Sorption Recovery of Palladium (II) and Platinum (IV) from Hydrochloric Acid Solutions

Full text (.pdf)
Issue
Химия. Chemistry. 2018 11 (1)
Authors
Kononova, Olga N.; Duba, Evgeniya V.; Schneider, Nikita I.; Pozdnyakov, Iliya A.
Contact information
Kononova, Olga N.: Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; ; Duba, Evgeniya V.: Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; Schneider, Nikita I.: Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; Pozdnyakov, Iliya A.: Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia
Keywords
ion exchange; palladium; platinum; hydrochloric acid solutions
Abstract

The sorption preconcentration of Pd (II) and Pt (IV) from hydrochloric acid solutions on Purolite ion exchangers with different functional groups was investigated. The initial concentrations in contacting solutions were 0.025–0.25 mmol/L for palladium and 0.25 mmol/L for platinum at the HCl concentrations 0.01–4.0 mol/L. It was shown that the investigated resins have high sorption ability (more than 85–95 %) to chloride complexes of noble metals. We found out that the simultaneous elution of these complexes by hydrochloric acid thiourea solution (1 mol/L in 0.5 M HCl) is possible (to more than 80 %) from anion exchangers Purolite A 111 and Purogold™ A 193

Pages
6-17
Paper at repository of SibFU
http://elib.sfu-kras.ru/handle/2311/70986