BR9806869A - Processos para reduzir a taxa de reação do processo de polimerização pela adição de um desativador de catalisador e para a inativar um processo de reator. - Google Patents
Processos para reduzir a taxa de reação do processo de polimerização pela adição de um desativador de catalisador e para a inativar um processo de reator.Info
- Publication number
- BR9806869A BR9806869A BR9806869-5A BR9806869A BR9806869A BR 9806869 A BR9806869 A BR 9806869A BR 9806869 A BR9806869 A BR 9806869A BR 9806869 A BR9806869 A BR 9806869A
- Authority
- BR
- Brazil
- Prior art keywords
- inactivate
- processes
- reduce
- reaction rate
- catalyst deactivator
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1809—Controlling processes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00628—Controlling the composition of the reactive mixture
- B01J2208/00637—Means for stopping or slowing down the reaction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00245—Avoiding undesirable reactions or side-effects
- B01J2219/00272—Addition of reaction inhibitor
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
"PROCESSOS PARA REDUZIR A TAXA DE REAçãO DO PROCESSO DE POLIMERIZAçãO PELA ADIçãO DE UM DESATIVADOR DE CATALISADOR E PARA A INATIVAR UM PROCESSO DE REATOR". é exposto um processo para inativar uma reação de polimerização. O processo injeta uma quantidade suficiente de agente de desativação para desativar o catalisador, embora permitindo que a reação seja restabelecida simplesmente pela adição de catalisador fresco. O processo de inativar permite a manutenção de condições de reação de polimerização durante uma paralisação e reduz significativamente a quantidade de tempo associada com o restabelecimento de condições de reação de polimerização.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3448897P | 1997-01-13 | 1997-01-13 | |
US638298A | 1998-01-12 | 1998-01-12 | |
PCT/US1998/000553 WO1998030599A1 (en) | 1997-01-13 | 1998-01-13 | Temporary idling of a polymerization reaction |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9806869A true BR9806869A (pt) | 2000-04-18 |
Family
ID=26675552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9806869-5A BR9806869A (pt) | 1997-01-13 | 1998-01-13 | Processos para reduzir a taxa de reação do processo de polimerização pela adição de um desativador de catalisador e para a inativar um processo de reator. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0952990A1 (pt) |
JP (1) | JP2002514248A (pt) |
CN (1) | CN1239481A (pt) |
BR (1) | BR9806869A (pt) |
WO (1) | WO1998030599A1 (pt) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0959081A1 (en) | 1998-05-19 | 1999-11-24 | Bp Chemicals S.N.C. | Gas phase polymerisation process |
EP0959082A1 (en) | 1998-05-19 | 1999-11-24 | Bp Chemicals S.N.C. | Polymerisation process |
US6897269B2 (en) | 2002-12-27 | 2005-05-24 | Univation Technologies, Llc | Processes for transitioning between Ziegler-Natta and alumoxane-based single-site polymerization catalysts |
US6858684B2 (en) | 2002-12-30 | 2005-02-22 | Univation Technologies, Llc | Processes for transitioning between various polymerization catalysts |
US6949612B2 (en) | 2002-12-31 | 2005-09-27 | Univation Technologies, Llc | Processes for transitioning between metallocene and Ziegler-Natta polymerization catalysts |
US6833417B2 (en) | 2002-12-31 | 2004-12-21 | Univation Technologies, Llc | Processes for transitioning between chrome-based and mixed polymerization catalysts |
US6841630B2 (en) | 2002-12-31 | 2005-01-11 | Univation Technologies, Llc | Processes for transitioning between chrome-based and mixed polymerization catalysts |
DE102005035477A1 (de) * | 2005-07-26 | 2007-02-01 | Basell Polyolefine Gmbh | Verfahren zur Steuerung der relativen Aktivität der unterschiedlichen aktiven Zentren von Hybridkatalysatoren |
US8598283B2 (en) * | 2010-02-18 | 2013-12-03 | Univation Technologies, Llc | Methods for operating a polymerization reactor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5200502A (en) * | 1992-08-26 | 1993-04-06 | Union Carbide Chemicals & Plastics Technology Corporation | Deactivator reagent for olefin polymerization catalysts |
US5414063A (en) * | 1993-03-30 | 1995-05-09 | Huntsman Polypropylene Corporation | Process for the production of polypropylene |
BR9402553A (pt) * | 1993-06-28 | 1995-03-28 | Union Carbide Chem Plastic | Processo para controlar de forma reversível a atividade de uma reação de polimerização de olefina; processo para finalizar de forma reversível uma reação de polimerização de olefina; processo para finalizar e reiniciar uma reação de polimerização de olefina |
-
1998
- 1998-01-13 JP JP53121398A patent/JP2002514248A/ja active Pending
- 1998-01-13 CN CN 98801337 patent/CN1239481A/zh active Pending
- 1998-01-13 WO PCT/US1998/000553 patent/WO1998030599A1/en not_active Application Discontinuation
- 1998-01-13 EP EP98901780A patent/EP0952990A1/en not_active Withdrawn
- 1998-01-13 BR BR9806869-5A patent/BR9806869A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO1998030599A1 (en) | 1998-07-16 |
JP2002514248A (ja) | 2002-05-14 |
EP0952990A1 (en) | 1999-11-03 |
CN1239481A (zh) | 1999-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: INDEFERIDO O PRESENTE PEDIDO DE PATENTE COMO INVENCAO DE ACORDO COM O ART. 8O DA LPI. |
|
B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |