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US 2025/0051491 A1Published application
Ethylene oligomerization catalyst including ligand compound, catalyst composition employing same, and method for producing ethylene oligomer by using same
AssigneeKorea Research Institute of Chemical Technology
InventorsDong Won HWANG, Changho YOO, Seung Hyeok CHA, Gwang Nam YUN
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Abstract
The present invention pertains to: an ethylene oligomerization catalyst containing a ligand compound; a catalyst composition employing same; and a method for producing an ethylene oligomer by using same. The catalyst exhibits excellent selectivity to oligomers and selectivity to 1-hexane, thus making it possible to mass-produce 1-hexane, which is an industrially useful chemical raw material, with high purity.
Claims11
An ethylene oligomerization catalyst comprising a chromium compound and a ligand compound represented by the following Chemical Formula 1:
- wherein
- L1 and L2 are independently of each other (C2-C4)alkylene;
- R1 to R4 are independently of one another hydrogen, (C1-C10)alkyl, (C3-C20)cycloalkyl, (C6-C20)aryl, (C6-C20)aryl(C1-C10)alkyl, or (C1-C10)alkoxy;
- and
- the aryl of R1 to R4 may be substituted by one or two or more substituents selected from the group consisting of (C1-C10)alkyl, (C6-C20)aryl, tri(C1-C10)alkylsilyl, and (C1-C10)alkoxy.
2 more elements
Dependencies are inferred from the claim text.