1种联产七氟丙烷等多种氢氟烃产品的方法研究  

Study on Co-Production of Heptafluoropropane and Various Hydrofluorocarbon Products

作　　者：王爱国 陆超 刘群 张涵 余慧梅 任亚文 WANG Aiguo;LU Chao;LIU Qun;ZHAGN Han;YU Huimei;REN Yawen(Zhejiang Jinju Chemical Co.Ltd;Zhejiang Tianshuo Fluorosilicon New Material Technology Co.Ltd;Zhejiang Quhua Fluor-Chemistry Co.Ltd.:Quzhou,Zhejiang 324004)

机构地区：[1]浙江晋巨化工有限公司 [2]浙江天硕氟硅新材料科技有限公司 [3]浙江衢化氟化学有限公司,浙江衢州324004

出　　处：《化工生产与技术》2022年第5期4-6,I0002,共4页Chemical Production and Technology

摘　　要：研究了联产1,1,1,2-四氟乙烷(HFC-134a)、二氟甲烷(HFC-32)、1,1,1,2,2-五氟乙烷(HFC-125)和1,1,1,2,3,3,3-七氟丙烷(HFC-227ea)的方法及催化剂。以氯代烯烃、1,1,1,2,3,3-六氟丙烯、二氯甲烷和氟化氢为原料,原料分2段进入反应器,反应器分3段装填催化剂,在氟化催化剂的作用下反应,分离提纯后得到目标产物。结果表明,三氯乙烯(TCE)、四氯乙烯(PCE)及六氟丙烯(HFP)的转化率可达99%以上,二氯甲烷(R30)的转化率达98%以上。反应器同时联产多种氢氟烃产品,改变反应条件可以控制各氢氟烃产品的比例,实现集约化生产,工艺流程简单,能耗低。Methods and catalysts for co-production of 1,1,1,2,2-tetrafluoroethane(HFC-134a), difluoromethane(HFC-32), 1,1,1,2,2-pentafluoroethane(HFC-125) and 1,1,1,2,3,3,3-heptafluoropropane(HFC-227ea) were studied. Chlorinated olefins, 1,1,1,2,3,3-hexafluoropropylene, dichloromethane and hydrogen fluoride were used as raw materials. The raw materials entered the reactor in two sections, and the reactor was filled with catalysts in three sections. The reaction was carried out under the action of fluorination catalyst, and the target product was obtained after separation and purification. The results showed that the conversion of trichloroethylene(TCE), perchloroethylene(PCE) and hexafluoropropylene(HFP) was over 99%, and the conversion of dichloromethane(R30) was over 98%. The reactor simultaneously produces a variety of hydrofluorocarbon products. Changing the reaction conditions can control the proportion of each hydrofluorocarbon product and realize intensive production. The process flow is simple and the energy consumption is low.

关 键 词：1 1 1 2 3 3 3-七氟丙烷 1 1 1 2-四氟乙烷 二氟甲烷 1 1 1 2 2-五氟乙烷 催化剂 联产 方法 

分 类 号：TQ222.24[化学工程—有机化工]