固定床中液-固相连续催化反应合成2-苯硫基乙醇  

SYNTHESIS OF 2-PHENYLTHIOETHANOL BY LIQUID-SOLID PHASE CONTINUOUS CATALYTIC REACTION IN A FIXED BED

作　　者：吴雨辰 李飞[1] 王锐[1] 姜恒 Wu Yuchen;Li Fei;Wang Rui;Jiang Heng(School of Chemical and Material Science,Liaoning Shihua University,Liaoning Fushun 113001,China)

机构地区：[1]辽宁石油化工大学化学与材料科学学院

出　　处：《精细石油化工》2019年第5期57-61,共5页Speciality Petrochemicals

摘　　要：采用无机多孔材料负载碱金属盐作为催化剂,在固定床反应器中,以苯硫酚(PhSH)和碳酸乙烯酯(EC)为原料合成了2-苯硫基乙醇,优化工艺条件为:常压,120℃,n(EC)/n(PhSH)=1.05/1,体积空速0.75~1.50 h^-1。在此条件下,苯硫酚转化率99.9%,2-苯硫基乙醇选择性99.9%。催化剂连续运转168 h,PhSH转化率和2-苯硫基乙醇的选择性均大于99%。Catalytic synthesis of 2-phenylthioethanol by using thiophenol(PhSH) and ethylene carbonate(EC) is a new way of green synthesis. Using an inorganic porous material supported alkali metal salt as a catalyst, the volumetric space velocity of PhSH and EC mixed solution(EC/PhSH=1.05/1, molar ratio) was 0.75-1.50 h^-1 at normal pressure, 120℃ and solvent-free conditions in a fixed bed reactor, the conversion rate of thiophenol is 99.9%, 2-phenylthioethanol selectivity is 99.9%. When the catalyst was continuously operated for 168 h, the conversion of PhSH and the selectivity of 2-phenylthioethanol were both above 99%.

关 键 词：固定床 液固相催化反应 苯硫酚 2-苯硫基乙醇 

分 类 号：TQ227.1[化学工程—有机化工]