SnCl_2· 2H_2O催化合成乙酸丁酯

Syntnesis of bytyl acetata catalyzed by SnCl_2· 2H_2O

SnCl2· 2H2O是很好的酯化催化剂。实验表明，当酸醇比为 1∶ 1.3， SnCl2· 2H2O的质量分数占总投料量的 15％时效果最好，可在 90min内完成催化反应，酯化率可达 98％以上。该催化剂价廉易得，反应时间短，其酯化率和产品纯度都很高。

SnCl2· 2H2O is a good esterification catalyst,and it was first used for catalytieal synthesis of butyl acetate.The result shows that esterification ratio of 98.31％ was achieved in conditions:n(acetic acid)/n(n－ butared)=1/1.3,SnCl2· 2H2O operation,no pullution,high rate of eollection and purity.