发明授权
US08309779B2 Ethylene oligomerization catalyst systems having enhanced selectivity
有权
具有增强的选择性的乙烯低聚催化剂体系
- 专利标题： Ethylene oligomerization catalyst systems having enhanced selectivity
- 专利标题（中）： 具有增强的选择性的乙烯低聚催化剂体系
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申请号： US12733156申请日： 2007-12-24
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公开(公告)号： US08309779B2公开(公告)日： 2012-11-13
- 发明人: Taek Kyu Han , Sung Seok Chae , Sang Ook Kang , Kyung Ryang Wee , Sung Kwan Kim
- 申请人： Taek Kyu Han , Sung Seok Chae , Sang Ook Kang , Kyung Ryang Wee , Sung Kwan Kim
- 申请人地址： KR Seoul KR Seoul
- 专利权人： SK Innovation Co., Ltd.,SK Global Chemical Co., Ltd.
- 当前专利权人： SK Innovation Co., Ltd.,SK Global Chemical Co., Ltd.
- 当前专利权人地址： KR Seoul KR Seoul
- 代理机构： Abelman, Frayne & Schwab
- 优先权： KR10-2007-0082457 20070816
- 国际申请： PCT/KR2007/006797 WO 20071224
- 国际公布： WO2009/022770 WO 20090219
- 主分类号： C07C2/32
- IPC分类号： C07C2/32
摘要：
Disclosed herein is a catalyst system for selective oligomerization of ethylene, which comprises a P—C—C—P frame-work ligand, which is (R1)(R2)P—(R5)CHCH(R6)—P(R3)(R4), 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.