Catalyst composition and process for oligomerization of ethylene
    4.
    发明授权
    Catalyst composition and process for oligomerization of ethylene 有权
    催化剂组合物和乙烯低聚方法

    公开(公告)号:US09561500B2

    公开(公告)日:2017-02-07

    申请号:US14908026

    申请日:2014-07-28

    Abstract: A catalyst composition including: (a) a chromium compound; (b) a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—NR5R6 or (B) R1R2P—N(R3)—P(XR7)R8 or R1R2P—N(R3)—P(XR7)2, with X=O or S, wherein R1, R2, R3, R4, R5, R6, R7 and R8 are independently C1-C10-alkyl, C6-C20-aryl, C3-C10-cycloalkyl, aralkyl, alkylaryl, or trialkylsilyl, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNP-unit is a member of the ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution; and (c) an activator or co-catalyst; and a process for tri- and/or tetramerization.

    Abstract translation: 本发明涉及一种催化剂组合物,其包含:(a)铬化合物; (b)一般结构的配体€ƒ€ƒ€ƒ€ƒ€ƒ(C)R 1 R 2 PN(R 3)-P(R 4)-NR 5 R 6或€ ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(D)R 1 R 2 PN(R 3)-P(XR 7)R 8或R 1 R 2 PN(R 3)-P(XR 7 )2,其中X = O或S,其中R 1,R 2,R 3,R 4,R 5,R 6,R 7和R 8独立地选自C 1 -C 10烷基,C 6 C 20 芳基,C 3 -C 10 - 环烷基,芳烷基,烷基芳基和三烷基甲硅烷基,或(A)和(B)的任何环状衍生物,其中PNPN单元或PNP-单元的P或N原子中的至少一个为 环系的成员,环体系由结构(A)或(B)的一种或多种构成化合物通过取代形成; 和(c)活化剂或助催化剂; 以及三 - 和/或四聚过程。

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