引 言 湿法冶金所用离子交换树脂,除少数情况外(如电镀废液等),主要用于铀矿加工,在这方面着重发展了强碱性阴离子交换树脂,由于连续离子交换方法的出现,要求研制大比重树脂,目前,该类型树脂至少有一种已作为商品生产。 在非贵金属提取方面,用树脂从低品位矿石浸出液中选择吸附铜是一个显著的事例。目前,虽然溶剂萃取法已获得了成功的应用,但对低品位矿石来说,离子交换法就更加引人注 Introduction The ion exchange resins used in hydrometallurgy are mainly used for uranium processing, except for a few cases (such as electroplating waste). In this regard, the strong base anion exchange resin has been developed. Due to the continuous ion exchange method, Development of large proportion of resin, at present, at least one type of resin has been produced as a commodity. In non-precious metal extraction, the use of resin from the low-grade ore leachate adsorption of copper is a notable example. At present, although the solvent extraction method has been successfully applied, but for low-grade ore, the ion exchange method is more attractive