Stimulation of Zinc Recovery from Manmade Mineral Resources by Electric Treatment and Ozonizing
A. V. Rasskazova, A. G. Sekisov
Institute of Mining, Far Eastern Branch, Russian Academy of Sciences, Khabarovsk, Russia
Keywords: Lead-and-zinc flotation tailings, sphalerite, sulfuric-acid leaching, ozone, sodium chloride, electric processing
Abstract
The authors analyze extra recoverability of zinc from complex ore flotation tailings. The material constitution of the manmade mineral resource is studied and the expediency of its hydrometallurgical processing is substantiated. The influence of the reagent regime on the efficiency of sulfuric-acid leaching of zinc is discussed. The sulfuric acid concentration is optimized, and the efficiency of electric processing of the leaching solution is determined. The efficiency of different oxidizers during leaching is evaluated. Ozonizing of leaching solutions and introduction of sodium chloride in them have a beneficial effect on zinc recovery.
|
