Sorptive recovery of rhodium (III) from multicomponent chloride solutions in presence of tin (II) chloride
https://doi.org/10.17073/0021-3438-2016-5-35-41
Abstract
The paper studies the effect of tin (II) chloride additive agents on the sorption of rhodium (III) on ion-exchange resin Purolite S920 with isothiouronium functional groups, weak base anion-exchange resin Purolite S985, and a strong-base anion-exchange resin Purolite A500. It is found that introduction of SnCl2 leads to a substantial improving of selectivity of all tested ion-exchange resins to Rh(III), and increases sorption rate on ion-exchange resins S985 and S920. The paper determines the optimum dosage of SnCl2 (0,01 mol/l), at which partition coefficients of Rh(III) during adsorption on all tested ion-exchange resins reach maximum values. It is shown that quantitative recovery of Rh(III) is achieved in practice during flowing of the multicomponent chloride solution composed of, g/l: 0,2 Rh(III); 72,9 HCl; 53,5 NH4Cl; 2,7 Al(III); 1,23 Fe(III); 5,9 Sn(IV) with addition of SnCl2, through the ion-exchange resin Purolite S920 with isothiouronium functional groups. Desorption of Rh(III) from the saturated ion-exchange resin Purolite S920 with the use of an acidified thiourea solution is not full, no more than 60 %.
About the Authors
A. А. Susoyeva
St. Petersburg State Technological Institute (Technical University) (190013, St. Petersburg, Moscow av., 26).
Russian Federation
student, Department of technology of rare elements and nanomaterials on their base, StPSTI (TU).
Russian Federation
student, Department of technology of rare elements and nanomaterials on their base, StPSTI (TU).
A. А. Blokhin
St. Petersburg State Technological Institute (Technical University) (190013, St. Petersburg, Moscow av., 26).
Russian Federation
Dr. Sci. (Tech.)., prof., Department of technology of rare elements and nanomaterials on their base, StPSTI (TU).
Russian Federation
Dr. Sci. (Tech.)., prof., Department of technology of rare elements and nanomaterials on their base, StPSTI (TU).
Yu. V. Murashkin
St. Petersburg State Technological Institute (Technical University) (190013, St. Petersburg, Moscow av., 26).
Russian Federation
Cand. Sci. (Chem.), associate prof., Department of technology of rare elements and nanomaterials on their base, StPSTI (TU).
Russian Federation
Cand. Sci. (Chem.), associate prof., Department of technology of rare elements and nanomaterials on their base, StPSTI (TU).
M. A. Mikhaylenko
Representative office of «Purolite Ltd.» in Russia (113096, Moscow, Lyusinovskaya str., 36).
Russian Federation
Cand. Sci. (Chem.), hydrometallurgy manager, «Purolite Ltd.»
Russian Federation
Cand. Sci. (Chem.), hydrometallurgy manager, «Purolite Ltd.»
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Review
For citations:
Susoyeva A.А., Blokhin A.А., Murashkin Yu.V., Mikhaylenko M.A. Sorptive recovery of rhodium (III) from multicomponent chloride solutions in presence of tin (II) chloride. Izvestiya. Non-Ferrous Metallurgy. 2016;(5):35-41. (In Russ.) https://doi.org/10.17073/0021-3438-2016-5-35-41
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