SG40892G - Process for starting up the polymerisation of ethylene or copolymerisation of ethylene and at least one other alpha-olefin in the gas phase in the presence of a catalyst based on chromium oxide - Google Patents
Process for starting up the polymerisation of ethylene or copolymerisation of ethylene and at least one other alpha-olefin in the gas phase in the presence of a catalyst based on chromium oxideInfo
- Publication number
- SG40892G SG40892G SG40892A SG40892A SG40892G SG 40892 G SG40892 G SG 40892G SG 40892 A SG40892 A SG 40892A SG 40892 A SG40892 A SG 40892A SG 40892 G SG40892 G SG 40892G
- Authority
- SG
- Singapore
- Prior art keywords
- ethylene
- copolymerisation
- polymerisation
- olefin
- alpha
- Prior art date
Links
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/901—Monomer polymerized in vapor state in presence of transition metal containing catalyst
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/904—Monomer polymerized in presence of transition metal containing catalyst at least part of which is supported on a polymer, e.g. prepolymerized catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8416467A FR2572082B1 (fr) | 1984-10-24 | 1984-10-24 | Procede de demarrage de polymerisation d'ethylene ou de copolymerisation d'ethylene et d'alpha-olefine en phase gazeuse en presence de catalyseur a base d'oxyde de chrome |
Publications (1)
Publication Number | Publication Date |
---|---|
SG40892G true SG40892G (en) | 1992-10-02 |
Family
ID=9309055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG40892A SG40892G (en) | 1984-10-24 | 1992-04-14 | Process for starting up the polymerisation of ethylene or copolymerisation of ethylene and at least one other alpha-olefin in the gas phase in the presence of a catalyst based on chromium oxide |
Country Status (8)
Country | Link |
---|---|
US (1) | US5075395A (de) |
EP (1) | EP0179666B1 (de) |
JP (1) | JPH0764892B2 (de) |
CA (1) | CA1265894A (de) |
DE (1) | DE3574385D1 (de) |
FR (1) | FR2572082B1 (de) |
IN (1) | IN166754B (de) |
SG (1) | SG40892G (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2570381B1 (fr) * | 1984-09-17 | 1987-05-15 | Bp Chimie Sa | Procede de polymerisation d'ethylene ou de copolymerisation d'ethylene et d'alpha-olefine en lit fluidise en presence de catalyseur a base d'oxyde de chrome |
US4735931A (en) * | 1986-06-16 | 1988-04-05 | Phillips Petroleum Company | In situ comonomer generation in olefin polymerization |
JPS6368606A (ja) * | 1986-09-09 | 1988-03-28 | Idemitsu Petrochem Co Ltd | エチレン重合体の製造方法 |
ES2023417B3 (es) * | 1986-10-02 | 1992-01-16 | Bp Chem Int Ltd | Procedimiento para polimerizar una o mas 1-olefinas en fase gaseosa en presencia de material inorganico pulverulento. |
FR2609036B1 (fr) * | 1986-12-29 | 1989-04-14 | Bp Chimie Sa | Polymerisation ou copolymerisation d'ethylene en phase gazeuse en presence d'un prepolymere comprenant un catalyseur d'oxyde de chrome |
FI87575C (fi) * | 1990-02-20 | 1993-01-25 | Neste Oy | Foerfarande foer framstaellning av en ziegler-natta katalysator, foerfarande foer framstaellning av polyolefin genom att anvaenda sig av denna katalysator samt produkter som framstaellts med detta foerfarande |
FR2772384B1 (fr) | 1997-12-16 | 2000-02-04 | Bp Chemicals Snc | Procede de demarrage d'une polymerisation d'olefine en phase gazeuse |
US6114475A (en) * | 1998-04-06 | 2000-09-05 | Union Carbide Chemicals & Plastics Technology Corporation | Reactor drying by addition of compound that lowers boiling point of water |
ATE283294T1 (de) * | 2000-05-10 | 2004-12-15 | Repsol Quimica Sa | Verfahren zur herstellung von bimodalem polyethylen |
US6989344B2 (en) * | 2002-12-27 | 2006-01-24 | Univation Technologies, Llc | Supported chromium oxide catalyst for the production of broad molecular weight polyethylene |
US20100291334A1 (en) * | 2002-12-27 | 2010-11-18 | Univation Technologies, Llc | Broad Molecular Weight Polyethylene Having Improved Properties |
US20040167015A1 (en) * | 2003-02-26 | 2004-08-26 | Cann Kevin J. | Production of broad molecular weight polyethylene |
DE102005019395A1 (de) * | 2005-04-25 | 2006-10-26 | Basell Polyolefine Gmbh | Formmasse aus Polyethylen zur Folienherstellung und Verfahren zum Herstellen der Formmasse in Gegenwart eines Mischkatalysators |
