发明名称 |
METHOD OF MAKING A ZIEGLER-NATTA CATALYST |
摘要 |
A method for making a Ziegler-Natta catalyst support includes the steps of contacting a fumed silica with a surface modifying agent such as a compound having the formula RMgX MgR'R'' wherein R, R' and R'' are each individually a moiety selected from an alkyl group, cycloalkyl, aryl or alkaryl group, and X is a halogen selected from the group consisting of chlorine, bromine and iodine, to provide a pretreated silica seeding agent. The pretreated silica seeding agent is then dispersed in a non-aqueous liquid magnesium halide/alkanol complex, and the magnesium halide is crystallized onto the silica particles to form catalyst support particles especially suitable for Ziegler-Natta catalysts. |
申请公布号 |
EP1802668(A1) |
申请公布日期 |
2007.07.04 |
申请号 |
EP20050809825 |
申请日期 |
2005.08.16 |
申请人 |
NOVOLEN TECHNOLOGY HOLDINGS, C.V. |
发明人 |
KLENDWORTH, DOUGLAS, D.;SPAETHER, FRANK, WOLF |
分类号 |
C08F10/00;C08F4/02;C08F4/654;C08F10/06;C08F110/06 |
主分类号 |
C08F10/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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