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Volume 11
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10.3390/min11010059
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Article

Flotation Behavior and Synergistic Mechanism of Benzohydroxamic Acid and Sodium Butyl-Xanthate as Combined Collectors for Malachite Beneficiation

by
Chenyang Zhang
1,2,
Qiqi Zhou
1,
Bingxuan An
1,
Tong Yue
1,
Shengda Chen
1,
Mengfei Liu
1,
Jianyong He
1,
Jianyu Zhu
1,
Daixiong Chen
2,
Bo Hu
3,* and
Wei Sun
1,*
1
Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-Containing Mineral Resources, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
2
Key Laboratory of Hunan Province for Comprehensive Utilization of Complex Copper-Lead Zinc Associated Metal Resources, Hunan Research Institute for Nonferrous Metals, Changsha 410100, China
3
School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
*
Authors to whom correspondence should be addressed.
Minerals 2021, 11(1), 59; https://doi.org/10.3390/min11010059
Submission received: 25 November 2020 / Revised: 25 December 2020 / Accepted: 2 January 2021 / Published: 10 January 2021
(This article belongs to the Section Mineral Processing and Extractive Metallurgy)
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Abstract

Sulfuration flotation is the most widely used technology in malachite beneficiation. However, the inhomogeneity of malachite surfaces usually results in a non-uniform sulfuration surface. The motivation of this work is attempt to adopt different functional combination collectors to enhance the sulfuration flotation of malachite. Accordingly, the flotation behaviors and adsorption mechanisms of benzohydroxamic acid (BHA) and sodium butyl-xanthate (SBX) on the surface of malachite were systematically investigated using flotation tests, zeta-potential measurements, Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy, and first-principle calculations. The test results of vulcanization flotation showed that the combined collectors of SBX with BHA possessed a higher recovery than only using SBH by 20%, indicating that there may be a synergistic effect between BHA and SBX. The IR and Raman spectroscopy demonstrated that both BHA and SBX could chemically adsorb onto the malachite surface. The density functional theory (DFT) calculation results further indicated that the combined adsorption energy of BHA and SBX was much lower than that of only BHA or SBX, which confirmed the synergistic effects of BHA and SBX on the malachite surface. This work may shed new light on the design and development of more efficient combined flotation reagents.
Keywords: malachite; flotation; combined collectors; synergistic effect; DFT calculations malachite; flotation; combined collectors; synergistic effect; DFT calculations
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MDPI and ACS Style

Zhang, C.; Zhou, Q.; An, B.; Yue, T.; Chen, S.; Liu, M.; He, J.; Zhu, J.; Chen, D.; Hu, B.; et al. Flotation Behavior and Synergistic Mechanism of Benzohydroxamic Acid and Sodium Butyl-Xanthate as Combined Collectors for Malachite Beneficiation. Minerals 2021, 11, 59. https://doi.org/10.3390/min11010059

AMA Style

Zhang C, Zhou Q, An B, Yue T, Chen S, Liu M, He J, Zhu J, Chen D, Hu B, et al. Flotation Behavior and Synergistic Mechanism of Benzohydroxamic Acid and Sodium Butyl-Xanthate as Combined Collectors for Malachite Beneficiation. Minerals. 2021; 11(1):59. https://doi.org/10.3390/min11010059

Chicago/Turabian Style

Zhang, Chenyang, Qiqi Zhou, Bingxuan An, Tong Yue, Shengda Chen, Mengfei Liu, Jianyong He, Jianyu Zhu, Daixiong Chen, Bo Hu, and et al. 2021. "Flotation Behavior and Synergistic Mechanism of Benzohydroxamic Acid and Sodium Butyl-Xanthate as Combined Collectors for Malachite Beneficiation" Minerals 11, no. 1: 59. https://doi.org/10.3390/min11010059

APA Style

Zhang, C., Zhou, Q., An, B., Yue, T., Chen, S., Liu, M., He, J., Zhu, J., Chen, D., Hu, B., & Sun, W. (2021). Flotation Behavior and Synergistic Mechanism of Benzohydroxamic Acid and Sodium Butyl-Xanthate as Combined Collectors for Malachite Beneficiation. Minerals, 11(1), 59. https://doi.org/10.3390/min11010059

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