Technology of Hydrometallurgical Processing of the Nickel–Magnesium Ores from the Aganozero Deposit

Abstract

The extraction of nickel and magnesium by hydrometallurgical methods is studied to develop a combined technology of sulfuric acid processing of the nickel–magnesium ores from the Aganozero deposit. The influence of the leaching parameters, namely, the consumption of sulfuric acid, the pulp density (ratio L : S), the temperature, the process time, and the milling fineness, on the extraction of the metals is studied. The optimum parameters of the kinetics, the statics, and the sorption–desorption extraction of nickel from the pulps formed after leaching the ores are determined. The use of a VPG ampholyte makes it possible to extract nickel selectively and to separate magnesium with the formation of end products of the required quality in the form of the sulfates of these metals.