以乳酸和乙醇为原料,钨钼为催化剂催化合成乳酸乙酯。通过优化验证实验,得出最宜合成条件为:n(乳酸):n(乙醇)=1∶3,钨钼催化剂为1.5 g,带水剂为20 ml,反应时间为30 min,乳酸乙酯产率可达93.2%。该法能避免现行硫酸催化剂腐蚀设备和污染环境的弊端,并能提高反应速率和乳酸乙酯的产率,且催化剂可重复使用。 Lactic acid and ethanol as raw materials, tungsten molybdenum catalyst for the synthesis of ethyl lactate. The optimal synthesis conditions were as follows: n (lactic acid): n (ethanol) = 1: 3, tungsten-molybdenum catalyst 1.5 g, water-carrying agent 20 ml and reaction time 30 min. Yield up to 93.2%. The method can avoid the drawbacks of the existing sulfuric acid catalyst corrosion equipment and pollute the environment, and can improve the reaction rate and the yield of ethyl lactate, and the catalyst can be reused.