【摘要】 以间二氯苯为原料、La2O3为催化剂,在KOH水溶液中水解生成间苯二酚.在高压反应釜中考察了反应温度、催化剂、pH、物料配比及搅拌速率对反应结果的影响.实验结果表明,间二氯苯水解的适宜工艺条件为:反应温度260℃、反应体系pH为13.4、V(水)∶V(间二氯苯)=15∶1、搅拌速率为400 r/min.在上述工艺条件下,间二氯苯转化率>70%,间苯二酚收率>20%.更多还原

【Abstract】 Resorcinol was prepared by hydrolysis of m-dichlorobenzene using La2O3 as catalyst.The effect of different factors on the hydrolysis reaction, such as reaction temperature,catalyst,pH and stirring rate was investigated at high pressure.The best reaction conditions were: temperature 260℃,pH=13.4,V(水)∶V(m-dichlorobenzene)=15∶1,stirring rate 400 r/min,the conversion of m-dichlorobenzene can reach 70%,and the yield can reach 20%.更多还原