 1974-06-11 | Chemical Construction Corp | Urea synthesis process |
| US3785458A (en) * | 1972-04-14 | 1974-01-15 | Caterpillar Tractor Co | Lubrication system for a gear drive mechanism |
| JPS4910654A (fi) * | 1972-05-23 | 1974-01-30 |
-
1973
- 1973-05-21 NL NL7307036A patent/NL7307036A/xx not_active Application Discontinuation
-
1974
- 1974-05-15 CA CA199,987A patent/CA1020578A/en not_active Expired
- 1974-05-16 ZA ZA00743141A patent/ZA743141B/xx unknown
- 1974-05-16 FR FR7417005A patent/FR2230626B1/fr not_active Expired
- 1974-05-16 FI FI1521/74A patent/FI61305C/fi active
- 1974-05-16 US US05/470,663 patent/US3957868A/en not_active Expired - Lifetime
- 1974-05-17 DD DD178578A patent/DD113528A5/xx unknown
- 1974-05-17 IL IL44851A patent/IL44851A/en unknown
- 1974-05-18 RO RO7478834A patent/RO70082A/ro unknown
- 1974-05-20 ES ES426480A patent/ES426480A1/es not_active Expired
- 1974-05-20 YU YU1387/74A patent/YU39306B/xx unknown
- 1974-05-20 HU HU74UI216A patent/HU176432B/hu unknown
- 1974-05-20 NO NO741833A patent/NO149812C/no unknown
- 1974-05-20 CS CS743593A patent/CS195684B2/cs unknown
- 1974-05-20 BG BG7426745A patent/BG27895A3/xx unknown
- 1974-05-21 GB GB2259574A patent/GB1447914A/en not_active Expired
- 1974-05-21 PL PL1974171291A patent/PL100430B1/pl unknown
- 1974-05-21 AR AR253858A patent/AR198940A1/es active
- 1974-05-21 IE IE1086/74A patent/IE39437B1/xx unknown
- 1974-05-21 DE DE2424618A patent/DE2424618C2/de not_active Expired
- 1974-05-21 SE SE7406809A patent/SE419215B/xx unknown
- 1974-05-21 SU SU742034993A patent/SU602115A3/ru active
- 1974-05-21 TR TR18194A patent/TR18194A/xx unknown
- 1974-05-21 AT AT421674A patent/AT347966B/de not_active IP Right Cessation
- 1974-05-21 JP JP49057254A patent/JPS6117821B2/ja not_active Expired
- 1974-05-21 BE BE144565A patent/BE815333A/xx not_active IP Right Cessation
- 1974-05-21 EG EG187/74A patent/EG11438A/xx active
- 1974-05-21 IT IT51160/74A patent/IT1013202B/it active
- 1974-05-21 BR BR4152/74A patent/BR7404152D0/pt unknown
- 1974-07-15 IN IN1573/CAL/1974A patent/IN141227B/en unknown
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