气相氟化催化合成反式-1-氯-3,3,3-三氟丙烯的工艺研究  

Study on the Synthesis of Trans-1-chloro-3,3,3-trifluoropropene by Gas Phase Fluorination

作　　者：王瑞英 李丕永 WANG Ruiying;LI Piyong(Shandong Huaan New Material Co.,Ltd.,Zibo 255300,China)

机构地区：[1]山东华安新材料有限公司,山东淄博255300

出　　处：《有机氟工业》2023年第1期10-12,39,共4页Organo-Fluorine Industry

摘　　要：采用新型催化剂通过气相氟化1,1,1,3,3-五氯丙烷(R240fa)合成了反式-1-氯-3,3,3-三氟丙烯(R1233zd(E)),研究了反应温度、物料比和空速对合成R1233zd(E)的影响,并对催化剂的寿命以及催化剂的再生进行了试验研究。研究结果显示,最佳反应条件为反应温度220℃、空速500h^(-1):n(HF):n(R240fa)=20:1,在此条件下连续反应200h,R240fa的转化率和R1233zd(E)的选择性都大于92%。Trans-1-chloro-3,3,3-trifluoropropene(R1233zd(E))was synthesized by gas phase fluorination of 1,1,1,3,3-pentachloropropane(R240fa)using a novel catalyst.The effects of reaction temperature,material ratio and space velocity on the synthesis of R1233zd(E)were investigated.The life of the catalyst and the regeneration of the catalyst were tested.The results showed that the optimum reaction conditions were as follows:reaction temperature 220℃,space velocity 500 h^(-1),n(HF):n(R240fa)=20:1.Under these conditions,the conversion of R240fa and the selectivity of R1233zd(E)were more than 92%after 200 h continuous reaction.

关 键 词：反式-1-氯-3 3 3-三氟丙烯 五氯丙烷 氟化 催化 

分 类 号：TQ222.424[化学工程—有机化工]