Sk Innovation Co., Ltd.

Sk Global Chemical Co., Ltd.

Other

Taek Kyu Han

Sung Seok Chae

SAng Hyeon Kang

Myung Ahn Ok

Jae Ho Jung

Sang Ook Kang

Sung Kwan Kim

Kyung Ryang Wee

The present invention relates to a commercial reaction process for the selective oligomerization reaction of ethylene, and a method for efficiently removing reaction heat to be generated in a reaction and regulating the temperature of the reactor and, more specifically, to an oligomerization reaction process of ethylene by circulating a liquid mixture in the reactor, separating unreacted ethylene from this circulation flow by an apparatus for separating unreacted ethylene from the circulation flow, and then cooling the remaining mixture and reintroducing it to the reactor, thereby removing the reaction heat in the reactor and allowing temperature control.

Selective oligomerization reaction process of ethylene

Disclosed herein is a method of preparing 1-octene at high activity and high selectivity while stably maintaining reaction activity by tetramerizing ethylene using a chromium-based catalyst system comprising a transition metal or a transition metal precursor, a cocatalyst, and a P&#x2014;C&#x2014;C&#x2014;P backbone structure ligand represented by (R)(R)P&#x2014;(R)CHCH(R)&#x2014;P(R)(R).

Ethylene tetramerization catalyst system and method for preparing 1-octene using the same

Ethylene tetramerization catalyst systems and method for preparing 1-octene using the same

Disclosed herein is a catalyst system for selective oligomerization of ethylene, which comprises a P&#x2014;C&#x2014;C&#x2014;P frame-work ligand, which is (R)(R)P&#x2014;(R)CHCH(R)&#x2014;P(R)(R), and a chromium-based metal compound. Also disclosed is a method of greatly enhancing the activity and selectivity of oligomerization, such as trimerization or tetramerization, using a ligand having a specific steric arrangement structure.

Ethylene oligomerization catalyst systems having enhanced selectivity

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Daejeon, South Korea

Taek Kyu Han