发明名称 |
METHODS OF PREPARING A POLYMERIZATION CATALYST |
摘要 |
<p>A method comprising (a) contacting a support and a chromium-containing compound to form chromium-containing support, (b) heat treating the chromium-containing support in an oxidizing atmosphere to form a treated support, (c) contacting the treated support with carbon monoxide to form a CO-contacted support, and (d) contacting the CO-contacted support with hydrogen to form a catalyst. A method comprising oxidizing a chromium-treated support to form a polymerization catalyst, contacting the polymerization catalyst with carbon monoxide to form a reduced polymerization catalyst, contacting the reduced polymerization catalyst with hydrogen to form an activated polymerization catalyst, and contacting the activated polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form a random copolymer. A method comprising reducing a polymerization catalyst comprising Cr(VI) to form a polymerization catalyst comprising Cr(II), and treating the polymerization catalyst comprising Cr(II) with hydrogen.</p> |
申请公布号 |
WO2010107478(A1) |
申请公布日期 |
2010.09.23 |
申请号 |
WO2010US00778 |
申请日期 |
2010.03.15 |
申请人 |
CHEVRON PHILLIPS CHEMICAL COMPANY LP;BENHAM, ELIZABETH A.;MCDANIEL, MAX P.;COLLINS, KATHY S.;WHARRY, STEPHEN M. |
发明人 |
BENHAM, ELIZABETH A.;MCDANIEL, MAX P.;COLLINS, KATHY S.;WHARRY, STEPHEN M. |
分类号 |
C08F10/02;C08F4/24;C08F4/69 |
主分类号 |
C08F10/02 |
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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