Carbothermic reduction of vanadium titanomagnetite with the assistance of sodium carbonate

Luming Chen; Yulan Zhen; Guohua Zhang; Desheng Chen; Lina Wang; Hongxin Zhao; Fancheng Meng; Tao Qi

doi:10.1007/s12613-020-2160-7

Volume 29 Issue 2

Feb. 2022

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2022 > 29(2): 239-247

Luming Chen, Yulan Zhen, Guohua Zhang, Desheng Chen, Lina Wang, Hongxin Zhao, Fancheng Meng, and Tao Qi, Carbothermic reduction of vanadium titanomagnetite with the assistance of sodium carbonate, Int. J. Miner. Metall. Mater., 29(2022), No. 2, pp. 239-247. https://doi.org/10.1007/s12613-020-2160-7

Cite this article as:

Luming Chen, Yulan Zhen, Guohua Zhang, Desheng Chen, Lina Wang, Hongxin Zhao, Fancheng Meng, and Tao Qi, Carbothermic reduction of vanadium titanomagnetite with the assistance of sodium carbonate, Int. J. Miner. Metall. Mater., 29(2022), No. 2, pp. 239-247. https://doi.org/10.1007/s12613-020-2160-7

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Research Article

Carbothermic reduction of vanadium titanomagnetite with the assistance of sodium carbonate

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Corresponding author:
Yulan Zhen E-mail: zhenzhen9545@126.com
Received: 29 May 2020; Revised: 5 August 2020; Accepted: 7 August 2020; Available online: 10 August 2020

Abstract

Abstract

The carbothermic reduction of vanadium titanomagnetite concentrate (VTC) with the assistance of Na₂CO₃ was conducted in an argon atmosphere between 1073 and 1473 K. X-ray diffraction and scanning electron microscopy were used to investigate the phase transformations during the reaction. By investigating the reaction between VTC and Na₂CO₃, it was concluded that molten Na₂CO₃ broke the structure of titanomagnetite by combining with the acidic oxides (Fe₂O₃, TiO₂, Al₂O₃, and SiO₂) to form a Na-rich melt and release FeO and MgO. Therefore, Na₂CO₃ accelerated the reduction rate. In addition, adding Na₂CO₃ also benefited the agglomeration of iron particles and the slag–metal separation by decreasing the viscosity of the slag. Thus, Na₂CO₃ assisted carbothermic reduction is a promising method for treating VTC at low temperatures.
- vanadium titanomagnetite;
- sodium carbonate;
- phase transformation;
- carbothermic reduction;
- slag–metal separation

