Sorption of chloride complexes of platinum, palladium and rhodium by modified activated anthracite

The formation of porous structure of anthracite and its specific surface increase are shown to be a result of chemical modification of carbons with perchloric acid followed by activation with carbon dioxide. This modification of anthracite leads to increasing adsorption capacity of carbons to platinum group metals, especially to palladium and platinum, their adsorption capacities are equal 30 and 25 mg/g. These values are significantly greater than analogous values obtained previously for different samples of activated anthracites without chemical modification.