关于邻氯甲苯多相催化异构化的研究国内至今未见报道.国外有关的报道也为数不多,而且反应都是在≥20kg/cm~2的加压下进行的,还未见到常压下气固相催化异构化的研究报道. “杀草丹”生产过程中有大量副产物邻氯甲苯,其经济价值不大.如果将它异构化得到对氯甲苯就可直接作为“杀草丹”的主要原料;所得间氯甲苯经催化水解为间甲酚,又是 There have been no reports on the heterogeneous catalytic isomerization of o-chlorotoluene in China so far, and few foreign reports have been reported, and the reactions are all carried out under the pressure of ≥20kg / cm ~ 2 Press gas-solid catalytic isomerization research reports. “Kill grass Dan” in the production of a large number of by-products o-chlorotoluene, its economic value is not small.If it is isomerized to p-chlorotoluene can be directly as a “ Kill grass Dan ”of the main raw materials; obtained by chlorocarbon toluene hydrolysis of meta-cresol, is