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将烯烃均相歧化催化剂WCl6-Bu4Sn中的WCl6成分用浸渍法负载于各种高分子载体上,用于庚烯-1的催化歧比反应。聚苯乙烯负载体系使庚烯-1歧化反应产率提高了近三倍,歧化反应选择性提高了近一倍,对实验结果分析表明:聚苯乙烯分子中的苯环侧基对钨成分弱的络合作用可能是催化剂活性提高的内在原因。
The WCl6 component in the olefin heterogeneous disproportionation catalyst WCl6-Bu4Sn was loaded onto various polymer supports by impregnation, and was used for the catalytic heterogeneous reaction of heptene-1. The polystyrene loading system increased the yield of heptene-1 disproportionation reaction nearly three-fold and the selectivity of disproportionation reaction almost doubled. The experimental results show that the side groups of the benzene ring in the polystyrene molecule are weak in the tungsten component The complexation may be the reason for the increase of catalyst activity.