Reaproveitamento de rejeito de cobre presentes em barragens de contenção de rejeitos

Abstract

The increase in world demand for copper ore, the decrease in the quality of the extracted ore, he need to comply with Resolution ANM 04/19 and a greater consideration of the impacts associated to the tailing final disposal has motivated studies that aim for the reuse of materials contained in mining tailing dams. In this scenario, the objective of this study is to evaluate the perspectives for the copper mining tailings reuse as alternative construction materials, base for pavement regularization, pig iron production and vanadium scoria, fill in underground mine enhancements and for agricultural purpose. Therefore, a bibliographical review of the copper ore beneficiation process, the tailing composition stored in dams and its reuse; and the description of case studies present in the literature; Finally, a technical analysis of the reuse process of copper waste was performed and a new process for its reuse was proposed. The results obtained demonstrate the technical viability of the copper tailing use by the mining companies.