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    Studies of the rate of gold sorption by the AM-2B anionite from cyanide-alkaline solutions

    Kaumetova, DS, Koizhanova, AK, Absalyamov, Kh K, Magomedov, DR and Banks, CE ORCID logoORCID: https://orcid.org/0000-0002-0756-9764 (2022) Studies of the rate of gold sorption by the AM-2B anionite from cyanide-alkaline solutions. Kompleksnoe Ispolzovanie Mineralnogo Syra (Complex Use of Mineral Resources), 320 (1). pp. 88-94. ISSN 2224-5243

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    The paper presents the results of studies on the sorption leaching of gold-containing ore of the Vasilkovskoye deposit. Kinetic dependences of the sorption of gold and associated metals from cyanide-alkali solutions under different physical and chemical factors were obtained. It was found that gold on the AM-2B resin sorbed at a higher rate than, for example, copper and zinc. The solutions were analyzed using modern devices of a new generation: FT-IR spectrometer "Avatar 370". Laboratory studies were performed to determine the gold sorption rate by the AM-2B anionite from cyanide-alkaline solutions. It was found in the process of sorption of gold from multicomponent cyanide-alkali solutions on AM-2B anionite of mixed basicity, with the macroporous structure containing benzyl dimethylamine and dibenzyl dimethyl ammonium functional groups, that an important factor of qualitative and quantitative separation of gold and impurity metals is the concentration of cyanide and hydroxyl ions in solution. The temperature effect on the sorption rate of gold from cyanide-alkali solutions was studied with the temperature dependences F of t, Bt, of t, ln (l - F) of t, and D of t that show that the sorption process of dicyanoaurate ions is controlled by mixed diffusion.

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