苯乙烯分子氧环氧化多相催化剂研究进展

摘要

针对近年来国内外苯乙烯分子氧环氧化多相催化剂的研究进展进行了综述,主要介绍了钴系、金系、铁系及其他催化体系等催化剂.其中,钴系催化剂活性高,工艺条件温和,绿色环保,但价格昂贵；金系催化剂在低温条件下对苯乙烯分子氧环氧化表现出良好的活性；铁系催化剂活性低,但经济性好.指出负载型钴系、金系催化剂在苯乙烯分子氧环氧化研究中有潜在的应用前景.%The research progress of heterogeneous catalyst for styrene epoxidation with molecular oxygen was reviewed in recent years in China and abroad. Four types of catalysts, namely cobalt catalyst, gold catalyst, iron catalyst and other catalysts, were emphatically introduced. Among these four types of catalysts, cobalt catalyst had the features of high activity, moderate process conditions, green environment protection and high price; gold catalyst exhibited favorable activity in styrene epoxidation with molecular oxygen at low temperature; and iron catalyst had low activity and high economics. It was pointed out that supported cobalt catalyst and gold catalyst had potential prospects in the research of styrene epoxidation with molecular oxygen.