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专利名称：Methods of Preparing a Catalyst发明人：Jeremy M. Praetorius,Eric D.
Schwerdtfeger,Max P. McDaniel,Ted H.Cymbaluk,Connor D. Boxell,Kathy S.Collins,Alan L. Solenberger
申请号：US14699533申请日：20150429
公开号：US20160319052A1公开日：20161103
摘要：A method comprising a) calcining a silica support at temperature in the range offrom about 100° C. to about 500° C. to form a precalcined silica support; b) contacting theprecalcined 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 polyolassociated 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 achromium-containing compound to form a polymerization catalyst precursor; e) dryingthe polymerization catalyst precursor to form a dried polymerization catalyst precursor;and f) calcining the dried polymerization catalyst precursor to produce a polymerizationcatalyst, 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.
申请人：Chevron Phillips Chemical Company LP
地址：The Woodlands TX US
国籍：US
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