FIELD: metallurgy.
SUBSTANCE: method includes catalyst dilution in chlorhydric acid with palladium chloride and other metals solutions obtainment. Then three-staged treatment of solutions by sodium hydroxide with fibrillated cellulose fibres available in solution as sorbent is performed, composite materials being obtained at each stage consisting of cellulose fibres with metal insoluble compounds particles immobilised by them, at each stage composite materials are extracted by pressure flotation method.
EFFECT: simplifying process, increasing degree of palladium regeneration, utilisation of copper and aluminium and process performance in continuous mode.
5 cl, 1 dwg, 1 ex
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