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Open AccessArticle

Lauryl Phosphate Flotation Chemistry in Barite Flotation

by Ying Lu 1,2,†, Weiping Liu 3,*,†, Xuming Wang 1,3, Huaigang Cheng 1, Fangqin Cheng 1,* and Jan D. Miller 3
1
Institute of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes, Shanxi University, No 92 Wucheng Road, Taiyuan 030006, China
2
Department of Environment and Safety Engineering, Taiyuan Institute of Technology, No 31 Xinlan Road, Taiyuan 030008, China
3
Department of Materials Science and Engineering, College of Mines and Earth Sciences, University of Utah, 135 S 1460 E, Room 412, Salt Lake City, UT 84112-0114, USA
*
Authors to whom correspondence should be addressed.
These authors contributed equally to the work.
Minerals 2020, 10(3), 280; https://doi.org/10.3390/min10030280 (registering DOI)
Received: 30 January 2020 / Revised: 8 March 2020 / Accepted: 9 March 2020 / Published: 20 March 2020
(This article belongs to the Special Issue Barite)
Barite has numerous applications including barium mud for oil well drilling, manufacture of elemental barium, filler for paper and rubber industries, and contrast material for X-ray radiology for the digestive system. Currently, froth flotation is the main method for the beneficiation of barite using fatty acid as a typical collector. In this research, it was found that lauryl phosphate is also a promising collector for barite flotation. Results from microflotation, contact angle, and zeta potential indicate that lauryl phosphate is adsorbed on the barite surface and thus achieves superior flotation efficiency at a wide pH range. The interfacial water structure and wetting characteristics of barite surface with/without lauryl phosphate adsorption were also evaluated by molecular dynamics simulations (MDS). The results from molecular dynamics simulations and interaction energy calculations are in accord with the experimental results, which suggest that lauryl phosphate might be a potential collector for the flotation of barite. View Full-Text
Keywords: barite; lauryl phosphate; flotation barite; lauryl phosphate; flotation
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MDPI and ACS Style

Lu, Y.; Liu, W.; Wang, X.; Cheng, H.; Cheng, F.; Miller, J.D. Lauryl Phosphate Flotation Chemistry in Barite Flotation. Minerals 2020, 10, 280.

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