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US 2018/0155254 A1Published application
Method for oligomerization of olefins (amended)
AssigneeLG Chem, Ltd.
InventorsSeul Ki IM, Yong Ho LEE, Eun Ji SHIN, Ki Soo LEE, Jin Young PARK, Seok Pil SA, Yoon Ki HONG
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Abstract
The present disclosure relates to a method for oligomerization of olefins. The method for oligomerization of olefins according to the present disclosure not only provides excellent catalytic activity and stable process operation, but also exhibits high selectivity to 1-hexene or 1-octene by using a catalyst system including an activity modifier.
Claims9
A method for oligomerization of olefins comprising the steps of:
- preparing a catalyst composition comprising a ligand comprising at least one diphosphino aminyl moiety, a chromium source, and a cocatalyst represented by the following Chemical Formula 1;
- preparing a catalyst system by mixing the catalyst composition with an activity modifier represented by the following Chemical Formula 2;
- and
- contacting olefinic monomers with the catalyst system:
- R12—[Al(R11)—O]a—R13 [Chemical Formula 1]
- in Chemical Formula 1,
- R11, R12, and R13 are the same as or different from each other, and are independently hydrogen, a halogen, a C1-C20 hydrocarbyl group, or a C1-C20 hydrocarbyl group substituted with a halogen, and
- a is an integer of 2 or more;
- D(R21)3 [Chemical Formula 9]
- in Chemical Formula 2,
- D is aluminum or boron, and
- each R21 is the same as or different from each other, and are independently a C1-C20 hydrocarbyl group, or a C1-C20 hydrocarbyl group substituted with a halogen.
9 more elements
Dependencies are inferred from the claim text.