气相催化氟化合成2-氯-3,3,3-三氟丙烯的工艺研究  

Synthesis of 2-chloro-3,3,3-trifluoropropene by gas-phase catalytic fluorination

作　　者：秦越 王博[1,2] 毛伟 白彦波[1,2] 郝志军 吕剑[1,2] QIN Yue;WANG Bo;MAO Wei;BAI Yan-bo;HAO Zhi-jun;LV Jian(State Key Laboratory of Fluorine ＆ Nitrogen Chemical,Xi＇ an 710065,China;Xi＇ an Modern Chemistry Research Institute,Xi＇ an 710065,China)

机构地区：[1]氟氮化工资源高效开发与利用国家重点实验室,陕西西安710065 [2]西安近代化学研究所,陕西西安710065

出　　处：《应用化工》2018年第5期941-944,共4页Applied Chemical Industry

基　　金：陕西省科技统筹创新工程计划项目(2015KTCL01-17)

摘　　要：采用Fe基氟化催化剂,由1,1,2,3-四氯丙烯(TCP)气相氟化合成2-氯-3,3,3-三氟丙烯(HCFO-1233xf),研究了反应温度、物料配比、接触时间对反应的影响,以及催化剂的寿命实验和再生实验。结果表明,最佳反应条件为:反应温度260℃,空速1 500 h^(-1),摩尔比HF∶TCP=15∶1,在此条件下,TCP的转化率100%,HCFO-1233xf的选择性98.9%,连续反应1 200 h后,TCP的转化率>99%,HCFO-1233xf的选择性>94%。Synthesis of 2-chloro-3,3,3-trifluoropropene（ HCFO-1233 xf） from 1,1,2,3-tetrachloropropene（ TCP） and anhydrous hydrogen fluoride was studied by gas-phase fluorination over Fe-based catalyst. The effect factors,including reaction temperature,ratio of HF/TCP,contact time,lifetime and regeneration of catalyst,were researched. The results indicated the optimal reaction condition： temperature 260 ℃,space velocity of 1 500 h（-1） and flow ratio of HF ∶ TCP = 15 ∶ 1. Under the optimal reaction condition,the conversion of TCP was 100% and the selectivity of HCFO-1233 xf was up to 98. 9%. After 1 200 h of continuous reaction,the conversion of TCP and the selectivity of HCFO-1233 xf were still above 99% and94% respectively.

关 键 词：2 3 3 3-四氟丙烯 2-氯-3 3 3-三氟丙烯 1 1 2 3-四氯丙烯 Fe基催化剂 催化氟化 

分 类 号：TQ222.424[化学工程—有机化工] TQ426.94