Hydrogenation of benzene to cyclohexene over polymer-supported ruthenium catalysts
Hydrogenation of benzene to cyclohexene over polymer-supported ruthenium catalysts
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DOI：
10.1016/1381-1169(95)00184-0
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发表时间：
1996-01
影响因子：
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通讯作者：
M. Hronec;Z. Cvengrošová;M. Králik;G. Palma;B. Corain
中科院分区：
文献类型：
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作者：
M. Hronec;Z. Cvengrošová;M. Králik;G. Palma;B. Corain
介绍了以活性炭和阴离子交联聚合物为载体的钌催化剂上苯部分液相加氢制环己烯的反应。在100-110°C、1.5MPa的压力下，在搪玻璃反应器中研究了聚合物载体的极性、溶剂的性质和锌添加剂对催化剂性能的影响。已经发现，在42-47%的苯转化率下，用负载在强亲水性微孔树脂上的Ru催化剂在水中观察到的对环己烯的选择性高于负载在木炭上的Ru所显示的选择性。水对催化剂性能的影响可能是在Ru颗粒周围形成合适的环境和分散在亲水性聚合物载体内的金属颗粒的良好可及性的结果。
Partial liquid-phase hydrogenation of benzene to cyclohexene over ruthenium catalysts supported on charcoal and anionic cross-linked polymers is described. The influence of the polarity of polymeric supports, nature of the solvent and the presence of zinc additives on the performance of the catalyst in a glass-lined reactor at 100–110°C and a pressure of 1.5 MPa have been studied. It has been found that at 42–47% conversion of benzene, the selectivity to cyclohexene, observed in water with Ru catalysts supported on a strongly hydrophilic microporous resin, is higher than that displayed by Ru supported on charcoal. The effect of water on the performance of the catalyst is probably a result of formation of a suitable environment around Ru particles and of a good accessibility of metal particles dispersed within the hydrophilic polymer support.