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201×7强碱性阴离子交换树脂又名717树脂,是一种苯乙烯系凝胶Ⅰ型强碱树脂它的基本结构为 化学性质稳定,物理机械性能良好,在国民经济各部门几乎都有广泛应用.这种树脂的主要缺点之一是甚易被污染.近年来,国内外都有很多关于这种树脂的复苏法的报导[1、2、3、4].自从出现了大孔强碱树脂以后,解决了部分污染问题,但是大孔树脂并不能完全代替凝胶树脂,除价贵外,也由于工作容量等不及凝胶树脂.所以对201×7树脂的污染和复苏的研究,仍然是当前离子交换树脂应用研究工作中的一个重要方面.
201 × 7 Strongly basic anion exchange resin, also known as 717 resin, is a styrenic gel type Ⅰ alkali resin Its basic structure of chemical stability, good physical and mechanical properties, almost all sectors of the national economy are extensive Application One of the major drawbacks of this resin is its susceptibility to contamination, and in recent years there have been many reports both at home and abroad about the resuscitation of this resin [1,2,3,4]. Since macroporous alkali After the resin, to solve the problem of some pollution, but the macroporous resin does not completely replace the gel resin, in addition to expensive, but also due to the work capacity of less than the gel resin.Therefore, 201 × 7 resin pollution and recovery research, still It is an important aspect in the application research of ion exchange resin.