2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 7. Non-ferrous / Mineral Processing / Environmental Protection

Editors:	F. Kongoli, Z. Wang, T. Okura, E. Souza, A. C. Silva
Publisher:	Flogen Star OUTREACH
Publication Year:	2018
Pages:	256 pages
ISBN:	978-1-987820-94-2
ISSN:	2291-1227 (Metals and Materials Processing in a Clean Environment Series)

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Application Study on Technology of Reducing Copper Content in Discarded Slag

Zhi Wang¹; Ruimin Bian¹; Chuanbing Wei¹; Baojun Zhao²; Haibin Wang¹; Wenzhao Cui¹;
¹DONGYING FANGYUAN, Dongying, China; ²THE UNIVERSITY OF QUEENSLAND, Brisbane, Australia;
Type of Paper: Keynote
Id Paper: 65
Topic: 6

Abstract:

Effects of flux, vulcanizing agent and reductant on slag cleaning in new-type slag cleaning furnace (Φ3.6×8.1m) were investigated under the conditions including smelting temperature of 1200°C and 1250°C, settling time of 30 min and 60 min, and Fe/SiO2 of 1.7-1.9. The results show that addition of SiO2, B2O3 or CaF2 into original copper smelting slag can improve settling separation effect. Though no effect on copper recovery, addition of FeS can provide heat required by reaction with oxygen and reduce copper dissolution in spinel phase and slag. Copper content in discarded slag can be controlled at 0.26% under the optimum comprehensive conditions with ratio of oxygen to natural gas of 1.6.

Keywords:

Copper; Non-Ferrous; Recovery; Slag; Technology; Temperature;


References:

[1] BIAN R M. ZHAO B J. LI X. National and international S&T cooperation project, technical report of "Associated research and development of the technology and apparatus of reducing Cu content in discarded slag"[R]. Dongying Fangyuan Nonferrous Metals Co., Ltd, 2013.<br />[2] MA X D. ZHAO B J. Progress report of Fangyuan copper smelting slag cleaning by pyro metallurgical route [R]. Chemical and Engineering Academy of UQ. 2014. <br />[3] BIAN R M. YUAN J Z. CHEN J H. Copper smelting slag cleaning method and techno-economic analysis [J]. Nonferrous Metal (Smelting Section). 2012. 14-17.<br />[4] CHEN M.CUI Z. ZHAO B. Slag chemistry of Bottom Blown Copper Smelting Furnace at Dongying Fangyuan[C]//Proceedings of 6th International Symposium on High-Temperature Metallurgical Processing. 2015:257-264.<br />[5] CHEN M. ZHAO B J. Viscosity measurements of SiO2-FeO-CaO system in equilibrium with metallic Fe [J]. Metallurgical and Materials Transactions. 2015.46(2):577-584.<br />[6] SHUI L. CUI Z. MA X.et al. Mixing phenomena in a Bottom Blown Copper Smelter; A water model study[J].Metallurgical and Materials transactions B. 2015.46(3):1218-1225.

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Cite this article as:

Wang Z, Bian R, Wei C, Zhao B, Wang H, Cui W. (2018). Application Study on Technology of Reducing Copper Content in Discarded Slag. In F. Kongoli, Z. Wang, T. Okura, E. Souza, A. C. Silva (Eds.), Sustainable Industrial Processing Summit SIPS2018 Volume 7. Non-ferrous / Mineral Processing / Environmental Protection (pp. 67-76). Montreal, Canada: FLOGEN Star Outreach