STUDY OF THE MAIN FACTORS AFFECTING COPPER LOSSES WITH SLAGS IN OXYGEN SMELTING PROCESSES
Abstract
This article examines the mechanisms of copper losses with slags during oxygen-fuel smelting, focusing on both dissolved and mechanical forms. The study reveals that the majority of losses result from copper dissolving into the slag due to its high oxidative potential, strongly influenced by elevated magnetite content. Increased magnetite not only enhances copper solubility but also impairs phase separation between slag and matte. Factors such as copper content in matte, slag composition, sulfur levels, and the physicochemical properties of the system significantly affect copper loss. Particular attention is paid to the dispersion and coalescence of matte droplets and the role of magnetite in stabilizing sulfide suspensions. Recommendations are provided for minimizing copper losses through slag composition optimization and technological parameter adjustment.
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List of references
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