发明名称 |
Method for the preparation of metallocene catalysts |
摘要 |
Process of preparing silica-supported catalysts. A support material comprising silica particles impregnated with an alumoxane co-catalyst with at least one-half of the co-catalyst disposed within the internal pore volume of the silica is contacted with a dispersion of a metallocene catalyst in an aromatic solvent. The dispersion and support are mixed at a temperature of about 10° C. or less to enable the metallocene to become reactively supported on and impregnated within the alumoxane-impregnated silica particles. The supported catalyst is recovered from the aromatic solvent and washed with an aromatic hydrocarbon and then a paraffinic hydrocarbon at a temperature of about 10° C. or less. The washed catalyst is dispersed in a viscous mineral oil.
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申请公布号 |
US6777366(B2) |
申请公布日期 |
2004.08.17 |
申请号 |
US20010782752 |
申请日期 |
2001.02.13 |
申请人 |
FINA TECHNOLOGY, INC. |
发明人 |
GAUTHIER WILLIAM JOHN;LOPEZ MARGARITO;RAUSCHER DAVID JOHN;CAMPBELL, JR. DON GORDON;KERR MARGARET ELAINE |
分类号 |
C08F4/645;C08F4/642;C08F4/646;C08F4/659;C08F4/6592;C08F10/00;C08F110/06;(IPC1-7):B01J31/00;B01J37/00;C08F4/02;C08F4/60 |
主分类号 |
C08F4/645 |
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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