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References

[1]	F. Zheng, F Chen, Y. Guo, T. Jiang, A. Y. Travyanov, and G. Qiu, Kinetics of hydrochloric acid leaching of titanium from titanium-bearing electric furnace slag, JOM, 68(2016), No. 5, p. 1476. doi: 10.1007/s11837-015-1808-7
[2]	X.W. Lv, Z.Q. Lun, J.Q. Yin, and C.Q. Bai, Carbothermic reduction of vanadium titanomagnetite by microwave irradiation and smelting behavior, ISIJ Int., 53(2013), No. 7, p. 1115. doi: 10.2355/isijinternational.53.1115
[3]	S. Wang, Y.F. Guo, T. Jiang, L, Yang, F. Chen, F.Q. Zheng, X.L. Xie, and M.J. Tang, Reduction behaviors of iron, vanadium and titanium oxides in smelting of vanadium titanomagnetite metallized pellets, JOM, 69(2017), No. 9, p. 1646. doi: 10.1007/s11837-017-2367-x
[4]	S. Samanta, S. Mukherjee, and R. Dey, Upgrading metals via direct reduction from poly-metallic titaniferous magnetite ore, JOM, 67(2015), No. 2, p. 467. doi: 10.1007/s11837-014-1203-9
[5]	M.Y. Wang, S.F. Zhou, X.W. Wang, B.F. Chen, H.X. Yang, S.K. Wang, and P.F. Luo, Recovery of iron from chromium vanadium-bearing titanomagnetite concentrate by direct reduction, JOM, 68(2016), No. 10, p. 2698. doi: 10.1007/s11837-016-2083-y
[6]	Y.Q. Zhao, T.C. Sun, H.Y. Zhao, C. Chen, and X.P. Wang, Effect of reductant type on the embedding direct reduction of beach titanomagnetite concentrate, Int. J. Miner. Metall. Mater., 26(2019), No. 2, p. 152. doi: 10.1007/s12613-019-1719-7
[7]	X.H. Li, J. Kou, T.C. Sun, S.C. Wu, and Y.Q. Zhao, Effects of calcium compounds on the carbothermic reduction of vanadium titanomagnetite concentrate, Int. J. Miner. Metall. Mater., 27(2020), No. 3, p. 301. doi: 10.1007/s12613-019-1864-z
[8]	Y.L. Zhen, G.H. Zhang, and K.C. Chou, Viscosity of CaO−MgO−Al₂O₃−SiO₂−TiO₂ melts containing TiC particles, Metall. Mater. Trans. B, 46(2015), p. 155. doi: 10.1007/s11663-014-0169-x
[9]	W.Q. Fu, Y.C. Wen, and H.E. Xie, Development of intensified technologies of vanadium-bearing titanomagnetite smelting, J. Iron. Steel. Res. Int., 18(2011), No. 4, p. 7. doi: 10.1016/S1006-706X(11)60042-3
[10]	L. Zhang, L.N. Zhang, M.Y. Wang, G.Q. Li, and Z.T. Sui, Precipitation selectivity of perovskite phase from Ti-bearing blast furnace slag under dynamic oxidation conditions, J. Non-Cryst. Solids, 353(2007), No. 22-23, p. 2214. doi: 10.1016/j.jnoncrysol.2007.02.058
[11]	L.Y. Shi, Y.L. Zhen, D.S. Chen, Q. Tao, and L.N. Wang, Carbothermic reduction of vanadium−titanium magnetite in molten NaOH, ISIJ Int., 58(2018), No. 4, p. 627. doi: 10.2355/isijinternational.ISIJINT-2017-515
[12]	Y.M. Zhang, L.Y. Yi, L.N. Wang, D.S. Chen, W.J. Wang, Y.H. Liu, H.X. Zhao, and T. Oi, A novel process for the recovery of iron, titanium, and vanadium from vanadium-bearing titanomagnetite: Sodium modification–direct reduction coupled process, Int. J. Miner. Metal. Mater., 24(2017), No. 5, p. 504. doi: 10.1007/s12613-017-1431-4
[13]	Y.M. Zhang, L.N. Wang, D.S. Chen, W.J. Wang, Y.H. Liu, H.X. Zhao, and T. Oi, A method for recovery of iron, titanium, and vanadium from vanadium-bearing titanomagnetite, Int. J. Miner. Metal. Mater., 25(2018), No. 2, p. 131. doi: 10.1007/s12613-018-1556-0
[14]	F.C. Meng, Y.H. Liu, T.Y. Xue, Q. Su, W.J. Wang, and T. Qi, Structures, formation mechanisms, and ion exchange properties of alpha-, beta-, and gamma-Na₂TiO₃, RSC Adv., 6(2016), No. 113, p. 112625. doi: 10.1039/C6RA16984H
[15]	D.S. Chen, L.S. Zhao, Y.H. Liu, T. Qi, J.C. Wang, and L.N. Wang, A novel process for recovery of iron, titanium, and vanadium from titanomagnetite concentrates: NaOH molten salt roasting and water leaching processes, J. Hazard. Mater., 244-245(2013), p. 588. doi: 10.1016/j.jhazmat.2012.10.052
