发明名称 |
CATALYSTS FOR STEREOSPECIFICALLY POLYMERIZING OLEFINS AND PROCESS FOR PREPARING SAME |
摘要 |
Process for preparing a solid catalyst component based on titanium trichloride, useful to polymerize stereospecifically olefins, comprising the following operations:
1) preparing a suspension of finely dispersed siliceous material of the diatomite type (diatomaceous earth) in a mixture of inert hydrocarbon solvent and of TiCl4;
2) reducing TiCl4 in said mixture to TiCl3 with aluminium-organic compound at low temperature;
3) washing the solid catalytic component so obtained with a hydrocarbon solvent, optionally after an activation step at 40 DEG -150 DEG C in the presence of an ether as complexing agent. |
申请公布号 |
DE2962947(D1) |
申请公布日期 |
1982.07.15 |
申请号 |
DE19792962947 |
申请日期 |
1979.05.29 |
申请人 |
MONTEDISON S.P.A. |
发明人 |
CALDO,CORNELIO, DR.;BASILI, LUIGI |
分类号 |
C08F4/64;C08F10/00;(IPC1-7):C08F4/64;C08F4/02 |
主分类号 |
C08F4/64 |
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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