Effects of Flotation Reagents on Flotation Kinetics of Aphanitic (Microcrystalline) Graphite

Xinnan Hu; Zheng Tong; Jie Sha; Muhammad Bilal; Yujin Sun; Rui Gu; Chao Ni; Chaoqun Li; Yumeng Deng

doi:10.3390/separations9120416

Separations (Dec 2022)

Effects of Flotation Reagents on Flotation Kinetics of Aphanitic (Microcrystalline) Graphite

Xinnan Hu,
Zheng Tong,
Jie Sha,
Muhammad Bilal,
Yujin Sun,
Rui Gu,
Chao Ni,
Chaoqun Li,
Yumeng Deng

Affiliations

Xinnan Hu: Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
Zheng Tong: Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
Jie Sha: Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
Muhammad Bilal: Department of Mining Engineering, Balochistan University of Information Technology Engineering and Management Sciences (BUITEMS), Quetta 87300, Pakistan
Yujin Sun: College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Rui Gu: Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
Chao Ni: Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
Chaoqun Li: Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
Yumeng Deng: Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China

DOI: https://doi.org/10.3390/separations9120416
Journal volume & issue: Vol. 9, no. 12
p. 416

Abstract

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The flotation method is widely used for the preliminary beneficiation of aphanitic (microcrystalline) graphite. However, there is limited literature regarding the effects of flotation reagents on the flotation kinetics of aphanitic graphite. In this study, six commonly used flotation kinetic models were used to fit the flotation experimental data of aphanitic graphite. The classical first-order model was found to be most suitable for describing flotation kinetics of aphanitic graphite. The modified flotation rate constant (Km) was then applied to evaluate the effects of collector, frother, and inhibitor on aphanitic graphite flotation kinetics. Compared to diesel oil and terpineol oil, kerosene and 2-octanol produced a greater Km. The highest Km was obtained at an inhibitor dosage of 15 mg/L.

Published in Separations

ISSN: 2297-8739 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Physics; Science: Chemistry
Website: http://www.mdpi.com/journal/separations

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