Abstract
A study on sintering of chromite fines was conducted through sintering pot test. The effect of sintering parameters including mix moisture content, coke breeze rate, bentonite dosage and sintering suction was investigated. It was found that conventional sintering process can be applied to the agglomeration of chromite fines as well. Appropriate parameters for chromite fines sintering were 8.0% moisture, 7.0% coke breeze , 2.0% bentonite and 14 kPa sintering suction. Furthermore, the consolidation characteristic of chromite sinter was observed by using a microscope, scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). It can be found that the sinter mainly consisted of chromohercynite, forsterite and monticellite. Besides, the element distribution of Fe and Cr in chromohercynite was quite different. Fe mainly distributed on the outer layer while Cr distributed in the inner layer. The chromohercynite formed from liquid phase has higher Fe and Mg content.
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References
Murthy YR, Tripathy SK, Kumar CR (2011) Chrome ore beneficiation challenges & opportunities—a review. Miner Eng 24(5):375–380
Zhao NC, Zhang QX (1998) Practical technical manual for ferro-alloy production. Metallurgical Industry Press, Beijing
Cui HJ, Chen J, Feng XM, Ling N, Liu JY (2007) Numerical modeling of temperature rising characteristic curve for carbon containing chromite fines in microwave field. China Metall 17(1):30–37
Yan JF, Chen JX, Hu L (2007) Chromium metallurgy. Metallurgical Industry Press, Beijing
Gu F, Wills BA (1988) Chromite-mineralogy and processing. Miner Eng 1(3):235–240
Liu PX, Chu SJ (2011) Research on cold briquet with chromite fines. Res Iron Steel 39(3):12–15
Zhang MJ, Liu FQ (1997) The study on the chromite sintering. Ferro-Alloys 3(1):7–10
Zhu DQ, Yang CC, Pan J, Lu LM, Liu XQ (2018) An integrated approach for production of stainless steel master alloy from a low grade chromite concentrate. Powder Technol 335(C):103–113
Zhu DQ, Lee J, Fan XH, Pan J (2004) Literature review of the agglomeration of chromite fines. Sinter Pelletizing 29(2):27–29
Qiu WJ (2003) Balling-up mechanism and consolidation of cold briquetting from fine ore. Ferro-Alloys 3(1):7–9
Nandy B, Chaudhury MK, Paul J (2009) Sintering characteristics of Indian chrome ore fines. Metall Mater Trans B 40(5):662–675
Fukagawa S, Shimoda T (1987) Smelting reduction mechanism of chromium ore sinter by solid carbon. Trans Iron Steel Inst Jpn 27(8):609–617
Wu SL, Han HL, Jiang WZ, Zhu JM, Feng GS, Zhang ZC (2009) MgO interaction mechanism in sinter. J Univ Sci Technol Beijing 31(4):428–432
He ZF, Jiang RB, Liu SC (2016) Analysis of chromite ore resources security in China. China Ming Mag 25(6):7–11
Xiong FW, Hu BS, Gui YL (2011) Influence of the sintering process of serpentine in TangSteel. J Hebei Politechnic Univ (Natural Science Edition) 33(1):32–36
Acknowledgements
The research was financially supported by the National Natural Science Foundation of China (No. U1760107, U1660206), Hunan Provincial Co-Innovation Center for Clean and Efficient Utilization of Strategic Metal Mineral Resources and Innovation Driven Plan of Central South University (No.2015CX005)
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Fan, X. et al. (2019). Sintering Characteristic and Consolidation Behaviour of Chromite Fines. In: Jiang, T., et al. 10th International Symposium on High-Temperature Metallurgical Processing. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05955-2_24
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DOI: https://doi.org/10.1007/978-3-030-05955-2_24
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