公开(公告)号：US5480850A

公开(公告)日：1996-01-02

申请号：US83988

申请日：1993-06-28

申请人： Kevin J. Cann ,  James W. Nicoletti ,  Sergey A. Vasnetsov

发明人： Kevin J. Cann ,  James W. Nicoletti ,  Sergey A. Vasnetsov

IPC分类号： C08F2/34 ,  C08F4/60 ,  C08F4/68 ,  C08F8/00 ,  C08F10/00 ,  C08F210/00 ,  C08F210/02 ,  C08F210/16

CPC分类号： C08F10/00

摘要： A catalyst system comprising:(a) a catalyst precursor consisting essentially of the reaction product of vanadium (acetylacetonate).sub.3 and a compound having the formula AlR.sub.(3-a) X.sub.a wherein each R is independently alkyl having 1 to 14 carbon atoms; each X is independently chlorine, bromine, or iodine; and a is 1 or 2; the atomic ratio of aluminum to vanadium in the precursor is 1:1 to 3:1; and the oxidation state of the vanadium in the reaction product is plus 2;(b) optionally, a support for said precursor; and(c) a halide substituted hydrocarbyl aluminum cocatalyst; and(d) optionally, a promoter, which is a chlorinated ester having at least 2 chlorine atoms; a saturated or unsaturated aliphatic halocarbon having at least 3 carbon atoms and at least 6 halogen atoms; or a haloalkyl substituted aromatic hydrocarbon wherein the haloalkyl substituent has at least 3 halogen atoms.

摘要翻译： 一种催化剂体系，包括：（a）主要由钒（乙酰丙酮）钒和具有式AlR（3-a）Xa的化合物的反应产物组成的催化剂前体，其中每个R独立地为具有1至14个碳原子的烷基; 每个X独立地是氯，溴或碘; a为1或2; 前体中铝与钒的原子比为1：1〜3：1; 反应产物中钒的氧化态为加2; （b）任选地，所述前体的载体; 和（c）卤化物取代的烃基铝助催化剂; 和（d）任选地，具有至少2个氯原子的氯化酯的促进剂; 具有至少3个碳原子和至少6个卤素原子的饱和或不饱和脂族卤代烃; 或卤代烷基取代的芳族烃，其中卤代烷基取代基具有至少3个卤素原子。