ZA821595B - Process for the preparation of urea - Google Patents
Process for the preparation of ureaInfo
- Publication number
- ZA821595B ZA821595B ZA821595A ZA821595A ZA821595B ZA 821595 B ZA821595 B ZA 821595B ZA 821595 A ZA821595 A ZA 821595A ZA 821595 A ZA821595 A ZA 821595A ZA 821595 B ZA821595 B ZA 821595B
- Authority
- ZA
- South Africa
- Prior art keywords
- pressure
- stage
- urea
- pressure stage
- high pressure
- 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
-
- 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
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C275/02—Salts; Complexes; Addition compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Saccharide Compounds (AREA)
- Steroid Compounds (AREA)
- Compounds Of Unknown Constitution (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Catalysts (AREA)
- Electroluminescent Light Sources (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8101174A NL8101174A (nl) | 1981-03-11 | 1981-03-11 | Werkwijze voor de bereiding van ureum. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA821595B true ZA821595B (en) | 1983-01-26 |
Family
ID=19837140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA821595A ZA821595B (en) | 1981-03-11 | 1982-03-10 | Process for the preparation of urea |
Country Status (22)
| Country | Link |
|---|---|
| EP (1) | EP0060511B1 (xx) |
| JP (1) | JPS57159756A (xx) |
| KR (1) | KR830009010A (xx) |
| AT (1) | ATE7905T1 (xx) |
| AU (1) | AU8125082A (xx) |
| BR (1) | BR8201298A (xx) |
| CS (1) | CS227344B2 (xx) |
| DD (1) | DD202535A5 (xx) |
| DE (1) | DE3260234D1 (xx) |
| ES (1) | ES8303302A1 (xx) |
| FI (1) | FI820829L (xx) |
| IL (1) | IL65220A0 (xx) |
| MA (1) | MA19404A1 (xx) |
| NL (1) | NL8101174A (xx) |
| NO (1) | NO820778L (xx) |
| OA (1) | OA07039A (xx) |
| PL (1) | PL235399A1 (xx) |
| PT (1) | PT74566B (xx) |
| RO (1) | RO84765B (xx) |
| YU (1) | YU48182A (xx) |
| ZA (1) | ZA821595B (xx) |
| ZW (1) | ZW4482A1 (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1491526A1 (en) * | 2003-06-27 | 2004-12-29 | Urea Casale S.A. | Process and plant for urea production |
| EP3736415A1 (en) * | 2019-05-10 | 2020-11-11 | Yara International ASA | Steam network assembly for a plant comprising an ammonia-producing unit and a urea-producing unit |
| CN113416154B (zh) * | 2021-07-30 | 2023-01-17 | 新疆心连心能源化工有限公司 | 尿素合成未反应物循环回收方法及装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3406201A (en) * | 1965-06-18 | 1968-10-15 | Exxon Research Engineering Co | Urea synthesis |
| NL144927C (nl) * | 1967-12-14 | 1980-10-15 | Snam Progetti | Werkwijze voor het continu bereiden van ureum. |
| AT284138B (de) * | 1968-02-06 | 1970-09-10 | Snam Progetti | Verfahren zur Herstellung von Harnstoff |
| 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. |
| NL168506C (nl) * | 1970-12-31 | 1982-04-16 | Stamicarbon | Werkwijze voor de bereiding van ureum. |
| BE787832A (fr) * | 1971-09-02 | 1973-02-22 | Stamicarbon | Procede pour la preparation d'uree |
| NL7307036A (xx) * | 1973-05-21 | 1974-11-25 | ||
| NL7612162A (nl) * | 1976-11-03 | 1978-05-08 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van een ureum- oplossing uit nh3 en co2. |
-
1981
- 1981-03-11 NL NL8101174A patent/NL8101174A/nl not_active Application Discontinuation
-
1982
- 1982-03-05 YU YU00481/82A patent/YU48182A/xx unknown
- 1982-03-05 MA MA19609A patent/MA19404A1/fr unknown
- 1982-03-10 KR KR1019820001030A patent/KR830009010A/ko unknown
- 1982-03-10 IL IL65220A patent/IL65220A0/xx unknown
- 1982-03-10 BR BR8201298A patent/BR8201298A/pt unknown
- 1982-03-10 ES ES510282A patent/ES8303302A1/es not_active Expired
- 1982-03-10 ZW ZW44/82A patent/ZW4482A1/xx unknown
- 1982-03-10 NO NO820778A patent/NO820778L/no unknown
- 1982-03-10 RO RO106866A patent/RO84765B/ro unknown
- 1982-03-10 ZA ZA821595A patent/ZA821595B/xx unknown
- 1982-03-10 AU AU81250/82A patent/AU8125082A/en not_active Abandoned
- 1982-03-10 FI FI820829A patent/FI820829L/fi not_active Application Discontinuation
- 1982-03-11 JP JP57037316A patent/JPS57159756A/ja active Pending
- 1982-03-11 AT AT82101925T patent/ATE7905T1/de not_active IP Right Cessation
- 1982-03-11 DE DE8282101925T patent/DE3260234D1/de not_active Expired
- 1982-03-11 OA OA57634A patent/OA07039A/xx unknown
- 1982-03-11 PT PT74566A patent/PT74566B/pt unknown
- 1982-03-11 CS CS821668A patent/CS227344B2/cs unknown
- 1982-03-11 PL PL23539982A patent/PL235399A1/xx unknown
- 1982-03-11 DD DD82238072A patent/DD202535A5/de unknown
- 1982-03-11 EP EP82101925A patent/EP0060511B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| RO84765B (ro) | 1984-09-30 |
| ES510282A0 (es) | 1983-02-01 |
| NO820778L (no) | 1982-09-13 |
| ATE7905T1 (de) | 1984-06-15 |
| MA19404A1 (fr) | 1982-10-01 |
| CS227344B2 (en) | 1984-04-16 |
| EP0060511B1 (en) | 1984-06-13 |
| FI820829L (fi) | 1982-09-12 |
| DE3260234D1 (en) | 1984-07-19 |
| ES8303302A1 (es) | 1983-02-01 |
| PT74566A (en) | 1982-04-01 |
| EP0060511A1 (en) | 1982-09-22 |
| DD202535A5 (de) | 1983-09-21 |
| KR830009010A (ko) | 1983-12-17 |
| AU8125082A (en) | 1982-09-16 |
| PL235399A1 (xx) | 1982-10-11 |
| IL65220A0 (en) | 1982-05-31 |
| BR8201298A (pt) | 1983-01-25 |
| PT74566B (en) | 1983-11-07 |
| JPS57159756A (en) | 1982-10-01 |
| YU48182A (en) | 1985-03-20 |
| NL8101174A (nl) | 1982-10-01 |
| RO84765A (ro) | 1984-08-17 |
| OA07039A (fr) | 1983-12-31 |
| ZW4482A1 (en) | 1982-07-14 |
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