气相氟化催化合成3,3,3-三氟丙烯的工艺研究  

Synthesis of 3,3,3-trifluoropropene-1 by gasous phase catalytic fluorination

作　　者：王博[1] 张伟[1] 寇联岗[1] 吕剑[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《应用化工》2007年第7期638-640,共3页Applied Chemical Industry

基　　金：国家技术创新计划(02CJ-05-04-36);中国兵器工业集团公司技术开发项目(2001796)

摘　　要：采用Cr基催化剂,对气相氟化1,1,1,3-四氯丙烷(TCP)合成3,3,3-三氟丙烯(TFP)进行了研究。包括反应温度、物料配比、空速,以及催化剂的寿命实验和再生实验。结果显示,最佳反应条件为260℃,1 500 h-1,HF∶TCP=15∶1,在此条件下连续反应200 h,TCP的转化率和TFP的选择性仍大于90%。Synthesis of 3,3,3 -trifluoropropene-1 （TFP） from 1,1,1,3 -tetrachloropropane （ TCP ） and anhydrous hydrogen fluoride by vapour-phase fluorination over Cr-based catalyst were studied, including reaction temperature, ratio of HF/TCP, space velocity, and lifetime and regeneration of catalyst. The results indicate that the optimal reaction condition are that：temperature is 260 ℃, space velocity of 1 500 h^-1 and flow ratio of HF： TCP = 15 ： 1. Under the optimal reaction condition, both of the conversion of 1,1,1, 3-tetrachloropropane and the selectivity of 3,3,3-trifluoropropene-1 were still above 90% after 200 h.

关 键 词：三氟丙烯 四氯丙烷 氟化 催化 

分 类 号：TQ222.424[化学工程—有机化工] TQ426.94