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Journal of Mining Sciences

2017 year, number 5

Effect of Integrated Energy Impacts on Intensified Leaching of Zirconium and Rare Earth Elements from Eudialyte Concentrate

V. A. CHANTURIA, V. G. MINENKO, A. L. SAMUSEV, E. L. CHANTURIA, E. V. KOPORULINA
Academician Melnikov Institute of Integrated Mineral Resources, Kryukovskii tupik 4, Moscow, 111020 Russia
Keywords: эвдиалит, кислотное выщелачивание, цирконий, редкоземельные элементы, энергетические воздействия, eudialyte, acid leaching, zirconium, rare earth elements, energy impacts

Abstract

The article gives testing data on the effect exerted by energy impacts (ultrasonic, electrochemical and thermal) on the recovery of zirconium and rare earth elements from eudialyte concentrate to pregnant solution by acid leaching. An original installation is developed for the implementation of leaching. Based on the research findings on the kinetics of acid leaching of eudialyte concentrate and on the change in the concentrate micro-structure and phase composition, the mechanism of the influence of integrated energy impacts on the efficiency of recovery of zirconium and rare earths in pregnant solution is substantiated.