Non-Ferrous Metal Sorbents Based on Waste and Side Products of Mineral Benefication Plants

Abstract

The saponite-containing product from the stage of process water clearing at benefication plant of the PAO Severalmaz was thickened using the electrochemical separation for use as sorbent of nickel and copper ions. The product features a high sorption capacity relatively the nickel and copper ions. It has been established that the sorption capacity can be enhanced by roasting the product at 750°С to 194 and 212 mg/g for the nickel and copper ions respectively. An organomineral sorbent for nickel ions based on copper-nickel ore tailings of the JSC „The Kolskaya Mining and Metallurgical Company”, thermally activated at 700ºС, has been synthesized. The surface modification was performed by using the non-covalent immobilization of dimethylglyoxime.