The present invention relates to a chemical and physical hydrometallurgical method with solid-liquid-solid interaction for the solubilization of copper sulphides, by Selective Transformation and Precipitation of soluble, chlorinated, copper species, where said method does not depend on the redox potential and can be carried out in a wide range of pH under conditions of salts supersaturation, which is a condition that is generated by periods of non-irrigation, from ores or copper concentrates, mainly primary sulphides, such as chalcopyrite comprising said copper. This method is composed of 3 steps, called Moistening and Solvation Step, Selective Transformation and Precipitation Step and Acid-Chlorinated Washing step, wherein said method does neither require the addition of oxidizing or reducing agents, nor oxygen. Furthermore, the steps of the method can be applied only with the presence of water, where acid addition is not required. On the other hand, the repetitions of the steps of the method potentiate the physical effects on the ore or concentrate through the phenomena of haloclasty and crystallization of salts. The invention can also be applied to sulphide base metals such as nickel, zinc, cobalt, lead, molybdenum, among others, independently of the usual impurities of the sulphide ores, as occurs with the presence of arsenic.

The present invention describes a Solid-Liquid-Solid hydrometallurgical process, optimized and independent of redox potential, to increase the solubilization of metals from ores and/or concentrates with a granulometry of less than 40 mm, by means of an initial stage called Activation; a second stage called Dry autocatalytic transformation; a third stage called Washing and re-wetting; and where the stages of dry autocatalytic transformation and washing and re-wetting, can be repeated in an alternating and repeated way.

A cyclone high-speed electrolyzer using the high-speed turbulence, a method for recovering a valuable metal using the same, and a valuable metals recovered therefrom are provided, by applying a cyclone high-speed electrolytic recovery method to suppress the increase in concentration polarization caused by the rise in activation polarization and the growth of the diffusion layer, which are issues of conventional electrolytic recovery methods. In the cyclone high-speed electrolytic recovery method, a helical downward vortex is generated along the wall of the cyclone electrolyzer to accelerate the electrolyzer at high speed, forming a high-speed turbulent flow. This high-speed turbulence reduces the diffusion layer, significantly improving electrolytic efficiency and remarkably increasing the recovery rate of valuable metals.

Methods, compositions and systems are provided that improve recovery of copper from previously leached copper ores. A reset solution comprising a chelating agent and a reducing agent is provided to a heap of previously leached and passivated ore to improve copper recovery kinetics in subsequent leaching stages.

The invention relates to hydrometallurgical technology, in particular, to methods for extracting metals from waste copper tailings and concentrates. The objective of the invention is to increase the degree of desiliconization of concentrates while simultaneously lowering the heat treatment temperature and comprehensive extraction of valuable components. The achieved technical result of the proposed invention is the sequence of technological operations, the sintering condition with sodium hydroxide and the sequence of extraction of silica, rhenium, copper and silver from solution. The technical result is achieved by desiliconization at normal pressure in an air atmosphere by sintering with the most active reagent-sodium hydroxide and further selective extraction of silica and rhenium during aqueous leaching, copper and silver during sulfuric acid leaching with the extraction of copper from the solution by extraction, and silver by sorption.

Methods, compositions and systems are provided that improve recovery of copper from previously leached copper ores. A reset solution comprising a chelating agent and a reducing agent is provided to a heap of previously leached and passivated ore to improve copper recovery kinetics in subsequent leaching stages.