摘要
乙二醇属于最简单的二元醇,其化学性质活泼,可发生酯化、醚化、氧化、缩合、脱水等反应。针对乙二醇在近年来行情低迷,产能过剩的状况,重点论述了以乙二醇为主要原料可进行的氧化反应转化,包括化学氧化法、电化学氧化法和生物催化氧化法。详细分析了酶催化和静息细胞催化等生物法转化乙二醇合成乙醇醛、乙醇酸、乙二醛等的相关研究报道,指出了生物催化氧化法相较于传统化学氧化无可比拟的优点,并对以乙二醇为原料合成精细化学品进行了展望。
Ethylene glycol is the simplest diol.Its properties are active and can be easily esterified,etherified,oxidized,condensed,dehydrated and so on.In recent years,the production of ethylene glycol has become overcapacity and the price pressure is more serious.This paper was focused on the oxidative transformation of ethylene glycol as the main raw material,including chemical oxidation,electrochemical oxidation and biocatalytic oxidation.The research reported about the synthesis of glycolaldehyde,glycolic acid and glyoxal from ethylene glycol using biological methods such as enzyme catalysis and resting cell catalysis were also analyzed and summarized,and pointed out the advantages of biocatalytic oxidation compared to traditional chemical oxidation.Finally,prospects for the synthesis of fine chemicals from ethylene glycol are presented as well.
引文
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