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Carbon Sorbent Based on Special Fine Coke for the Extraction of Gold


S.V. Yefremovaa,*, A.A. Kablanbekova, K.K. Anarbekova, L.V. BunchukaYu.I. Sukharnikova,

N.I. BogdanovichbA.Zh. Terlikbaevaa, and A. A. Zharmenova


a National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan, Almaty, 050036 Kazakhstan

b Northern (Arctic) Federal University, Arkhangelsk, 163002 Russia

*e-mail: Бұл e-mail мекен-жайы спам-боттардан тазартылған, оны қарау үшін Сізде Javascript қосылған болу керек



The production of carbon sorbents based on special fine coke using a combination of steam and gas activation (by gas after the carbonization of Shubarkol coal with carbon dioxide and superheated water vapor) and chemical activation (by sodium hydroxide) was studied. Their textural and sorption properties were characterized. The necessity of separating the carbon and mineral parts of the special fine coke by elutriation in water was shown. The high adsorption capacity of the samples for gold ions was established (the recovery was 99.4–99.9%). The method for the production of a sorbent based on special fine coke in order to extract gold from cyanide solutions and the optimal conditions for its adsorption were recommended.


Keywords: special fine coke, carbon sorbent, adsorption, gold


DOI: 10.3103/S0361521919040062



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