发明名称 |
BIMETALLIC CATALYSTS WITH HIGHER ACTIVITY |
摘要 |
Methods of preparing bimetallic catalysts are disclosed. The methods include the steps of providing a supported non-metallocene catalyst, contacting a slurry of the supported non-metallocene catalyst in a non- polar hydrocarbon with a solution of a metallocene compound and an alumoxane, and drying the contact product to obtain a supported bimetallic catalyst. The supported non-metallocene catalyst is prepared by dehydrating a particulate support material at a temperature of greater than 600 °C, preparing a slurry of the dehydrated support in a non-polar hydrocarbon, contacting the slurry with an organomagnesium compound and an alcohol, contacting the resulting slurry with a non-metallocene compound of a Group 4 or Group 5 transition metal, and drying the contact product to obtain a supported non-metallocene catalyst as a free-flowing powder. The bimetallic catalysts show increased activity relative to catalysts prepared using support materials dehydrated at lower temperatures.
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申请公布号 |
KR20050033541(A) |
申请公布日期 |
2005.04.12 |
申请号 |
KR20047008016 |
申请日期 |
2004.05.27 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
MINK, ROBERT I.;NOWLIN, THOMAS E.;SANTANA, ROBERT L.;SCHURZKY, KENNETH G.;SHIRODKAR, PRADEEP P. |
分类号 |
B01J31/22;C08F4/02;C08F4/60;C08F4/658;C08F4/659;C08F4/6592;C08F10/00;C08F10/02;(IPC1-7):B01J37/00 |
主分类号 |
B01J31/22 |
代理机构 |
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