Development of New-Concept Clean Technologies to Extract Metals from Primary and Secondary Sources

摘要

Development of new-concept hydrometallurgical technologies promoted by Tecnicas Reunidas is providing efficient and clean means for metals extraction from diverse primary and secondary sources, such as conventional or low-grade concentrates and ores, lead-acid batteries, domestic batteries, effluents from electronic industry, etc. Relevant characteristics of the recently developed processes regarding extraction of zinc, lead, silver, nickel and copper metals are the following: environmentally friendly, value added products and by-products, flexibility to a great variety of feed materials, adapted to local market requirements, easy to be combined with existing plants, available for small and large capacities and on-site installation close to the metal sources.