PLATINUM GROUP METAL COLLOIDAL PARTICLES RECOVERY MATERIAL, FILTER COMPRISING THE RECOVERY MATERIAL, AND METHOD FOR RECOVERY OF PLATINUM GROUP METAL COLLOIDAL PARTICLES USING THE RECOVERY MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a platinum group metal colloidal particles recovery material having an excellent recovery effect of platinum group metal colloidal particles in a solution containing the platinum group metal colloidal particles.SOLUTION: There is provided a platinum group metal colloidal particles recovery material for a solution comprising the platinum group metal colloidal particles, wherein the recovery material is an activated carbon having a pore volume of the pore diameter range of 35-110Å, in the pore distribution measured from the nitrogen desorption isotherm at the temperature of 77.4K according to the BJH method, of 0.07 ml/g or more.SELECTED DRAWING: Figure 2