[16]	D.S. Chen, B. Song, L.N. Wang, T. Qi, Y. Wang, and W.J. Wang, Solid state reduction of Panzhihua titanomagnetite concentrates with pulverized coal, Miner. Eng., 24(2011), No. 8, p. 864. doi: 10.1016/j.mineng.2011.03.018
[17]	L.H. Zhou and F.H. Zeng, Statistical analysis of the effect of Na₂CO₃ as additive on the reduction of vanadic−titanomagnetite−coal mixed pellets, Adv. Mater. Res., 97-101(2010), p. 465. doi: 10.4028/www.scientific.net/AMR.97-101.465
[18]	Z.H. Zhu, G.Q. Lu, and R.T. Yang, New insights into alkali-catalyzed gasification reactions of carbon: Comparison of Na₂O reduction with carbon over Na and K catalysts, J. Catal., 192(2000), No. 1, p. 77. doi: 10.1006/jcat.2000.2817
[19]	E. Foley and K.P. Mackinnon, Alkaline roasting of ilmenite, J. Solid State Chem., 1(1970), No. 3-4, p. 566. doi: 10.1016/0022-4596(70)90143-X
[20]	V. Tathavadkar, and A. Jha, The effect of molten sodium titanate and carbonate salt mixture on the alkali roasting of ilmenite and rutile minerals, [in] VII International Conference on Molten Slags Fluxes and Salts, Cape Town, p. 255.
[21]	A. Lahiri, and A. Jha, Kinetics and reaction mechanism of soda ash roasting of ilmenite ore for the extraction of titanium dioxide, Metall. Mater. Trans. B, 38(2007), No. 6, p. 939. doi: 10.1007/s11663-007-9095-5
[22]	S. Parirenyatwa, L. Escudero-Castejon, Y. Hara, A. Jha, and S Sanchez-Segado, Comparative study of alkali roasting and leaching of chromite ores and titaniferous minerals, Hydrometallurgy, 165(2016), p. 213. doi: 10.1016/j.hydromet.2015.08.002
[23]	C. Li, A.F. Reid, and S. Saunders, Nonstoichiometric alkali ferrites and aluminates in the systems NaFeO₂−TiO₂, KFeO₂−TiO₂, KAlO₂−TiO₂, and KAlO₂−SiO₂, J. Solid State Chem., 3(1971), No. 4, p. 614. doi: 10.1016/0022-4596(71)90109-5
[24]	J.W. Kim and H.G. Lee, Thermal and carbothermic decomposition of Na₂CO₃ and Li₂CO₃, Metall. Mater. Trans. B, 32(2001), No. 1, p. 17. doi: 10.1007/s11663-001-0003-0
[25]	C.W. Bale, P. Chartrand, S.A. Degterov, G. Eriksson, K. Hack, R. Ben Mahfoud, J. Melançon, A.D. Pelton, and S. Petersen, FactSage thermochemical software and databases, Calphad, 26(2002), No. 2, p. 189. doi: 10.1016/S0364-5916(02)00035-4
[26]	P.C. Holloway, T.H. Etsell, and A. L. Murland, Roasting of La Oroya zinc ferrite with Na₂CO₃, Metall. Mater. Trans. B, 38(2007), No. 5, p. 781. doi: 10.1007/s11663-007-9082-x
[27]	P.C. Holloway, T.H. Etsell, and A.L. Murland, Use of secondary additives to control the dissolution of iron during Na₂CO₃ roasting of la ooya zinc ferrite, Metall. Mater. Trans. B, 38(2007), No. 5, p. 793. doi: 10.1007/s11663-007-9083-9
[28]	E.N. Selivanov, K.V. Pikulin, L.I. Galkova, R.I. Gulyaeva, and S.A. Petrova, Kinetics and mechanism of natural wolframite interactions with sodium carbonate, Int. J. Miner. Metal. Mater., 26(2019), No. 11, p. 1364. doi: 10.1007/s12613-019-1857-y
[29]	R.Z. Xu, J.L. Zhang, W.X. Han, Z.Y. Chang, and K.X. Jiao, Effect of BaO and Na₂O on the viscosity and structure of blast furnace slag, Ironmaking Steelmaking, 47(2020), No. 2, p. 168. doi: 10.1080/03019233.2018.1498761
[30]	A. Tomita, Catalysis of carbon–gas reactions, Catal. Surv. Jpn., 5(2001), No. 1, p. 17. doi: 10.1023/A:1012205714699
[31]	W. Pan, Z.J. Ma, Z.X. Zhao, W. H. Kim, and D.J. Min, Effect of Na₂O on the reduction of Fe₂O₃ compacts with CO/CO₂, Metall. Mater. Trans. B, 43(2012), No. 6, p. 1326. doi: 10.1007/s11663-012-9738-z