IT1152722B - Processo per la sintesi di urea - Google Patents
Processo per la sintesi di ureaInfo
- Publication number
- IT1152722B IT1152722B IT23775/82A IT2377582A IT1152722B IT 1152722 B IT1152722 B IT 1152722B IT 23775/82 A IT23775/82 A IT 23775/82A IT 2377582 A IT2377582 A IT 2377582A IT 1152722 B IT1152722 B IT 1152722B
- Authority
- IT
- Italy
- Prior art keywords
- urea
- synthesis
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56164150A JPS5867661A (ja) | 1981-10-16 | 1981-10-16 | 尿素合成法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8223775A0 IT8223775A0 (it) | 1982-10-15 |
| IT1152722B true IT1152722B (it) | 1987-01-07 |
Family
ID=15787686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT23775/82A IT1152722B (it) | 1981-10-16 | 1982-10-15 | Processo per la sintesi di urea |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4504679A (it) |
| JP (1) | JPS5867661A (it) |
| KR (1) | KR870001249B1 (it) |
| AR (1) | AR227990A1 (it) |
| BR (1) | BR8206031A (it) |
| CA (1) | CA1217201A (it) |
| DE (1) | DE3237653C2 (it) |
| FR (1) | FR2514759A1 (it) |
| GB (1) | GB2109372B (it) |
| IT (1) | IT1152722B (it) |
| NL (1) | NL8203941A (it) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8303425A (nl) * | 1983-10-06 | 1985-05-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| JPS63112552A (ja) * | 1986-10-30 | 1988-05-17 | Toyo Eng Corp | 未転化物の分離方法 |
| EP0544056B1 (en) * | 1991-11-14 | 1998-06-24 | Urea Casale S.A. | Process for urea production with differentiated yield reaction spaces |
| US6150555A (en) * | 1992-05-08 | 2000-11-21 | Urea Casale, S.A. | Process for urea production |
| CN1051075C (zh) * | 1992-12-23 | 2000-04-05 | 中国五环化学工程公司 | 二氧化碳气提法尿素生产工艺及装置 |
| EP0611753B1 (en) * | 1993-01-07 | 1999-10-27 | Urea Casale S.A. | Improved process for urea production involving a carbon dioxide stripping step |
| ZA96686B (en) * | 1995-02-01 | 1996-08-16 | Urea Casale Sa | Process and plant for the production of urea with high conversion yield and low energy consumption |
| US5597454A (en) * | 1995-04-06 | 1997-01-28 | Lee; Jing M. | Process for producing urea |
| NL1004977C2 (nl) * | 1997-01-13 | 1998-07-15 | Dsm Nv | Methode om de capaciteit van een bestaand ureum proces te verhogen. |
| EP2343274A1 (en) * | 2010-01-07 | 2011-07-13 | Stamicarbon B.V. | A urea stripping process for the production of urea |
| ITMI20110804A1 (it) * | 2011-05-10 | 2012-11-11 | Saipem Spa | "processo ad alta resa per la sintesi dell'urea" |
| JPWO2014192823A1 (ja) | 2013-05-28 | 2017-02-23 | 東洋エンジニアリング株式会社 | 尿素合成方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE790015A (fr) * | 1971-10-19 | 1973-04-12 | Mavrovic Ivo | Synthese de l'uree avec conversion et recuperation de chaleur ameliorees |
| JPS5535378B2 (it) * | 1973-02-14 | 1980-09-12 | ||
| JPS585190B2 (ja) * | 1975-09-22 | 1983-01-29 | 三井東圧化学株式会社 | 尿素合成における未反応物の分離回収方法 |
| JPS5268129A (en) * | 1975-12-05 | 1977-06-06 | Mitsui Toatsu Chem Inc | Recovery of unreacted material and heat on urea synthesis |
| JPS52105125A (en) * | 1976-03-02 | 1977-09-03 | Mitsui Toatsu Chem Inc | Separation and recovery of unreacted material on urea synthesis |
| US4110374A (en) * | 1976-03-02 | 1978-08-29 | Mitsui Toatsu Chemicals Inc. | Process for separating and recovering unreacted materials in urea synthesis |
| US4088684A (en) * | 1976-07-30 | 1978-05-09 | Ivo Mavrovic | Urea reactor effluent solution recycle in urea synthesis |
| IT1068268B (it) * | 1976-09-09 | 1985-03-21 | Snam Progetti | Procedimento per la produzione di urea e purificazione delle acque |
| NO150512C (no) * | 1977-05-05 | 1984-10-31 | Montedison Spa | Fremgangsmaate ved fremstilling av urea. |
| JPS5517346A (en) * | 1978-07-24 | 1980-02-06 | Toyo Eng Corp | Synthetic method of urea |
| JPS5811432B2 (ja) * | 1979-10-08 | 1983-03-02 | 三井東圧化学株式会社 | 尿素合成法 |
| US4296252A (en) * | 1980-05-23 | 1981-10-20 | Ivo Mavrovic | Urea synthesis process |
| JPS5750954A (en) * | 1980-09-12 | 1982-03-25 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| GB2089786B (en) * | 1980-12-23 | 1985-02-20 | Mitsui Toatsu Chemicals | Process for synthesizing urea |
-
1981
- 1981-10-16 JP JP56164150A patent/JPS5867661A/ja active Granted
-
1982
- 1982-09-30 US US06/430,557 patent/US4504679A/en not_active Expired - Lifetime
- 1982-10-11 AR AR290940A patent/AR227990A1/es active
- 1982-10-11 DE DE3237653A patent/DE3237653C2/de not_active Expired
- 1982-10-12 NL NL8203941A patent/NL8203941A/nl not_active Application Discontinuation
- 1982-10-15 IT IT23775/82A patent/IT1152722B/it active
- 1982-10-15 CA CA000413526A patent/CA1217201A/en not_active Expired
- 1982-10-15 BR BR8206031A patent/BR8206031A/pt unknown
- 1982-10-15 FR FR8217317A patent/FR2514759A1/fr not_active Withdrawn
- 1982-10-15 KR KR8204641A patent/KR870001249B1/ko active
- 1982-10-18 GB GB08229693A patent/GB2109372B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1217201A (en) | 1987-01-27 |
| AR227990A1 (es) | 1982-12-30 |
| DE3237653C2 (de) | 1984-07-19 |
| KR840001951A (ko) | 1984-06-07 |
| GB2109372B (en) | 1985-06-26 |
| DE3237653A1 (de) | 1983-05-19 |
| BR8206031A (pt) | 1983-09-13 |
| NL8203941A (nl) | 1983-05-16 |
| JPS6215070B2 (it) | 1987-04-06 |
| KR870001249B1 (ko) | 1987-06-29 |
| GB2109372A (en) | 1983-06-02 |
| FR2514759A1 (fr) | 1983-04-22 |
| JPS5867661A (ja) | 1983-04-22 |
| US4504679A (en) | 1985-03-12 |
| IT8223775A0 (it) | 1982-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19961030 |