FIELD: technological processes.
SUBSTANCE: present invention relates to a high activity olefin polymerization catalyst comprising a boron-containing silica support and preparation thereof. Catalyst comprising a boron-containing silica support is characterised by that support is subjected to heat treatment at temperature from 400 to 800 °C in combination with treatment with a Lewis acid, using a boron compound, in which weight fraction of boron with respect to support is 0.5–0.7 %. Method of producing highly active catalyst for polymerising olefin includes following steps: (a) heat treatment of silica at temperature from 400 to 800 °C in an inert atmosphere; (b) treatment of silica obtained at step (a) with a Lewis acid, using a boron compound to obtain a boron-containing silica support; and (c) obtaining a catalyst on a silica support, obtained at step (b).
EFFECT: obtained catalyst has high activity and a narrow size distribution, which also prevents dusting.
14 cl, 14 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPONENT OF CATALYST FOR OLEFIN POLYMERIZATION | 1990 |
|
RU2032689C1 |
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|
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| COMPONENT OF CATALYST FOR OLEFIN POLYMERIZATION | 1992 |
|
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|
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|
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|
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|
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| COMPOSITE CATALYST FOR PRODUCING POLYETHYLENE, METHOD FOR PRODUCTION THEREOF AND METHOD OF PRODUCING POLYETHYLENE | 2008 |
|
RU2466145C2 |
| CATALYTIC COMPONENTS FOR POLYMERIZATION OF OLEFINS | 2003 |
|
RU2322457C2 |
| SUPPORTED ETHYLENE (CO) | 2000 |
|
RU2258711C2 |
