甲苯直接氯化制取对氯甲苯的催化剂选择

Selection of Catlyst to Makeup-Chlorototuene by Chlorine and Toluene

用改性的分子筛作催化剂、采用甲苯作原料、氧气作氯化剂制备对氯甲苯，反应类型为气固液非均相反应体系。通过多次试验筛选，初步选出一种比较理想的催化剂，对位的选择性接近５０％左右。

The experiment is based on molecular sieves which can catalytic toluene chlo-rination. The reaction is g-s-lnon-homogenous system one. A more ideal catalyst hasbeen found out by trial and error, which can make the reaction selectivity approching 50%.