发明名称 |
Methods of Preparing a Catalyst |
摘要 |
A method comprising a) calcining a silica support at temperature in the range of from about 100° C. to about 500° C. to form a precalcined silica support; b) contacting the precalcined silica support with a titanium alkoxide to form a titanated support; c) subsequent to b), contacting the titanated support with a polyol to form a polyol associated titanated support (PATS); d) contacting at least one of the silica support, pre-calcined silica support, the titanated support, the PATS, or combinations thereof with a chromium-containing compound to form a polymerization catalyst precursor; e) drying the polymerization catalyst precursor to form a dried polymerization catalyst precursor; and f) calcining the dried polymerization catalyst precursor to produce a polymerization catalyst, wherein less than about 0.1 wt. % of a highly reactive volatile organic compound (HRVOC) is emitted during the calcining of the dried polymerization catalyst precursor. |
申请公布号 |
US2017015764(A1) |
申请公布日期 |
2017.01.19 |
申请号 |
US201615281514 |
申请日期 |
2016.09.30 |
申请人 |
Chevron Phillips Chemical Company LP |
发明人 |
Praetorius Jeremy M.;Schwerdtfeger Eric D.;McDaniel Max P.;Cymbaluk Ted H.;Boxell Connor D.;Collins Kathy S.;Solenberger Alan L. |
分类号 |
C08F10/02 |
主分类号 |
C08F10/02 |
代理机构 |
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代理人 |
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主权项 |
1. A pre-catalyst composition comprising (i) a precalcined silica support, (ii) a tetravalent titanium compound, (iii) a polyol, and (iv) a chromium-containing compound. |
地址 |
The Woodlands TX US |