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HEAVY NON-FERROUS METALS
ArticleName Copper distribution in condensation products of lead concentrate melting using Vanyukov’s process
DOI 10.17580/nfm.2015.01.02
ArticleAuthor Kotykhov M. I., Fedorov A. M.
ArticleAuthorData

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

M. I. Kotykhov, Engineer, e-mail: kotykhov.m@gmail.com
A. M. Fedorov, Professor

Abstract

Processing of low-grade lead concentrates with high content of copper, either by the classical agglomeration technology, that is blast smelting, or using advanced autogenous processes, includes the polymetal matte stage, which complicates crude lead smelting technology and weakens economic performance. The authors have carried out laboratory research by the method of twin melters with a view to analyze distribution of copper in condensation products of melting without the matte stage using Vanyukov’s process. The coefficients of copper distribution in crude lead and high-lead slag in equilibrium conditions are determined for various slag compositions and temperatures. The mechanisms of copper behavior in oxidation melting of lead material are revealed. The microstructure analysis of slag specimens with different degree of decrystallinity yields the evaluation of association of dissolved copper and phase structure of slag melt. The experiments have proved applicability of barbotage oxidation to processing low-grade lead sulfide concentration with the content of copper up to 5% without the matte stage. The obtained mechanisms of copper distribution are usable for developing a technology of oxidation melting of copper-bearing low-grade lead concentrates by Vanyukov’s process, and for barbotage processes of other kinds.

keywords Lead, slag, autogenous process, copper, distribution coefficient, Vanyukov’s process, matte
References

1. Romanteev Yu. P., Bystrov V. P. Metallurgiya tyazhelykh tsvetnykh metallov. Svinets. Tsink. Kadmiy (Metallurgy of heavy non-ferrous metals. Lead. Zinc. Cadmium). Moscow : Publishing House of “MISIS”, 2010. 575 p.
2. Fedorov A. N., Khabiev M. P., Khabiev R. P., Lukavyy S. L. Tsvetnye Metally = Non-ferrous metals. 2011. No. 7. pp. 21–24.
3. Lukavyy S. L., Fedorov A. N., Khabiev R. P., Khabiev M. P., Min M. G. Tsvetnye Metally = Non-ferrous metals. 2012. No. 2. pp. 32–35.
4. Kopylov N. I., Smirnov M. P., Toguzov M. Z. Diagrammy sostoyaniya sistem v metallurgii tyazhelykh tsvetnykh metallov (Constitution diagrams of systems in metallurgy of heavy non-ferrous metals). Moscow : Metallurgiya, 1993. 302 p.
5. Atlas shlakov : spravochnik (Atlas of slags : reference book). Translated from German. Under the editorship of I. S. Kulikov. Moscow : Metallurgiya, 1985. 208 p.
6. Komkov A. A., Bystrov V. P., Fedorov A. N. Tsvetnye Metally = Non-ferrous metals. 2006. No. 9. pp. 11–15.
7. Bystrov V. P., Vaskevich A. D., Shubskiy A. G. Primenenie avtogennykh protsessov v proizvodstve svintsa : obzornaya informatsiya (Usage of autogenic processes in the manufacturing of lead : survey information). Moscow : Central Scientific and Research Institute of Economics and Information of Non-ferrous Metallurgy, 1988. Iss. 2. 54 p.
8. Linchevskiy B. V. Tekhnika metallurgicheskogo eksperimenta (Technics of metallurgical experiment). Second edition. Moscow : Metallurgiya, 1979. 256 p.
9. Smiryagin A. P., Smiryagina N. A., Belova A. V. Promyshlennye tsvetnye metally i splavy (Industrial non-ferrous metals and alloys). Third edition. Moscow : Metallurgiya, 1974. 488 p.
10. Novozhilov A. B., Fedorov A. N., Pavlov R. A. Tsvetnye Metally = Non-ferrous metals. 1998. No. 3. pp. 17–21.

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