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Metallurgist
Published in: Metallurgist 3-4/2017

11-08-2017

Effect of Tungsten on Precious Metal Extraction During Processing of Radio-Electronic Scrap

Authors: T. A. Aleksandrova, N. M. Telyakov, A. N. Telyakov, D. V. Gorlenkov

Published in: Metallurgist | Issue 3-4/2017

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Abstract

An increase in demand for metal creates a requirement for finding new ways of supply. Toughening of ecological requirements for ore recovery necessitates ways for intensifying treatment processes with the aim of more complete extraction of economic components. In the forefront is secondary metallurgy technology making it possible to extract nonferrous and precious metals from waste. Ecological standards become an important condition for processing radio-electronic engineering scrap. Enrichment product compositions obtained from radio-electronic industry scrap are provided and results are described for melting radio-electronic scrap and dissolution of anodes prepared from this waste. The compositions of concentrates entering processing are provided. These compositions are analyzed in a Lab Center XRF-1800 x-ray fluorescence spectrometer. Anode potential measurements are given. The degree of tungsten oxidation in relation to temperature is analyzed. Kinetics of tungsten oxidation are studied and tungsten apparent oxidation activation energy is determined. It is concluded that tungsten may be a collector for gold. Tungsten oxidation is a required condition for reducing gold loss.
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Literature
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V. M. Sizyakov, A. A. Vlasov, and V. Yu. Bazhin, “Strategic objectives of the Russian metallurgical complex,” Tsvet. Met., No. 1, 52–58 (2016).
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J. M. Allwood, M. F. Ashby, T. G. Gutowski, and E. Worrell, Material Efficiency: Resources, Conservation and Recycling, 55, 362–381 (2011).CrossRef
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T. A. Aleksandrova and A. N. Telyakov, “Improvement of technology for processing radioelectronic scrap concentrates,” Zap. Gorn. Inst. SPGTI (TU), 189, 271–273 (2011).
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S. J. Mills, P. M. Kartashov, A. R. Kampf, et al., “Tungsten,” CNMNC Newsletter, No. 9, 2539; Mineralog. Magaz., 75, 2525–2540 (2011).
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F. Bodénan, F. Hanrot, I. Moulin, and J. Poirier, “Recycling physically sorted steelworks slag for the metallurgical and cement industries: conclusions of the ORLA research project,” Proc. 12th Europ. Congr. Exhib. Advanced Materials and Processes – Euromat 2011, Montpellier, France, Sept. 12–15, 2011, Sess. C52.
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L. S. Strizhko and S. I. Loleit, Extraction of Nonferrous and Precious Metals from Electronic Scrap, ID Ruda i Metally, Moscow (2009).
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A. N. Telyakov, T. A. Aleksandrova, and M. A. Neezhko, “Features of smelting radioelectronic scrap concentrates,” Metallurg, No. 9, 45–47 (2014).
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D. V. Gorlenkov, A. N. Telyakov, and N. M. Telyakov, “Technology for processing radioelectronic scrap,” Tsvet. Met., No. 9, 52–54 (2015).
Metadata
Title
Effect of Tungsten on Precious Metal Extraction During Processing of Radio-Electronic Scrap
Authors
T. A. Aleksandrova
N. M. Telyakov
A. N. Telyakov
D. V. Gorlenkov
Publication date
11-08-2017
Publisher
Springer US
Published in
Metallurgist / Issue 3-4/2017
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-017-0475-z

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