BR8105817A - Processo para sintese de ureia - Google Patents
Processo para sintese de ureiaInfo
- Publication number
- BR8105817A BR8105817A BR8105817A BR8105817A BR8105817A BR 8105817 A BR8105817 A BR 8105817A BR 8105817 A BR8105817 A BR 8105817A BR 8105817 A BR8105817 A BR 8105817A BR 8105817 A BR8105817 A BR 8105817A
- Authority
- BR
- Brazil
- Prior art keywords
- urea synthesis
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55126043A JPS5750954A (en) | 1980-09-12 | 1980-09-12 | Synthesis of urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8105817A true BR8105817A (pt) | 1982-06-08 |
Family
ID=14925238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8105817A BR8105817A (pt) | 1980-09-12 | 1981-09-11 | Processo para sintese de ureia |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4354040A (pt) |
| JP (1) | JPS5750954A (pt) |
| KR (1) | KR870000808B1 (pt) |
| BR (1) | BR8105817A (pt) |
| CA (1) | CA1174692A (pt) |
| DE (1) | DE3136137C2 (pt) |
| FR (1) | FR2490224A1 (pt) |
| GB (1) | GB2083472B (pt) |
| IN (1) | IN156283B (pt) |
| IT (1) | IT1139963B (pt) |
| NL (1) | NL8104158A (pt) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8104040A (nl) * | 1981-09-01 | 1983-04-05 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| JPS5867661A (ja) * | 1981-10-16 | 1983-04-22 | Mitsui Toatsu Chem Inc | 尿素合成法 |
| NL187393C (nl) * | 1982-11-26 | 1991-09-16 | V I Kucheryavy T M Bogdanova D | Werkwijze voor het bereiden van ureum. |
| NL8303425A (nl) * | 1983-10-06 | 1985-05-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8303888A (nl) * | 1983-11-13 | 1985-06-03 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| JPS6112998U (ja) * | 1984-06-29 | 1986-01-25 | 日本石油精製株式会社 | ポンプメカニカルシ−ルフラツシング系清浄装置 |
| NL8502228A (nl) * | 1985-08-12 | 1987-03-02 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8502227A (nl) * | 1985-08-12 | 1987-03-02 | 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 |
| NL8602769A (nl) * | 1986-11-03 | 1988-06-01 | Stamicarbon | Werkwijze voor het concentreren van een ureumoplossing en inrichting voor het uitvoeren van de werkwijze. |
| NL8602770A (nl) * | 1986-11-03 | 1988-06-01 | Stamicarbon | Werkwijze voor de bereiding van ureum. |
| IN169678B (pt) * | 1987-08-13 | 1991-11-30 | Austral Pacific Fertilizers | |
| JPH01204735A (ja) * | 1988-02-09 | 1989-08-17 | Nec Corp | 繊維強化複合材料 |
| ATE115555T1 (de) * | 1989-07-28 | 1994-12-15 | Chemie Linz Gmbh | Verfahren zur herstellung unsymmetrisch substituierter harnstoffe. |
| IT1232669B (it) * | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la produzione di urea con elevato rendimento energetico. |
| IT1232670B (it) * | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la purificazione delle acque reflue prodotte dagli impianti di produzione dell'urea. |
| ATE134994T1 (de) * | 1990-10-05 | 1996-03-15 | Urea Casale Sa | Verfahren zur herstellung von harnstoff mit unterschiedlichen leistungen sowie die implementierung in existierenden anlagen |
| US5276183A (en) * | 1991-01-29 | 1994-01-04 | Urea Casale S.A. | Process and plant for the production of urea |
| 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 |
| JP4358428B2 (ja) * | 2000-11-01 | 2009-11-04 | 東洋エンジニアリング株式会社 | 尿素製造方法 |
| ITMI20110804A1 (it) | 2011-05-10 | 2012-11-11 | Saipem Spa | "processo ad alta resa per la sintesi dell'urea" |
| ITMI20120013A1 (it) | 2012-01-09 | 2013-07-10 | Saipem Spa | Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper |
