发明名称 |
Method for producing supported chrome catalysts and the use thereof for the polymerization of olefins |
摘要 |
The invention relates to a method for producing supported chromium catalysts for the polymerisation of olefins by loading a xerogel support with chromium by adding to the xerogel support a volume of a 0.025 to 15% by weight solution of a chromium compound or a volume of a solution comprising from 0.025 to 7.8% by weight of Cr which is essentially converted into a chromium(VI) compound on heating in a water-free stream of gas under oxidizing conditions at temperatures in the range from 300 to 1100° C. for a period of from 10 to 1000 minutes in a solvent which comprises a maximum of 20% by weight of water, and subsequently evaporating the solvent, where the volume of the chromium salt solution employed is smaller than the pore volume of the xerogel support.
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申请公布号 |
US6608151(B1) |
申请公布日期 |
2003.08.19 |
申请号 |
US20020070341 |
申请日期 |
2002.02.28 |
申请人 |
BASELL POLYOLEFINE GMBH |
发明人 |
DE LANGE PAULUS;FUNK GUIDO;DECKERS ANDREAS;KOELLE PETER |
分类号 |
C08F4/22;B01J23/26;B01J37/02;C08F4/02;C08F4/24;C08F10/00;C08F10/02;C08F210/16;(IPC1-7):C08F4/24 |
主分类号 |
C08F4/22 |
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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