Chair of Non-Ferrous Metals and Gold, National University of Science and Technology “MISiS”, Moscow, Russia:

M. B. Kurmanseytov, Master's Degree Student1, e-mail: mura_123@inbox.ru
A. N. Fedorov, Professor

Chair of Metallurgy of Non-Ferrous Metals, Kazakh National Technical University, Almaty, Kazakhstan:
N. K. Dosmukhamedov, Professor

Conversion technology is successfully applied in practice. However, the issues of increasing the copper extraction in crude metal and advancement of quality of obtained products are still urgent, especially during the conversion of complex composition converter mattes, including copper-lead mattes. Conversion may be carried out as a final processing stage of intermediate product — copper-lead converter matte, obtained during the separate processing of lead intermediate products and reverts. On the basis of statistic analysis of industrial data results about the compositions of mattes and their corresponding conversion product compounds, the distribution of copper and accompanying metals-impurities (lead, arsenic and antimony) was investigated during the conversion of copper-lead mattes at Ust-Kamenogorsk metallurgical complex at the LLC “Kazzinc”. There were set the regularities of distribution of copper, lead, arsenic and antimony between conversion products. The distribution coefficients of copper, lead, arsenic and antimony were calculated on the basis of mathematical treatment of industrial data, and their dependence on matte composition was defined. Obtained results allow to make a conclusion about the fact that final extraction of copper in black copper during the conversion of copper-lead mattes is defined by the presence of lead, arsenic and antimony in mattes. Reaching optimalindicators of metal distribution during the conversion needs either the advancement of quality of matte, obtained during the mine reduction smelting of matte, or the forecast of addition technological measures in the conditions of the converting process, providing the increasing of black copper quality.

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