【摘要】 合成了甲烷磺酸铜,用热重和红外对其进行表征。并以甲烷磺酸铜为催化剂,研究其催化乙酸与正丁醇酯化反应中各种因素对酯化率的影响。反应条件为:醇酸物质的量比1.1∶1,催化剂用量0.5%以酸的物质质量计,反应时间2.5h,反应温度80～85℃,环己烷2.5ml为带水剂,酯化率可达97.7%。其催化活性远远高于CuSO4·5H2O、CuCl2·2H2O、CaNO32·3H2O、CuCH3COO2·H2O及其它Lewis酸催化剂。用甲烷磺酸铜作催化剂合成其它乙酸酯和氯乙酸异丙酯,酯化率高,反应后经过简单的相分离就可重复使用,并且重复使用稳定性好。更多还原

【Abstract】 Copper methanesulfonate is synthesized and characterized by TGA and FTIR. Copper methanesulfonate is used as the catalyst in the esterification of acetic acid with n-butanol. Various factors that affected the esterification have been investigated. Under the condition of 1.1/1 molar ratio of n-butanol to acetic acid, 0.5% catalyst (molar percent of acetic acid),2.5 h reaction time, temperature 80～85 ℃,2.5 ml cyclohexane as water-carrying agent,the esterification yield of butyl acetate reaches 97.7%. The catalytic activity of copper methanesulfonate is higher than that of copper sulfate, copper chloride, cupric nitrate,copper acetate and other Lewis acids. copper methanesulfonate is used as the catalyst in synthesizing other acetic ester and isopropyl chloroacetate,the esterification yield is high, after reaction the catalyst can be reused by simple phase-separation, and the yield is stable.更多还原