发明名称 |
Methods of preparing a polymerization catalyst |
摘要 |
A method comprising contacting a support with a chromium-containing compound and a tin-containing compound to produce a catalyst precursor, and activating the catalyst precursor in a temperature range of from about 400° C. to about 700° C. to produce a polymerization catalyst. A method comprising contacting a support with a chromium-containing compound and a tin-containing compound to produce a catalyst precursor, activating the catalyst precursor in a temperature range of from about 400° C. to about 700° C. to produce a polymerization catalyst, and contacting the polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form polyethylene wherein the molecular weight distribution of the polyethylene is broadened.
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申请公布号 |
US2009275710(A1) |
申请公布日期 |
2009.11.05 |
申请号 |
US20080113061 |
申请日期 |
2008.04.30 |
申请人 |
MCDANIEL MAX P;COLLINS KATHY S |
发明人 |
MCDANIEL MAX P.;COLLINS KATHY S. |
分类号 |
C08F4/42;C08F4/06;C08F4/16 |
主分类号 |
C08F4/42 |
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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