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在丙烯二聚反应中,由于丙烯分子的不对称性和同时进行着的双键的位移、顺反结构的转换以及低聚反应,其产品组成可能包含各种己烯异构体和九个碳以上的烯烃。这种分布可根据用途的不同,通过改变过渡金属有机络合物催化剂的组成和结构进行调节。我们试制了一些不同类型的镍系有机络合物倦化剂,考察了某些配位体对催化选择性的调变作用和不同烷基铝的活化效果,并结合二聚产品的应用,发展了一个活性高、选择性好、性能稳定的镍系高效催化剂。
In the propylene dimerization reaction, the product composition may contain various hexene isomers and nine carbons due to the asymmetry of propylene molecules and the simultaneous displacement of double bonds, cis-trans structure and oligomerization Above the olefin. This distribution can be tailored to the application by varying the composition and structure of the transition metal-organic complex catalyst. We have tried some different types of nickel organic chelating agents, investigated the effect of certain ligands on the catalytic selectivity and the activation effect of different aluminum alkyls, combined with the application of dimer products, the development A high activity, good selectivity, stable performance of nickel-based high-performance catalyst.