6.Separation and Preconcentration of Trace Elements with Piperidine Resin Ⅱ . Separation and Preconcentration of Gold, Silver, Thallium, Gallium and Indiumin Rocks and Minerals
10.The extraction separation of germanium from indium raffinate in zinc production was described. Using hydroxamic acid HGS98 as extraction reagent, P204 as synergism, kerosene as diluent and NH 4F as stripping, the extraction mechanism and conditions were investigated in detail.