RO84765A - Procedeu pentru prepararea unei solutii concentrate de uree - Google Patents
Procedeu pentru prepararea unei solutii concentrate de ureeInfo
- Publication number
- RO84765A RO84765A RO82106866A RO10686682A RO84765A RO 84765 A RO84765 A RO 84765A RO 82106866 A RO82106866 A RO 82106866A RO 10686682 A RO10686682 A RO 10686682A RO 84765 A RO84765 A RO 84765A
- Authority
- RO
- Romania
- 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)
- Catalysts (AREA)
- Electroluminescent Light Sources (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Steroid Compounds (AREA)
- Compounds Of Unknown Constitution (AREA)
- Saccharide Compounds (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 (2)
| Publication Number | Publication Date |
|---|---|
| RO84765A true RO84765A (ro) | 1984-08-17 |
| RO84765B RO84765B (ro) | 1984-09-30 |
Family
ID=19837140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO106866A RO84765B (ro) | 1981-03-11 | 1982-03-10 | Procedeu pentru prepararea unei solutii concentrate de uree |
Country Status (22)
| Country | Link |
|---|---|
| EP (1) | EP0060511B1 (ro) |
| JP (1) | JPS57159756A (ro) |
| KR (1) | KR830009010A (ro) |
| AT (1) | ATE7905T1 (ro) |
| AU (1) | AU8125082A (ro) |
| BR (1) | BR8201298A (ro) |
| CS (1) | CS227344B2 (ro) |
| DD (1) | DD202535A5 (ro) |
| DE (1) | DE3260234D1 (ro) |
| ES (1) | ES8303302A1 (ro) |
| FI (1) | FI820829L (ro) |
| IL (1) | IL65220A0 (ro) |
| MA (1) | MA19404A1 (ro) |
| NL (1) | NL8101174A (ro) |
| NO (1) | NO820778L (ro) |
| OA (1) | OA07039A (ro) |
| PL (1) | PL235399A1 (ro) |
| PT (1) | PT74566B (ro) |
| RO (1) | RO84765B (ro) |
| YU (1) | YU48182A (ro) |
| ZA (1) | ZA821595B (ro) |
| ZW (1) | ZW4482A1 (ro) |
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 |
| YU34282B (en) * | 1967-12-14 | 1979-04-30 | Snam Progetti | Process for the decomposition and recyclation of unreacted ammonium carbamate into the reactor for the synthesis of carbamide |
| 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 (ro) * | 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 MA MA19609A patent/MA19404A1/fr unknown
- 1982-03-05 YU YU00481/82A patent/YU48182A/xx unknown
- 1982-03-10 ZW ZW44/82A patent/ZW4482A1/xx unknown
- 1982-03-10 KR KR1019820001030A patent/KR830009010A/ko not_active Ceased
- 1982-03-10 ZA ZA821595A patent/ZA821595B/xx unknown
- 1982-03-10 AU AU81250/82A patent/AU8125082A/en not_active Abandoned
- 1982-03-10 RO RO106866A patent/RO84765B/ro unknown
- 1982-03-10 IL IL65220A patent/IL65220A0/xx unknown
- 1982-03-10 BR BR8201298A patent/BR8201298A/pt unknown
- 1982-03-10 NO NO820778A patent/NO820778L/no unknown
- 1982-03-10 ES ES510282A patent/ES8303302A1/es not_active Expired
- 1982-03-10 FI FI820829A patent/FI820829L/fi not_active Application Discontinuation
- 1982-03-11 PT PT74566A patent/PT74566B/pt unknown
- 1982-03-11 CS CS821668A patent/CS227344B2/cs unknown
- 1982-03-11 EP EP82101925A patent/EP0060511B1/en not_active Expired
- 1982-03-11 OA OA57634A patent/OA07039A/xx unknown
- 1982-03-11 DD DD82238072A patent/DD202535A5/de unknown
- 1982-03-11 PL PL23539982A patent/PL235399A1/xx unknown
- 1982-03-11 DE DE8282101925T patent/DE3260234D1/de not_active Expired
- 1982-03-11 JP JP57037316A patent/JPS57159756A/ja active Pending
- 1982-03-11 AT AT82101925T patent/ATE7905T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RO84765B (ro) | 1984-09-30 |
| ES510282A0 (es) | 1983-02-01 |
| OA07039A (fr) | 1983-12-31 |
| BR8201298A (pt) | 1983-01-25 |
| PL235399A1 (ro) | 1982-10-11 |
| IL65220A0 (en) | 1982-05-31 |
| KR830009010A (ko) | 1983-12-17 |
| ZA821595B (en) | 1983-01-26 |
| FI820829A7 (fi) | 1982-09-12 |
| PT74566A (en) | 1982-04-01 |
| DE3260234D1 (en) | 1984-07-19 |
| NO820778L (no) | 1982-09-13 |
| ES8303302A1 (es) | 1983-02-01 |
| EP0060511A1 (en) | 1982-09-22 |
| DD202535A5 (de) | 1983-09-21 |
| EP0060511B1 (en) | 1984-06-13 |
| CS227344B2 (en) | 1984-04-16 |
| NL8101174A (nl) | 1982-10-01 |
| YU48182A (en) | 1985-03-20 |
| ZW4482A1 (en) | 1982-07-14 |
| MA19404A1 (fr) | 1982-10-01 |
| AU8125082A (en) | 1982-09-16 |
| FI820829L (fi) | 1982-09-12 |
| PT74566B (en) | 1983-11-07 |
| JPS57159756A (en) | 1982-10-01 |
| ATE7905T1 (de) | 1984-06-15 |
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