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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7307036A NL7307036A (hu) | 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 (hu) |
| JP (1) | JPS6117821B2 (hu) |
| AR (1) | AR198940A1 (hu) |
| AT (1) | AT347966B (hu) |
| BE (1) | BE815333A (hu) |
| BG (1) | BG27895A3 (hu) |
| BR (1) | BR7404152D0 (hu) |
| CA (1) | CA1020578A (hu) |
| CS (1) | CS195684B2 (hu) |
| DD (1) | DD113528A5 (hu) |
| DE (1) | DE2424618C2 (hu) |
| EG (1) | EG11438A (hu) |
| ES (1) | ES426480A1 (hu) |
| FI (1) | FI61305C (hu) |
| FR (1) | FR2230626B1 (hu) |
| GB (1) | GB1447914A (hu) |
| HU (1) | HU176432B (hu) |
| IE (1) | IE39437B1 (hu) |
| IL (1) | IL44851A (hu) |
| IN (1) | IN141227B (hu) |
| IT (1) | IT1013202B (hu) |
| NL (1) | NL7307036A (hu) |
| NO (1) | NO149812C (hu) |
| PL (1) | PL100430B1 (hu) |
| RO (1) | RO70082A (hu) |
| SE (1) | SE419215B (hu) |
| SU (1) | SU602115A3 (hu) |
| TR (1) | TR18194A (hu) |
| YU (1) | YU39306B (hu) |
| ZA (1) | ZA743141B (hu) |
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. |
| NL8104039A (nl) * | 1981-09-01 | 1983-04-05 | 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. |
| 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 |
| WO2020246886A1 (en) * | 2019-06-07 | 2020-12-10 | Stamicarbon B.V. | Urea plant with stripper and stripping method |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL108593C (hu) * | 1958-05-07 | |||
| GB948786A (en) * | 1959-10-23 | 1964-02-05 | Toyo Koatsu Ind Inc | An improvement in synthesis of urea |
| NL250349A (hu) * | 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 (hu) * | 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 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
- 1974-05-16 ZA ZA00743141A patent/ZA743141B/xx unknown
- 1974-05-17 IL IL44851A patent/IL44851A/en unknown
- 1974-05-17 DD DD178578A patent/DD113528A5/xx unknown
- 1974-05-18 RO RO7478834A patent/RO70082A/ro unknown
- 1974-05-20 YU YU1387/74A patent/YU39306B/xx unknown
- 1974-05-20 ES ES426480A patent/ES426480A1/es not_active Expired
- 1974-05-20 CS CS743593A patent/CS195684B2/cs unknown
- 1974-05-20 BG BG026745A patent/BG27895A3/xx unknown
- 1974-05-20 HU HU74UI216A patent/HU176432B/hu unknown
- 1974-05-20 NO NO741833A patent/NO149812C/no unknown
- 1974-05-21 DE DE2424618A patent/DE2424618C2/de not_active Expired
- 1974-05-21 EG EG187/74A patent/EG11438A/xx active
- 1974-05-21 AR AR253858A patent/AR198940A1/es active
- 1974-05-21 TR TR18194A patent/TR18194A/xx unknown
- 1974-05-21 IE IE1086/74A patent/IE39437B1/xx unknown
- 1974-05-21 SE SE7406809A patent/SE419215B/xx unknown
- 1974-05-21 IT IT51160/74A patent/IT1013202B/it active
- 1974-05-21 BE BE144565A patent/BE815333A/xx not_active IP Right Cessation
- 1974-05-21 GB GB2259574A patent/GB1447914A/en not_active Expired
- 1974-05-21 JP JP49057254A patent/JPS6117821B2/ja not_active Expired
- 1974-05-21 SU SU742034993A patent/SU602115A3/ru active
- 1974-05-21 BR BR4152/74A patent/BR7404152D0/pt unknown
- 1974-05-21 PL PL1974171291A patent/PL100430B1/pl unknown
- 1974-05-21 AT AT421674A patent/AT347966B/de not_active IP Right Cessation
- 1974-07-15 IN IN1573/CAL/1974A patent/IN141227B/en unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1876171B1 (en) | Apparatus for urea synthesis and method of improving the same | |
| US9981924B2 (en) | Integrated production of urea and melamine | |
| US20200172475A1 (en) | Urea Manufacturing Method And Urea Manufacturing Apparatus | |
| CN109070043B (zh) | 在控制缩二脲的情况下的尿素生产 | |
| JPH07196639A (ja) | プロピレンと過酸化水素の発熱反応のための連続法とそれに使用する触媒転換器 | |
| EP2797882B1 (en) | A process for synthesis of urea and a related arrangement for a reaction section of a urea plant | |
| EP0834501B1 (en) | Improved urea synthesis process and apparatus therefor | |
| CS195684B2 (en) | Process for preparing urea | |
| US9512069B2 (en) | Urea synthesis process and plant | |
| US20240262798A1 (en) | A process and plant for the synthesis of urea and melamine | |
| EP3233792B1 (en) | Process for urea production | |
| US9938247B2 (en) | Combined reactor for high-pressure synthesis of melamine | |
| EP0086805B1 (en) | Process for the preparation of urea | |
| US2881052A (en) | Production of chlorine dioxide | |
| US3446601A (en) | Device for preparing urea | |
| US6680407B2 (en) | Installation and process for the preparation of urea | |
| PL89777B1 (hu) | ||
| US3137725A (en) | Heat recovery in urea synthesis process | |
| JP7252365B2 (ja) | 尿素製造方法および装置 | |
| MXPA02011818A (es) | Proceso para la descomposicion de una solucion acuosa de carbamato proveniente de la seccion de recuperacion de urea de una planta de produccion de urea. | |
| EP0136764A2 (en) | Process for the preparation of urea | |
| AU718170B2 (en) | Improved urea synthesis process and apparatus therefor | |
| EP0086804A1 (en) | Process for the preparation of urea |