Effects of magnetic field on fluidization properties of magnetic pearls--颗粒学报PARTICUOLOGY

Fan, M., Luo, Z., Zhao, Y., Chen, Q., Tao, D., Tao, X., & Chen, Z. (2007). Effects of magnetic field on fluidization properties of magnetic pearls. China Particuology, 5(1), 151–155. https://doi.org/10.1016/j.cpart.2007.01.013

Effects of magnetic field on fluidization properties of magnetic pearls

Maoming Fan ^a b *, Zhenfu Luo ^b, Yuemin Zhao ^b, Qingru Chen ^b, Daniel Tao ^a, Xiuxiang Tao ^b, Zhenqiang Chen ^b

a Department of Mining Engineering, University of Kentucky, 230 Mining and Mineral Resources Building, Lexington, KY 40506, USA
b School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221008, Jiangsu, China

10.1016/j.cpart.2007.01.013

Volume 5, Issues 1–2, February–April 2007, Pages 151-155

Received 6 July 2006, Accepted 16 January 2007, Available online 6 June 2007.

E-mail: fmaoming@hotmail.com

Highlights

Abstract

An experimental study of the influence of external magnetic field on the fluidization behavior of magnetic pearls was carried out. Magnetic pearls are a magnetic form of iron oxide that mainly consists of Fe₂O₃ which are recovered from a high-volume power plant fly ash from pulverized coal combustion. Due to its abundance, low price and particular physical and chemical properties, magnetic pearls can be used as a heavy medium for minerals or solid waste dry separation based on density difference. This paper introduces the properties of magnetic pearls and compares the performance of magnetic pearls fluidised bed operation with or without an external magnetic field. Experimental results show that an external magnetic field significantly improves the fluidization performance of magnetic pearls such as uniformity and stability.

Graphical abstract

Keywords

Magnetic pearls; Magnetic field; Fluidization properties; Gravity separation

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