Abstract
ABSTRACT A new solvent impregnated sorbent containing trioctylphosphine oxide was prepared using carriers from mesoporous silica, obtained by hydrometallurgical processing of Kola Mining-Metallurgical Company (Kola MMC, Russia) dump slag waste. The characterization of sorbent was performed using the SEM, FTIR and TGA techniques. Under static conditions, an sorption of rhenium onto impregnated sorbent in sulfuric acid solution was studied in a batch system with respect to contact time, sulfuric acid concentration, solid to liquid ratio and initial rhenium concentration. The recovery of rhenium from a sulfuric acid wash solution of the Kola MMC was demonstrated.
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