Leaching is carried out in chloride acid medium in those raw materials where the use of sulfuric acid is not effective.
the solvent extraction stage concentrates and purifies the electrolyte and the re-extraction stage is performed using sulphuric acid, producing a zinc electrolyte suitable for conventional electroplating technology
High-purity metallic zinc plates are produced by using an electric current. The exhausted electrolyte is used again in the stripping stage.
The technology allows in a single SX cycle the production of a zinc electrolyte in sulphate medium from a leaching liquid in chloride medium. At the same time it allows the recovery of other metals of interest such as lead in different stages of the technology.
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