Abstract
The kinetics of iron leaching from ilmenite in hydrochloric acid solutions were investigated. The effects of pre-oxidation roasting, leaching temperature, and holding time on iron extraction rate were determined. The results obtained show that the extraction of iron is significantly enhanced by pre-oxidation roasting and increasing leaching temperature from 75 to 108 °C. The results of the kinetic analysis of the leaching data indicate that the reaction is controlled by diffusion through the product layer. The apparent activation energy for the extraction of iron has been calculated to be 62.5 and 55.1 kJ/mol for untreated and oxidized ilmenite , respectively.
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References
Braun JH, Baidins A, Marganski RE (1992) TiO2 pigment technology: a review. Prog Org Coat 20(2):105–138
Mackey TS (1974) Acid leaching of ilmenite into synthetic rutile. Ind Eng Chem Product Res Dev 13(1):9–18
Zhang W, Zhu Z, Cheng CY (2011) A literature review of titanium metallurgical processes. Hydrometallurgy 108(3):177–188
Mahmoud MHH, Afifi AAI, Ibrahim IA (2004) Reductive leaching of ilmenite ore in hydrochloric acid for preparation of synthetic rutile. Hydrometallurgy 73(1):99–109
Olanipekun E (1999) A kinetic study of the leaching of a Nigerian ilmenite ore by hydrochloric acid. Hydrometallurgy 53(1):1–10
Sarker MK, Rashid A, Kurny ASW (2006) Kinetics of leaching of oxidized and reduced ilmenite in dilute hydrochloric acid solutions. Int J Miner Process 80(2):223–228
Tsuchida H, Narita E, Takeuchi H et al (1982) Manufacture of high pure titanium (IV) oxide by the chloride process: kinetic study on leaching of ilmenite ore in concentrated hydrochloric acid solution. Bull Chem Soc Jpn 55(6):1934–1938
Vásquez R, Molina A (2012) Effects of thermal preoxidation on reductive leaching of ilmenite. Miner Eng 39:99–105
Van Dyk JP, Vegter NM, Pistorius PC (2002) Kinetics of ilmenite dissolution in hydrochloric acid. Hydrometallurgy 65(1):31–36
Li C, Liang B, Wang HY (2008) Preparation of synthetic rutile by hydrochloric acid leaching of mechanically activated Panzhihua ilmenite. Hydrometallurgy 91(1):121–129
Lv W, Lv XW, Zhang YY et al (2017) Isothermal oxidation kinetics of ilmenite concentrate powder from Panzhihua in air. Powder Technol. https://doi.org/10.1016/j.powtec.2017.07.058
Zhang YY, Lv W, Lv XW et al (2017) Oxidation kinetics of ilmenite concentrate by non-isothermal thermogravimetric analysis. J Iron Steel Res 24:678–684
Liu SL, Xiang JY (2016) The effects of thermal pretreatment on leaching of yunnan ilmenite with hydrochloric acid. Metall Mater Trans B 47(2):1334–1339
Xiang JY, Liu SL, Lv XW et al (2016) Preparation of rutile from ilmenite concentrate through pressure leaching with hydrochloric acid. Metall Mater Trans B 48(2):1–9
Acknowledgements
This work was supported by the Natural Science Foundation of China [grant numbers 51404047 and 51234010] and the Basic and Frontier Research Program of Chongqing [grant numbers cstc2014jcyjA50011]
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Xiang, J., Huang, Q., Lv, W., Lv, X., Bai, C. (2018). Effects of Pre-oxidation on the Kinetics of Iron Leaching from Ilmenite in Hydrochloric Acid Solution. In: Kim, H., et al. Rare Metal Technology 2018. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72350-1_29
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DOI: https://doi.org/10.1007/978-3-319-72350-1_29
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