氯酸钠法制备二氧化氯还原剂研究进展

Research progress in reducing agent for preparation of chlorine dioxide by sodium chlorate process

对比介绍了氯酸钠法生产二氧化氯常用还原剂的特点;综述了氯酸钠法制备二氧化氯新还原剂(硫化合物、多元醇、有机酸、碳水化合物、尿素和乙二醛)的研究进展;讨论了氯酸钠法制备二氧化氯有机还原剂甲醇和乙二醛的作用机理;指出采用复合还原剂降低生产成本和采用有机还原剂同时制备两种有用产品是氯酸钠法制备二氧化氯还原剂发展趋势。

Characteristics of reducing agents commonly used in industrially producing chlorine dioxide were introduced with comparison.Research progress in new reducing agents,such as sulfur compound,polyalcohol,organic acid,carbohydrate, urea, and glyoxal for the preparation of chlorine dioxide by sodium chlorate process was summarized.Reaction mechanism of organic reducing agents, methanol and glyoxal, in preparation of chlorine dioxide was discussed.It was pointed that decreasing production cost by using combined reducing agent as well as preparing two useful products simultaneously by using organic reducing agent is the tendency of reducing agent development.