【摘要】 研究了稀土元素对高分子负载Pt催化剂催化氢化氯代硝基苯反应的影响。结果表明:稀土元素的存在抑制了氯代硝基苯加氢反应活性,对产物氯代苯胺的选择性有不同程度的提高;碱NaOH存在时,PVP Pr Pt给出了90.8%的邻氯苯胺选择性,使用PVP La Pt时得到97 2%的间氯苯胺选择性,PVP Ce Pt催化体系获得了98.2%的对氯苯胺选择性。更多还原

【Abstract】 Effects of rare earth on the hydrogenation properties of chloronitrobenzene over polymeranchored platinum catalysts were investigated. The results show that the hydrogenation rate of CNB decreases obviously with the introduction of rare earth ions, and selectivity is improved to a certain extent. In the presence of NaOH, PVPPrPt, PVPLaPt and PVPCePt catalysts exhibits the highest selectivity in the hydrogenation reactions of chloronitrobenzene, and 90.8% for oCAN; 97.2% for mCAN and 98.2% for pCAN, respectively.更多还原