2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 1: D'Abreu Intl. Symp. / Iron and Steel Making
| Editors: | Kongoli F, Noldin JH, Takano C, Lins F, Gomez Marroquin MC, Contrucci M |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 320 pages |
| ISBN: | 978-1-987820-37-9 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Study on concentrating behavior of vanadium in V-bearing steelmaking slag modified under reduction atmosphere
Liushun Wu1; Jue Wang2; Yuanchi Dong2; Haichuan Wang3; Yun Zhou4;1, Ma'anshan, China; 2ANHUI UNIVERSITY OF TECHOLOGY, Ma'anshan, China; 3SCHOOL OF METALLURGICAL ENGINEERING, ANHUI UNIVERSITY OF TECHNOLOGY, Anhui, China; 4UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing, China;
Type of Paper: Regular
Id Paper: 163
Topic: 2
Abstract:
Steel industry produces a large number of V-bearing converter slag, the slag with relatively high vanadium content is an important resource of vanadium, on the other hand, if it is not properly handled, which will cause heavy metal pollution. At present, the method of wet extraction vanadium is not suitable for V-bearing converter slag with relatively low grade of vanadium, it is necessar to enhance the grade of vanadium by mineral processing before leaching, while the vanadium in the slag dispersely distribute, the concentration effect of ore dressing is poor. Vanadium concentrating in one or two ore phases need to be conducted before mineral processing. Taking into account the following separation vanadium, iron spinel phase has big property difference from main phase in converter slag, which is a suitable choice for vanadium enrichment phase. Based on this, the formation of vanadium iron spinel phase in converter slag modified will be invesigated through experimental and theoretical calculation under reducing conditions in this paper. The research results show that the vanadium content in concentrating phase is more than 12%, meeting the requirement of vanadium grade of hydrometallurgical vanadium recycling.
Keywords:
V-bearing steelmaking slag; vanadium concentration; reduction atmosphere; Vanadium-iron spinelReferences:
[1] Perrine Chaurand, Jerome Rose et al. Speciation of Cr and V within BOF steel slag reused in road constructions. Journal of Geochemical Exploration, 2006, 88(1): 10-14.[2] Perrine Chaurand, Jerome Rose et al. Environmental impacts of steel slag reused in road construction: A crystallographic and molecular (XANES) approach. Journal of Hazardous Materials B, 2007, 139: 537–542.
[3] Han Chunchao, Cui Bo, Qu Jingran. Comparison of vanadium-rich activity of three species fungi of basidiomycetes. Biological Trace Element Research, 2009, 127: 278-283.
[4] Andrea Ceci, Oriana Maggi, Flavia Pinzari, Anna Maria Persiani. Growth responses to and accumulation of vanadium in agricultural soil fungi. Applied Soil Ecology, 2012, 58(1): 1-11.
[5] Hindy Kt，Abdel Sh Hi，Farag Sa．The role of the cement industry in the contamination of air，water，soil and plant with vanadium in Cairo. Environmental Pollution, 1990, 66: 195-205.
[6] Mirazimi S.M.J., Rashchi F., Saba M.. A new approach for direct leaching of vanadium from LD converter slag. Chemical Engineering Research and Design, 2015, 94: 131-140.
[7] Qiu Huidong, Zhang Hong, Zhao Bo, Zhu Jianfang, Liu Derong. Dynamics Study on Vanadium Extraction Technology from Chloride Leaching Steel Slag. Rare Metal Materials and Engineering, 2013, 42(4): 696-699.
[8] Liu Huibin, Du Hao, Wang Dawei, Wang Shaona, Zheng Shili, Zhang Yi. Kinetics analysis of decomposition of vanadium slag by KOH sub-molten salt method. Trans. Nonferrous Met. Soc. China 2013, 23: 1489-1500.
[9] Zhang linna, Sui Zhitong. Extracting vanadium from steel slag with alkaline roasting leaching process. Baosteel BAC, 2006: 103-106.
[10] Mirazimi S.M.J., Rashchi F., Saba M.. Vanadium removal from roasted LD converter slag: Optimization of parameters by response surface methodology (RSM). Separation and Purification Technology, 2013, 116: 175-183.
[11] Aarabi-Karasgani M., Rashchi F., Mostoufi N., Vahidi E.. Leaching of vanadium from LD converter slag using sulfuric acid. Hydrometallurgy, 2010,102: 14-21.
[12] Katarina Lundkvist, Mats Brämming, Mikael Larsson, Caisa Samuelsson. System analysis of slag utilisation from vanadium recovery in an integrated steel plant. Journal of Cleaner Production, 2013, 47: 43-51.
[13] Wu Xingrong, Li Liaosha and Dong Yuanchi. Influence of P2O5 on Crystallization of V-concentrating phase in V-bearing steelmaking slag.ISIJ Int., 2007,47(3): 402-407.
[14] Dong Yuanchi, Wu Xingrong and Li Liaosha. Precipitation and growth of V-concentrating phase in synthetic V-bearing steelmaking slag. ISIJ Int., 2005, 45(9): 1238-1242.
[15] Wu Liushun, Gao Wei, Xie Dawei, Li Liaosha, Dong Yuanchi. Thermodynamic analysis of V-concentrating phase formation in V-bearing steelmaking slag modified by MgO. High Temp. Mater. Proc., 2015, 34(6): 585–591.
[16] Jinichiro Nakano and Seetharaman Sridhar et al. Crystallization of Synthetic Coal-Petcoke Slag Mixtures Simulating Those Encountered in Entrained Bed Slagging Gasifiers. Energy Fuels 2009, 23: 4723-4733.
[17] Jinichiro Nakano and Kyei-Sing Kwong et al. Phase Equilibria in Synthetic Coal Petcoke Slags (Al2O3-CaO-FeO-SiO2-V2O3) under Simulated Gasification Conditions. Energy Fuels, 2011, 25: 3298–3306.
[18] Jinichiro Nakano and Marc Duchesne et al. Thermodynamic effects of calcium and iron oxides on crystal phase formation in synthetic gasifier slags containing from 0 to 27 wt.% V2O3. Fuel, 2014, 161:364-375.
[19] M. Lindvall, J. Grana and D. Sichen. Determination of the vanadium solubility in the Al2O3–CaO(25 mass%)–SiO2 system. Calphad: 2014, 47: 50-55.
[20] M. Lindvall and D. Sichen. Determination of Vanadium Solubility in the Al2O3-CaO(30 Mass Pct)-SiO2 and Al2O3-CaO(35 mass%)-SiO2 System. Metall. Mater. Trans. B, 2015, 46, 733-740.
[21] Ryo Inoue and Hideaki Suito. Distribution of Vanadium between Liquid Iron and MgO Saturated Slags of the System CaO-MgO-FeOx-SiO2, ISIJ, 1982, 22: 705-714.
[22] H. Farah. Oxidation-reduction equilibria of vanadiumin CaO-SiO2, CaO-Al2O3-SiO2 and CaO-MgO-SiO2 melts. J. Mater. Sci., 2003, 38:1885-1894.