BE832357A - Procede pour la prevention de l'encrassement dans la polymerisation des olefines - Google Patents
Procede pour la prevention de l'encrassement dans la polymerisation des olefinesInfo
- Publication number
- BE832357A BE832357A BE159138A BE159138A BE832357A BE 832357 A BE832357 A BE 832357A BE 159138 A BE159138 A BE 159138A BE 159138 A BE159138 A BE 159138A BE 832357 A BE832357 A BE 832357A
- Authority
- BE
- Belgium
- Prior art keywords
- clouding
- olefins
- polymerization
- prevention
- 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
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)
- Polymerization Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49091476A JPS5830323B2 (ja) | 1974-08-12 | 1974-08-12 | オレフインノ ジユウゴウホウホウ |
Publications (1)
Publication Number | Publication Date |
---|---|
BE832357A true BE832357A (fr) | 1975-12-01 |
Family
ID=14027437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE159138A BE832357A (fr) | 1974-08-12 | 1975-08-12 | Procede pour la prevention de l'encrassement dans la polymerisation des olefines |
Country Status (5)
Country | Link |
---|---|
US (1) | US3956252A (fr) |
JP (1) | JPS5830323B2 (fr) |
BE (1) | BE832357A (fr) |
DE (1) | DE2535597C2 (fr) |
GB (1) | GB1505366A (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4182810A (en) * | 1978-04-21 | 1980-01-08 | Phillips Petroleum Company | Prevention of fouling in polymerization reactors |
JPS55106203A (en) * | 1979-01-19 | 1980-08-14 | Showa Denko Kk | Preparation of ethylenic polymer |
JPS5964604A (ja) * | 1982-10-06 | 1984-04-12 | Sumitomo Chem Co Ltd | ポリオレフインの製造方法 |
DE3476887D1 (en) * | 1984-10-08 | 1989-04-06 | Sumitomo Chemical Co | Process for producing ethylene copolymer |
EP0290055A1 (fr) * | 1984-10-08 | 1988-11-09 | Sumitomo Chemical Company, Limited | Procédé de préparation d'un copolymère d'éthylène |
US5026795A (en) * | 1987-02-24 | 1991-06-25 | Phillips Petroleum Co | Process for preventing fouling in a gas phase polymerization reactor |
DE3833445A1 (de) * | 1988-10-01 | 1990-04-05 | Basf Ag | Vermeidung von farbigen verunreinigungen bei der herstellung von ultrahochmolekularen ethylenpolymerisaten mittels eines titan enthaltenden katalysatorsystems |
DE3833444A1 (de) * | 1988-10-01 | 1990-04-05 | Basf Ag | Vermeidung von farbigen verunreinigungen bei der herstellung von ultrahochmolekularen ethylenpolymerisaten mittels eines titan enthaltenden katalysatorsystems |
FI101479B (fi) * | 1994-12-22 | 1998-06-30 | Borealis Polymers Oy | Menetelmä likaantumisen estämiseksi polymerointireaktoreissa |
FI104827B (fi) * | 1995-04-12 | 2000-04-14 | Borealis Polymers Oy | Menetelmä likaantumisen ja kerrostumisen estämiseksi kaasufaasireaktoreissa |
KR100380013B1 (ko) * | 1999-07-02 | 2003-04-14 | 주식회사 엘지화학 | 폴리올레핀의 제조 방법 |
US6916892B2 (en) * | 2001-12-03 | 2005-07-12 | Fina Technology, Inc. | Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene |
KR100615279B1 (ko) | 2005-01-20 | 2006-08-25 | 삼성토탈 주식회사 | 저밀도폴리에틸렌 관형반응기에서 저밀도폴리에틸렌의 생산성을 향상시키는 방법 |
RU2527945C2 (ru) * | 2009-01-08 | 2014-09-10 | Юнивейшн Текнолоджиз, Ллк | Добавка для процессов полимеризации полиолефинов |
BRPI1015318A2 (pt) * | 2009-04-10 | 2016-04-19 | Saudi Basic Ind Corp | processo para a produção de um polímero de etileno empregando um cromo contendo o catalisador |
US20110065846A1 (en) * | 2009-09-11 | 2011-03-17 | Abel Grosjean | Olefin polymerisation process |
KR101963526B1 (ko) * | 2015-03-25 | 2019-03-28 | 바젤 폴리올레핀 게엠베하 | 연속 기상 중합 공정 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3476730A (en) * | 1966-07-22 | 1969-11-04 | Huels Chemische Werke Ag | Process for low-pressure polymerization of alpha-olefines |
US3591572A (en) * | 1968-06-19 | 1971-07-06 | Stauffer Chemical Co | Polymerization process using n-hydrocarbyl - n - methylene sulfonates as dispersing agents |
JPS5038158B2 (fr) * | 1972-01-22 | 1975-12-08 | ||
DE2218345A1 (de) * | 1972-04-15 | 1973-10-31 | Hoechst Ag | Verfahren zur polymerisation von alpha-olefinen |
FR2185635B1 (fr) * | 1972-05-25 | 1974-07-26 | Solvay |
-
1974
- 1974-08-12 JP JP49091476A patent/JPS5830323B2/ja not_active Expired
-
1975
- 1975-08-04 US US05/601,604 patent/US3956252A/en not_active Expired - Lifetime
- 1975-08-08 DE DE2535597A patent/DE2535597C2/de not_active Expired
- 1975-08-11 GB GB33416/75A patent/GB1505366A/en not_active Expired
- 1975-08-12 BE BE159138A patent/BE832357A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE2535597C2 (de) | 1983-01-20 |
JPS5830323B2 (ja) | 1983-06-28 |
US3956252A (en) | 1976-05-11 |
DE2535597A1 (de) | 1976-02-26 |
JPS5123588A (en) | 1976-02-25 |
GB1505366A (en) | 1978-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE20 | Patent expired |
Owner name: SHOWA DENKO K.K. Effective date: 19950812 |