萃取树脂吸萃金研究进展

摘要

Extraction resins are participate adsorbers which are based on the incorporation of extractants into porous carriers such as polymer supports by physical adsorption. They possess a combination of the advantageous features of both liquid - liquid extraction and ion exchange. This paper reviews the current situation and prospect of adsorbing and extracting gold with extraction resins process according to the types of extraction resins. The mechanism of sorption is basically similar to the case of solvent extraction. The effective separation of gold can be obtained under properly - controlled conditions. This technology will open up a new approach for the separation of gold.%萃取树脂是通过物理方式将萃取剂固定于某种适宜的多孔载体(如聚合物)上的吸附剂.它具有液液萃取和离子交换的优点.文章按萃取树脂的类型对其吸萃金的研究现状进行了综述.萃取树脂吸萃金离子的机理与溶剂萃取法相似,控制合适的条件可以实现金的有效分离.预计萃取树脂技术将为金分离开拓一条新途径.