National University of Science and Technology "MISIS"

V. I. Zhuravlev, Senior Research Officer, Department of Beneficiation of Non-ferrous and Rare Metals Ores
G. G. Bozhko, Assistant Professor, Department of Metallurgy of Non-ferrous, Rare and Precious Metals; e-mail: bojko06@mail.ru

Sorption processes are widely used in chemistry, hydrometallurgy and other industrial areas. Efficiency of sorption process depends largely on kinetic characteristics of used sorbent. Fiber sorbents have been widely used in industry. Specific surface of fibers is larger by two orders than surface of granulated polymer sorbents. And sorption rate by fibers is quicker in several times, than by some granulated polymeric sorbents. During gold extraction by granulated ionites equilibrium has been fixed for 10 hours and more, but fibers for 15–20 minutes. Fiber sorbents is more effectively used for finally water and gas cleaning from alloys, for valuable and toxic materials extraction. The target of the work is researching of general relations of silver sorption from cyanide solutions by fiber sorbents and fiber material choosing for silver extraction from industrial cyanide wastes. The conclusion was done, that pyrazole-bearing fiber sorbents is prospective for silver extraction from cyanide solutions with high content of iron, copper, zinc and nickel. The scheme of saturated fibers regeneration has been developed in laboratory conditions.

1. Artemenko S. E., Kardash M. M., Fedorchenko N. B., Samarskiy A. A. Nauka Kubani — Science of Kuban. 2000. No. 5. pp. 33–34.
2. Pribytkov A. A. Mater. IX Vseros. cimpoziuma «Sovremennye problemy organizatsii poristykh struktur adsorbtsionnogo razdeleniya veshchestv» (Materials of the IX All-Russian Symposium "Modern problems of the porous structures organization of the adsorption substances separation). Moscow—Klyazma, 2004. pp. 56–59.
3. Druzhinina G. Ya., Chernyak A. S., Khomutovnikov V. A. and etc. Tsvetnye metally — Non-ferrous Metals. 1976. No. 6. p. 83.
4. Certificate of authority 603302 SSSR. Sopolimer, soderzhashchiy metilpirazolnye gruppy dlya sorbtsionnogo kontsentrirovaniya i izvlecheniya blagorodnykh metallov (Copolymer containing methylpyrazole groups for sorption concentration and extraction of precious metals). I. I. Antokolskaya, L. I. Bolshakova, G. V. Myasoedova and etc. ; 1979.
5. Certificate of authority 1161514 SSSR. Sopolimer stirola i divinilbenzola, soderzhashchiy metilpirazolnye gruppy, dlya sorbtsionnogo kontsentrirovaniya i izvlecheniya blagorodnykh metallov (Polystyrene-co-divinyl benzene containing methylpyrazole groups for sorption concentration and extraction of precious metals). A. V. Smirnov, M. L. Petrova, F. A. Lyubinskis and etc. ; 1985.
6. Astashkina O. V., Lysenko A. A., Emets L. V. and etc. Zhurnal prikladnoy khimii — Journal of Applied Chemistry. 1987. Vol. 60, No. 12. p. 2682.