The article investigates the sorption method of concentrating rare metals on various sorbents (brands “Purolight”: A-100, A-170, A-172 and BO-020) determines optimal conditions for their extraction. It is shown that extraction molybdenum sorbent “Purolight A-100” was 98%. proposed mechanism consists in formation complexes with functional phosphor basics sulfate groups sorbents. Sorption rhenium...