JPS5618610A - Polymerization of olefin - Google Patents
Polymerization of olefinInfo
- Publication number
- JPS5618610A JPS5618610A JP9468379A JP9468379A JPS5618610A JP S5618610 A JPS5618610 A JP S5618610A JP 9468379 A JP9468379 A JP 9468379A JP 9468379 A JP9468379 A JP 9468379A JP S5618610 A JPS5618610 A JP S5618610A
- Authority
- JP
- Japan
- Prior art keywords
- olefin
- solid catalyst
- chromium
- oxide
- precipitated product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polymerization Catalysts (AREA)
Abstract
PURPOSE: To polymerize an olefin in high yields, by polymerizing ethylene by use of a specific solid catalyst containing an oxide of trivalent chromium.
CONSTITUTION: A solid catalyst is prepared by adjusting an acidic aqueous solution, pH below 3, containing an alkali metal silicate such as sodium silicate or potassium silicate and a Cr(III) compound such as chromium nitrate or chromium oxide to a pH of 4W12 by the addition of an alkali and aging the solution for 1W20hr at 20W100°C, separating the precipitated product, drying the precipitated product at below 200°C and heat-treating the dried product at 200°C or higher, pref., 300W 600°C, in a nonoxidizing atmosphere. Then, ethylene alone or toghther with an α- olefin of at least 3C is (co)polymerized in the presence of the above solid catalyst.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9468379A JPS5831087B2 (en) | 1979-07-25 | 1979-07-25 | Olefin polymerization method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9468379A JPS5831087B2 (en) | 1979-07-25 | 1979-07-25 | Olefin polymerization method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5618610A true JPS5618610A (en) | 1981-02-21 |
JPS5831087B2 JPS5831087B2 (en) | 1983-07-04 |
Family
ID=14116998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9468379A Expired JPS5831087B2 (en) | 1979-07-25 | 1979-07-25 | Olefin polymerization method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5831087B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0085357A2 (en) * | 1982-01-20 | 1983-08-10 | Phillips Petroleum Company | Heating silica gel in inert atmosphere before activation |
EP0085857A2 (en) * | 1982-01-20 | 1983-08-17 | Phillips Petroleum Company | Aging of chromium-containing gel at high pH |
DE10316082B4 (en) * | 2002-08-06 | 2020-06-04 | Sumitomo Chemical Co. Ltd. | A process for producing an alpha olefin polymerization catalyst and a process for producing an alpha olefin polymer |
-
1979
- 1979-07-25 JP JP9468379A patent/JPS5831087B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0085357A2 (en) * | 1982-01-20 | 1983-08-10 | Phillips Petroleum Company | Heating silica gel in inert atmosphere before activation |
EP0085857A2 (en) * | 1982-01-20 | 1983-08-17 | Phillips Petroleum Company | Aging of chromium-containing gel at high pH |
DE10316082B4 (en) * | 2002-08-06 | 2020-06-04 | Sumitomo Chemical Co. Ltd. | A process for producing an alpha olefin polymerization catalyst and a process for producing an alpha olefin polymer |
Also Published As
Publication number | Publication date |
---|---|
JPS5831087B2 (en) | 1983-07-04 |
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