Integrated Solutions for Processing Complex Concentrates: Codelco’s Approach to Manage Arsenic-Containing Materials with Roasting, Smelting, and Dust Processing

This chapter delves into Codelco's comprehensive strategy for handling arsenic-containing copper concentrates, focusing on roasting, smelting, and dust processing. It begins by outlining the global demand for copper and the associated challenges, such as resource complexity and regulatory pressures. The text then introduces Codelco's five focus areas for sustainable copper production, with a particular emphasis on managing arsenic. The chapter provides an in-depth look at the processing of complex arsenic-containing concentrates, highlighting various technologies and their development stages. It also describes Codelco's integrated processing cluster in the northern area of Chile, including the Ministro Hales Division Roasting Plant, the Chuquicamata Smelter, and the Ecometales Plant. The chapter concludes by discussing the advantages of Codelco's approach, such as the disposal of arsenic as a stable compound, the production of sustainable copper, and the ability to process external high-arsenic-containing concentrates. Additionally, it explores future opportunities and strategies for optimizing the operation of these assets.