2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 8: Non-ferrous, Rotary Kiln, Ferro-alloys, Rare Earth, Coal
| Editors: | Kongoli F, Xueyi G, Shumskiy V, Kozlov P, Capiglia C, Silva AC, Turna T |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 350 pages |
| ISBN: | 978-1-987820-50-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Mechanism of oxygen-enriched bottom blowing copper smelting process (SKS)
Qinmeng Wang1; Qinghua Tian1; Xueyi Guo1;1CENTRAL SOUTH UNIVERSITY, Changsha, China;
Type of Paper: Regular
Id Paper: 173
Topic: 6
Abstract:
Mechanism model of copper oxygen-enriched bottom blowing smelting (SKS) was constructed by analyzing smelting process deeply, combined with related theories of a copper metallurgical process. Model¡¯s cross section includes seven functional layers, i.e. gas layer, mineral decomposition transition layer, slag layer, slag formation transition layer, matte formation transition layer, the weak oxide layer and the strong oxide layer. Longitudinal section is divided into three functional regions, including reaction region, separation transition region, and liquid phase clarification region. The layers or regions play different roles and constitute an organic unit. Ploycomponent, such as CuFeS2, FeS2, Cu2S, FeS, 2FeO•SiO2, Cu2O, FeO, Fe3O4, SO2, H2O, N2 and S2, transfers quickly through the interface between different layers and regions, with the effect of character differentiation and fluid flow. SKS is at the state of dynamic non-steady multiphase equilibrium, and the value of oxygen and sulfur potential changes gradually in longitudinal and cross direction, and the capacity of SKS could rise by reasonably controlling the potential value in different layers and regions.
Keywords:
Copper; Non-Ferrous; Smelting;References:
[1] GUO Xueyi, SONG Yu. Substance Flow Analysis of Copper in China[J]. Resources, Conservation & Recycling, 2008, 52 (6) :874-882.[2] XU Kai, XU Xui. Tendency of world copper industry development and countermeasures of chinese copper industry [J]. Nonferrous Metals, 2003,55(2):129-131.
[3] CHEN Shupin, WU Zengling, LAN Bibo, GUO Qi-zhan. Summarize on the technology of copper pyrometallurgy[J]. Copper Engineering, 2010, (4): 44-49.
[4] CUI Zhixiang, SHEN Dianbang, WANG Zhi, LI Wei-qun, BIAN Rui-min. New process of copper smelting with oxygen enriched bottom blowing technology[J]. Nonferrous Metals (Extractive Metallurgy), 2010, (3): 17-20.
[5] SHEN Dianbang. New process of copper smelting with oxygen enriched bottom blowing technology[EB/OL]. 2012,1,31. http://www.cmra.cn/a/33333/2012/0131/228221.html.
[6] CHEN Zhiruo. The application of oxygen bottom-blown bath smelting of copper[J]. China Nonferrous Metallurgy. 2009, (5): 16-22.
[7] LI Chuntang. Oxygen bottom blowing technology by three continuous furnaces is the world's top copper metallurgy process [N]. China Nonferrous Metals News, 2009,7,11(008).
[8] YAZAWA A. Thermodynamic considerations of copper smelting[J]. Canadian Metallurgical Quarterly, 1974, 13(3): 443-453.
[9] SERGEI A D, ARTHUR D P. A thermodynamic database for copper smelting and converting [J]. Metallurgical and Materials Transactions B, 1999, 30(4): 661-669.
[10] SRIDHAR R, TOGURI J M, SIMEONOV S. Copper losses and thermodynamic considerations in copper smelting [J]. Metallurgical and Materials Transactions B, 1997, 28(2): 191-200.
[11] NAGAMORI M, MACKEY P J. Thermodynamics of copper matte converting: Part 1. Fundamentals of the Noranda process [J]. Metallurgical and Materials Transactions B, 1978, 9(3): 255-265.
[12] MACKEY P J. The physical chemistry of copper smelting slags-A review[J]. Canadian Metallurgical Quarterly, 1982,21(3): 221-260.
[13] ZHANG Zhenyang，CHEN Zhu，YAN Hongjie，LIU Fangkan，LIU Liu，CUI Zhixiang，SHEN Dianbang. Numerical simulation of gas-liquid multi-phase flows in oxygen enriched bottom-blown furnace[J]. The Chinese Journal of NOOferrous Metals, 2012, 22(6): 1826-1834.
[14] ZHANG Zhenyang, YAN Hongjie, LIU Fangkan, WANG Jimin. Optimization analysis of lance structure parameters in oxygen enriched bottom-blown furnace[J]. The Chinese Journal of Nonferrous Metals, 2013, 23(5): 1471-1477.
[15] ZHOU Jiemin, GAO Qiang, LIU Liu, et al. Fluid-flow characteristics and critical phenomenon in a bottom blowing bath[J]. Advanced Materials Research, 2012,402: 365−370.
[16] QU Shengli, DONG Zhunqin, CHEN Tao. Study on gold collection in matte with oxygen enriched bottom blowing smelting process[J]. Nonferrous Metals (Extractive Metallurgy), 2013, (6): 40-42.
[17] CUI Zhixiang, SHEN Dianbang, WANG Zhi, BIAN Ruimin. Low-carbon economy and new process of copper smelting with oxygen enriched bottom blowing technology[J]. Energy Saving on Technique, 2011, (1): 17-20.
[18] ZHU Zuze,HE Jiaqi. Current copper metallurgy [M]. Beijing:Science Press, 2003: 320-322.
[19] YAZAWA A. Thermodynamic evaluation of extractive metallurgical process[J]. Metallurgical Transactions B, 1979, 10(3): 307-321.