碳酸乙烯酯水解合成乙二醇的研究进展

Advances in synthesis of ethylene glycol via ethylene carbonate

介绍了乙二醇现有的生产工艺及其现状,分析了碳酸乙烯酯法制乙二醇新工艺的优势及其工业化应用前景,从均相和非均相两方面对新工艺水解过程中所使用的催化体系分别做出了相应的阐述,并指出了各自的研究方向和发展趋势,最后提出了采用新型非均相催化剂解决现有难题以应用于水解过程的设想。

The traditional direct hydration process to produce ethylene glycol consumes a large amount of water and energy. To overcome these shortcomings, a new technology catalytically synthesizing ethylene glycol from ethylene carbonate has been developed to save production cost, which is high promising for industrial application. The catalyst systems applied in the hydrolysis process of ethylene carbonate are summarized from the aspects of homogeneous and heterogeneous catalysts, respectively. The corresponding research directions and development trends are proposed as well. The new heterogeneous catalysts are proposed to solve the problems existing in the process of hydrolysis in the end.