Transactions of the Society for Mining, Metallurgy, and Exploration, Inc.
Transactions home

  SME FaceBook SME Twitter SME LinkedIn RSS Feed

Behavior of anions in association with metal ions under hydrometallurgical environments: Part I — OH- effect on various cations

Minerals & Metallurgical Processing , 2014, Vol. 31, No. 1, pp. 34-39

Kim, R.; Cho, H.C.; Han, K.N.


A comprehensive analysis of the effect of OH- on various cations in hydrometallurgical systems has been investigated. Cations chosen for this analysis included groups 1A and 2A, rare-earth elements and other common transition metal ions such as Cu2+, Fe2+, Fe3+, Mn2+, Ni2+, Co2+, Ag+, Cd2+, U4+, UO22+, Hg2+, Al3+ and Zn2+. The Newton-Raphson technique was used to calculate and plot various metal species over a wide range of pH.
This study has clearly shown that by adjusting the concentration of OH-, the separation of Fe from Mn, U from V, Ce and Eu from other rare-earth elements, and In from Sn is possible. The effects of hydrated metal ions on the separation and removal of various metals from each other under various conditions is discussed.