The solvent extraction of Ag(I) from nitrate solutions has been studied using a mixture of LIX84I and PC88A. The mixture showed significant synergism at a LIX84I/PC88A ratio of 0.8:0.2. In order to identify the extraction reaction, the effects of various parameters, such as the equilibrium pH value and extractant concentration, were studied based on the slope analysis method. From stripping studies, 3 mol/L of nitric acid was found to be the best stripping agent. This mixed extractant can be applied for the separation of Ag from a nitrate solution containing Ca, Si, Al, Re, and Ni.
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