期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 246, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.seppur.2020.116896
关键词
Platinum; Palladium; Rhodium; Separation; Ion exchange resins
资金
- Basic Research Project of the Korea Institute of Geoscience and Mineral Resources (KIGAM)
- NRF, Korea under the project Development of valuable metal recycling and reuse technology by using highly metal selective nano-cellulose base material [NRF-2018R1C1B6001081, 19-6817]
Demand for platinum (Pt), palladium (Pd) and rhodium (Rh) as parts of platinum group metals (PGMs) has continued to increase as a consequence of increase in their applications. Various extraction methods have been developed to produce the metals including leaching-based process using halides, sulfate-chloride and cyanide, which generate leach liquors containing metal ions together with impurities. Separation processes are essentially employed to obtain metals of high purity for further applications. Among the widely applied techniques, ion exchange with the use of resins becomes one of the most important approaches. This paper reviews the separation of Pt, Pd and Rh by ion exchange resins from various solutions while considering the presence of other metals such as other PGMs, Au, Ag and base metals. The basic solution chemistry, type, properties and preparation of ion exchange resins including industrial and proposed flow sheets are also presented. In addition, an outlook for the further work in this area is provided.
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