Research of kinetics of zinc leaching with sulfuric acid from smithsonite
Ramazanova R.A. Mamyachenkov S.V. Seraya N.V. Daumova G.K. Aubakirova R.A. Bagasharova Z.T.
July 2021Faculty of Metallurgy
Metalurgija
2021#60Issue 3-4407 - 410 pp.
The study investigates the kinetics of zinc leaching from smithsonite with sulfuric acid in order to expand the zinc production feedstocks. The recovery rate of zinc from smithsonite into water-soluble zinc sulfate was found at different leaching time and temperature. Sulfuric acid concentration, its consumption and smithsonite particles size selected in this work for leaching of zinc from this mineral using the indicated solution allowed to determine the magnitude of “apparent” activation energy of the smithsonite reaction with the indicated acid, equal to 2,633 kJ / mol. The calculated value of E, shows that the process investigated is accompanied by diffusion phenomena.
Activation energy , Leaching , Smithsonite , Sulfuric acid , Zinc sulfate
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D. Serikbayev East Kazakhstan Technical University, UstKamenogorsk, Kazakhstan
Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg, Russian Federation
S. Amanzholov East Kazakhstan University, UstKamenogorsk, Kazakhstan
Al-Farabi Kazakh National University, Almaty, Kazakhstan
D. Serikbayev East Kazakhstan Technical University
Ural Federal University named after the First President of Russia B. N. Yeltsin
S. Amanzholov East Kazakhstan University
Al-Farabi Kazakh National University
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