| DE102016217765A1 (de) * | 2016-09-16 | 2018-03-22 | Thyssenkrupp Ag | Anordnung und Verfahren zur Kondensation eines heißen sauren Gasgemischs |
| EP3896031A1 (en) * | 2020-04-17 | 2021-10-20 | Casale Sa | Revamping of ammonia-urea plants |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB948786A (en) * | 1959-10-23 | 1964-02-05 | Toyo Koatsu Ind Inc | An improvement in synthesis of urea |
| FR1423412A (fr) * | 1964-09-08 | 1966-01-03 | Snam Spa | Procédé pour la fabrication de l'urée par synthèse à partir de l'ammoniac et de l'anhydride carbonique, comportant un recyclage total de la partie non transformée en urée |
| US3301897A (en) * | 1965-11-08 | 1967-01-31 | Chemical Construction Corp | Process for urea synthesis |
| GB1131906A (en) * | 1966-02-15 | 1968-10-30 | Sumitomo Chemical Co | Method of synthesizing urea |
| CH498811A (de) * | 1967-05-22 | 1970-11-15 | Chemical Construction Corp | Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd |
| US3711544A (en) * | 1970-04-20 | 1973-01-16 | Lummus Co | Heat recovery in urea synthesis |
| DE2128450A1 (en) * | 1971-06-08 | 1972-12-28 | Chemical Construction Corp., New York, N.Y. (V.StA.) | Urea process from ammonia and carbon dioxide - improved by stripping recycle carbamate with feed carbon dioxide |
| NL172058C (nl) * | 1972-06-12 | 1983-07-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| 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 |
| US4110374A (en) * | 1976-03-02 | 1978-08-29 | Mitsui Toatsu Chemicals Inc. | Process for separating and recovering unreacted materials in urea synthesis |
| JPS52105125A (en) * | 1976-03-02 | 1977-09-03 | Mitsui Toatsu Chem Inc | Separation and recovery of unreacted material on urea synthesis |
| JPS5573651A (en) * | 1978-11-30 | 1980-06-03 | Toyo Eng Corp | Preparation 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 |
-
1980
- 1980-09-12 JP JP55126043A patent/JPS5750954A/ja active Granted
-
1981
- 1981-08-21 IN IN933/CAL/81A patent/IN156283B/en unknown
- 1981-09-01 US US06/298,302 patent/US4354040A/en not_active Expired - Lifetime
- 1981-09-04 GB GB8126791A patent/GB2083472B/en not_active Expired
- 1981-09-08 NL NL8104158A patent/NL8104158A/nl not_active Application Discontinuation
- 1981-09-10 IT IT23890/81A patent/IT1139963B/it active
- 1981-09-11 DE DE3136137A patent/DE3136137C2/de not_active Expired - Fee Related
- 1981-09-11 BR BR8105817A patent/BR8105817A/pt not_active IP Right Cessation
- 1981-09-11 KR KR1019810003385A patent/KR870000808B1/ko active
- 1981-09-11 CA CA000385737A patent/CA1174692A/en not_active Expired
- 1981-09-14 FR FR8117299A patent/FR2490224A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2490224A1 (fr) | 1982-03-19 |
| US4354040B1 (pt) | 1988-07-26 |
| IT8123890A0 (it) | 1981-09-10 |
| CA1174692A (en) | 1984-09-18 |
| GB2083472A (en) | 1982-03-24 |
| US4354040A (en) | 1982-10-12 |
| JPS6116384B2 (pt) | 1986-04-30 |
| IN156283B (pt) | 1985-06-15 |
| KR830007529A (ko) | 1983-10-21 |
| DE3136137A1 (de) | 1982-04-22 |
| JPS5750954A (en) | 1982-03-25 |
| NL8104158A (nl) | 1982-04-01 |
| FR2490224B1 (pt) | 1984-02-10 |
| IT1139963B (it) | 1986-09-24 |
| GB2083472B (en) | 1984-09-12 |
| KR870000808B1 (ko) | 1987-04-20 |
| DE3136137C2 (de) | 1993-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 11/09/96 |
|
| B15K | Others concerning applications: alteration of classification |
Ipc: C07C 273/04 (2006.01) |