BRPI0213004B8 - processo para preparação de uréia - Google Patents
processo para preparação de uréiaInfo
- Publication number
- BRPI0213004B8 BRPI0213004B8 BRPI0213004A BR0213004A BRPI0213004B8 BR PI0213004 B8 BRPI0213004 B8 BR PI0213004B8 BR PI0213004 A BRPI0213004 A BR PI0213004A BR 0213004 A BR0213004 A BR 0213004A BR PI0213004 B8 BRPI0213004 B8 BR PI0213004B8
- Authority
- BR
- Brazil
- Prior art keywords
- extractor
- condenser
- inlet
- reactor
- urea
- 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)
Abstract
"processo para preparação de uréia". a presente invenção refere-se a um processo para a preparação de uréia a partir de amônia e dióxido de carbono, com a aplicação de um reator de síntese, um condensador, um depurador e um extrator, em que uma saída do extrator, através da qual uma corrente gasosa é descarregada durante a operação, é conectada funcionalmente à entrada do condensador e à entrada do reator, e em que uma saída do condensador é conectada funcionalmente a uma entrada do depurador e em que a mistura reacional obtida é extraída no extrator em contracorrente com um dos materiais de partida, em que a divisão da corrente gasosa do extrator para o condensador e reator é controlada, completa ou parcialmente, por um ou mais elementos de controle presentes na parte não comum da conexão funcional entre a saída do extrator e a entrada do condensador elou a entrada do reator.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1019081 | 2001-10-01 | ||
| NL1019081A NL1019081C2 (nl) | 2001-10-01 | 2001-10-01 | Werkwijze voor de bereiding van ureum. |
| PCT/NL2002/000626 WO2003029196A1 (en) | 2001-10-01 | 2002-09-26 | Process for the preparation of urea |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| BR0213004A BR0213004A (pt) | 2004-10-05 |
| BR0213004B1 BR0213004B1 (pt) | 2014-05-20 |
| BRPI0213004B8 true BRPI0213004B8 (pt) | 2016-09-13 |
Family
ID=19774103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0213004A BRPI0213004B8 (pt) | 2001-10-01 | 2002-09-26 | processo para preparação de uréia |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6921838B2 (pt) |
| CN (1) | CN1241911C (pt) |
| BR (1) | BRPI0213004B8 (pt) |
| CA (1) | CA2460516C (pt) |
| EA (1) | EA005603B1 (pt) |
| NL (1) | NL1019081C2 (pt) |
| UA (1) | UA79597C2 (pt) |
| WO (1) | WO2003029196A1 (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2396253C2 (ru) * | 2005-03-03 | 2010-08-10 | Уреа Казале С.А. | Способ получения мочевины и установка для его осуществления |
| EP1700847A1 (en) * | 2005-03-03 | 2006-09-13 | Urea Casale S.A. | Process for urea production and related plant |
| IT201700121364A1 (it) * | 2017-10-25 | 2019-04-25 | Saipem Spa | Apparato e metodo per il trattamento di vapori di processo provenienti da una sezione di concentrazione sottovuoto di un impianto urea |
| EP3838398A1 (en) * | 2019-12-20 | 2021-06-23 | Casale Sa | Combined reactor for high-pressure synthesis of melamine |
| CA3169983A1 (en) * | 2020-02-25 | 2021-09-02 | Casale Sa | Process and plant for the synthesis of urea |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8400839A (nl) | 1984-03-16 | 1985-10-16 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| DE69326881D1 (de) * | 1993-01-07 | 1999-12-02 | Urea Casale Sa | Verbessertes Verfahren zur Produktion von Harnstoff unter Verwendung eines Schrittes zur Kohlendioxidentfernung |
| EP1036787B1 (en) * | 1999-03-16 | 2003-06-04 | Urea Casale S.A. | Method for modernizing a urea production plant |
-
2001
- 2001-10-01 NL NL1019081A patent/NL1019081C2/nl not_active IP Right Cessation
-
2002
- 2002-09-26 BR BRPI0213004A patent/BRPI0213004B8/pt not_active IP Right Cessation
- 2002-09-26 CA CA2460516A patent/CA2460516C/en not_active Expired - Fee Related
- 2002-09-26 UA UA2004032413A patent/UA79597C2/uk unknown
- 2002-09-26 US US10/490,617 patent/US6921838B2/en not_active Expired - Lifetime
- 2002-09-26 EA EA200400504A patent/EA005603B1/ru not_active IP Right Cessation
- 2002-09-26 WO PCT/NL2002/000626 patent/WO2003029196A1/en not_active Application Discontinuation
- 2002-09-26 CN CN02819456.XA patent/CN1241911C/zh not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1241911C (zh) | 2006-02-15 |
| WO2003029196A1 (en) | 2003-04-10 |
| EA005603B1 (ru) | 2005-04-28 |
| UA79597C2 (uk) | 2007-07-10 |
| BR0213004B1 (pt) | 2014-05-20 |
| US6921838B2 (en) | 2005-07-26 |
| CA2460516C (en) | 2012-06-19 |
| EA200400504A1 (ru) | 2004-08-26 |
| CN1561330A (zh) | 2005-01-05 |
| BR0213004A (pt) | 2004-10-05 |
| CA2460516A1 (en) | 2003-04-10 |
| US20050038293A1 (en) | 2005-02-17 |
| NL1019081C2 (nl) | 2003-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B25A | Requested transfer of rights approved |
Owner name: STAMICARBON B.V. (NL) Free format text: TRANSFERIDO DE: DSM IP ASSETS B.V. |
|
| B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 20/05/2014, OBSERVADAS AS CONDICOES LEGAIS. |
|
| B16C | Correction of notification of the grant [chapter 16.3 patent gazette] |
Free format text: REFERENTE A PUBLICACAO DO DESPACHO 16.1 NA RPI 2263 DE 20.05.2014, QUANTO AO NOME DO TITULAR |
|
| B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time | ||
| B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |