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此文用离子交换树脂作催化剂,对共沸脱水后的乳酸先进行一般酯化,再进行共沸酯化可以获得纯度较高、收率稳定在80％以上的乳酸乙酯产品。
In this paper, ion exchange resin as a catalyst for the azeotropic dehydration of lactic acid after general esterification, and then azeotropic esterification can be obtained with higher purity, yield of more than 80% stable ethyl lactate products.