发明名称 |
CATALIZADOR DE POLIMERIZACION PARA LA PREPARACION DE POLI-OLEFINAS CON COMBINACIONES DE PROPIEDADES SOBRESALIENTES. |
摘要 |
The invention relates to a process for preparing a catalyst for the polymerization of olefins, which comprises: a) preparation of a finely divided silica xerogel, b) loading of the xerogel with chromium from a solution of chromium trioxide or a chromium compound which is converted into chromium trioxide under the conditions of step c), and c) activation of the resulting product at from 400 to 1100° C. in a water-free gas stream comprising oxygen in a concentration of above 10% by volume, wherein a fluoride doping with a fluorinating agent is carried out in step b) or in step c). Furthermore, the invention relates to a catalyst for the polymerization of olefins which is obtainable by the process of the invention and to a process for the polymerization of olefins in which an olefin or an olefin mixture is polymerized in the presence of a catalyst according to the invention.
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申请公布号 |
ES2230321(T3) |
申请公布日期 |
2005.05.01 |
申请号 |
ES20010940468T |
申请日期 |
2001.05.14 |
申请人 |
BASELL POLYOLEFINE GMBH |
发明人 |
MIHAN, SHAHRAM;LUX, MARTIN;ROHDE, WOLFGANG;DECKERS, ANDREAS;KOLLE, PETER;VOGT, HEINZ |
分类号 |
C08F4/02;C08F4/24;C08F10/00;C08F10/02;(IPC1-7):C08F10/00 |
主分类号 |
C08F4/02 |
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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