乳酸(酯)脱水制取丙烯酸催化剂及机理研究

Catalysts and Mechanism of Dehydration of Lactic Acid(Lactic Ester)to Produce Acrylic Acid

以生物质乳酸(酯)为原料合成丙烯酸是当前能源化工领域的研究热点之一。文章综述了近年来乳酸(酯)气相脱水制取丙烯酸的研究,重点讨论了催化剂类型(磷酸盐、硫酸盐、羟基磷灰石和分子筛)对脱水反应的影响;并对脱水反应的机理和动力学行为进行了分析和归纳;最后,对乳酸(酯)催化转化制取丙烯酸的发展前景进行了展望。

The production of acrylic acid from lactic acid(lactic esters)is one of the research hotspots in the field of energy and chemical industry.This paper reviews the research on the production of acrylic acid by dehydration of lactic acid(lactic esters)and mainly focuses on the influence of catalyst type(sulfate,phosphate,hydroxyapatite,zeolites)on the dehydration reaction.The reaction mechanism and kinetic behavior were also analyzed and summarized.Finally,the development for the catalytic conversion of lactic acid(lactic ester)to acrylic acid in the future was predicted.