JP6018362B2 (ja) * | 2008-02-27 | 2016-11-02 | ユニベーション・テクノロジーズ・エルエルシー | 修飾クロム系触媒およびそれを用いる重合方法 |
RU2515900C2 (ru) * | 2008-12-18 | 2014-05-20 | Юнивейшн Текнолоджиз, Ллк | Способ обработки зародышевого слоя реакции полимеризации |
US20100326017A1 (en) * | 2009-06-25 | 2010-12-30 | Darla Kindel | Protective Cover |
BR112012000454A2 (pt) * | 2009-07-09 | 2016-02-16 | Union Carbide Chem Plastic | processo de polimerização em fase gasosa para produzir polímero de polietileno, polímero de polietileno e sistema para melhorar iniciação de catalisador |
KR101465966B1 (ko) * | 2011-03-09 | 2014-11-28 | 에스케이텔레콤 주식회사 | 클라우드 환경에서의 데이터 암호화 처리 장치 및 방법 |
CA2959523C (en) | 2014-09-02 | 2023-01-03 | Univation Technologies, Llc | Polyolefin production with chromium-based catalysts |
EP3188830B1 (de) | 2014-09-02 | 2021-02-17 | Univation Technologies, LLC | Herstellung von polyolefinen mit chrombasierten katalysatoren |
CA3198541A1 (en) | 2014-09-02 | 2016-03-10 | Kevin R. GROSS | Polyolefin production with chromium-based catalysts |
WO2016085856A1 (en) | 2014-11-24 | 2016-06-02 | Univation Technologies, Llc | Composition comprising particles |
US10266618B2 (en) | 2014-11-24 | 2019-04-23 | Univation Technologies, Llc | Chromium-based catalyst compositions for olefin polymerization |
US10787526B2 (en) | 2018-04-06 | 2020-09-29 | Chevron Phillips Chemical Company Lp | Method for startup of a gas phase polymerization reactor |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2970135A (en) * | 1957-01-17 | 1961-01-31 | Phillips Petroleum Co | Polymerization process using a solid catalyst dispersion medium |
US3158594A (en) * | 1959-11-20 | 1964-11-24 | Grace W R & Co | Polymer process and catalyst |
NL7012509A (de) * | 1969-08-25 | 1971-03-01 | ||
FR2207145B1 (de) * | 1972-11-17 | 1975-09-12 | Naphtachimie Sa | |
FR2312512A1 (fr) * | 1975-05-27 | 1976-12-24 | Naphtachimie Sa | Procede de polymerisation des olefines en lit fluidise |
FI66400C (fi) * | 1978-04-18 | 1984-10-18 | Union Carbide Corp | Gasfasfoerfarande samt reaktorsystem foer framstaellning av olfinpolymerisat |
US4295991A (en) * | 1978-09-26 | 1981-10-20 | Exxon Research & Engineering Co. | Titanium trichloride catalyst component and the process for the production thereof |
CA1142162A (en) * | 1979-03-28 | 1983-03-01 | Paul L. Eve | Polymerisation process and products therefrom |
US4376191A (en) * | 1981-10-01 | 1983-03-08 | Union Carbide Corporation | Use of dialkylzinc compounds to initiate polymerization of ethylene with chromium oxide catalysts |
FR2517313B1 (fr) * | 1981-11-30 | 1985-12-06 | Ato Chimie | Procede de polymerisation en phase gazeuse faisant appel a la catalyse heterogene et reacteur spherique pour sa mise en oeuvre |
US4564660A (en) * | 1983-06-30 | 1986-01-14 | Union Carbide Corporation | Use of alkylaluminum compounds and hydroxyl-containing compounds to initiate polymerization of ethylene with chromium oxide catalysts |
FR2570381B1 (fr) * | 1984-09-17 | 1987-05-15 | Bp Chimie Sa | Procede de polymerisation d'ethylene ou de copolymerisation d'ethylene et d'alpha-olefine en lit fluidise en presence de catalyseur a base d'oxyde de chrome |
-
1984
- 1984-10-24 FR FR8416467A patent/FR2572082B1/fr not_active Expired
-
1985
- 1985-10-22 CA CA000493584A patent/CA1265894A/en not_active Expired - Fee Related
- 1985-10-24 DE DE8585307703T patent/DE3574385D1/de not_active Expired
- 1985-10-24 JP JP60238572A patent/JPH0764892B2/ja not_active Expired - Lifetime
- 1985-10-24 EP EP85307703A patent/EP0179666B1/de not_active Expired
- 1985-12-03 IN IN1020/DEL/85A patent/IN166754B/en unknown
-
1988
- 1988-02-11 US US07/157,169 patent/US5075395A/en not_active Expired - Lifetime
-
1992
- 1992-04-14 SG SG40892A patent/SG40892G/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2572082B1 (fr) | 1987-05-29 |
JPS61123606A (ja) | 1986-06-11 |
DE3574385D1 (en) | 1989-12-28 |
JPH0764892B2 (ja) | 1995-07-12 |
EP0179666B1 (de) | 1989-11-23 |
FR2572082A1 (fr) | 1986-04-25 |
CA1265894A (en) | 1990-02-13 |
EP0179666A1 (de) | 1986-04-30 |
US5075395A (en) | 1991-12-24 |
IN166754B (de) | 1990-07-14 |
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