摘要
研究了应用Ti(SO4 ) 2 催化合成硬脂酸甲酯的绿色新工艺 ,结果表明 ,Ti(SO4 ) 2 在该反应中具有很好的催化性能 ,并得到了合成硬脂酸甲酯的新工艺条件是 :催化剂用量 (硬脂酸质量的百分数 )为 5 % ;醇酸摩尔比为 5∶1;反应温度 6 5～ 70℃ ;反应时间 2 5～ 3h。优化条件下 ,硬脂酸的酯化率达 94 7% ,硬脂酸甲酯收率达88 4%。
New green technology of catalytic synthesis of methyl stearate by Ti(SO 4) 2 was studied.The results showed that Ti(so 4) 2 had good catalytic performance in the esterification.The optimun condition of new technology for synthesis of methyl stearate was obtained as follows:the catalyst5%,methanol 5mol,stearic acid 1mol,reaction temperature65～70℃,time2.5～3h.In optimun condition,the rate of esterification was 94.7%,the yield was 88.4%.
