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合成了SiO_2负载的聚铝氨烷(Al-N)、聚硅氨烷(Si-N)、聚钛氨烷(Ti-N)和聚锡氨烷(Sn-N)的钌-铬双金属络合物(M’-N-Ru-Cr,M’=Al、Si、Ti或Sn),考察了这些无机高分子-Ru-Cr双金属络合物对苯甲酸乙酯氢化反应生成环己基甲醇的催化作用,其催化活性顺序为:Al-N-Ru-Cr>Sn-N-Ru-Cr>Si-N-Ru-Cr>Ti-N-Ru-Cr.反应体系中加入适量的水可使Al-N-Ru-Cr的催化活性明显提高,改变Al-N-Ru-Cr的Ru/Cr比例或使用不同溶剂均对环己基甲醇的收率有显著的影响.用测定转化数的方法研究了Al-N-Ru-Cr的稳定性.
A series of Ru-Cr-Bi bimetallics, such as Al-N, Si-N, Ti-N and Sn-N, Complexes (M’-N-Ru-Cr, M ’= Al, Si, Ti or Sn) were used to study the hydrogenation reaction of these inorganic polymers -Ru-Cr bimetallic complexes with ethyl benzoate to form cyclohexyl Methanol, the order of catalytic activity is as follows: Al-N-Ru-Cr> Sn-N-Ru-Cr> Si-N-Ru-Cr> Ti-N-Ru- The catalytic activity of Al-N-Ru-Cr can be obviously improved, and the change of the ratio of Ru / Cr of Al-N-Ru-Cr or the use of different solvents all have a significant effect on the yield of cyclohexylmethanol. Methods The stability of Al-N-Ru-Cr was studied.