ORCID Profile
0000-0001-6291-7656
Current Organisation
China University of Mining and Technology
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Publisher: Elsevier BV
Date: 06-2020
Publisher: Inderscience Publishers
Date: 2021
Publisher: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Date: 2018
DOI: 10.5277/PPMP1873
Publisher: Elsevier BV
Date: 11-2022
Publisher: Elsevier BV
Date: 11-2019
Publisher: Elsevier BV
Date: 02-2022
Publisher: Elsevier BV
Date: 09-2021
Publisher: Elsevier BV
Date: 05-2022
Publisher: Elsevier BV
Date: 04-2022
Publisher: Elsevier BV
Date: 08-2022
Publisher: Politechnika Wroclawska Oficyna Wydawnicza
Date: 14-09-2020
DOI: 10.37190/PPMP/127501
Publisher: Informa UK Limited
Date: 17-08-2020
Publisher: Informa UK Limited
Date: 30-04-2021
Publisher: Elsevier BV
Date: 03-2021
Publisher: American Chemical Society (ACS)
Date: 16-08-2021
Publisher: Elsevier BV
Date: 11-2019
Publisher: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Date: 2017
DOI: 10.5277/PPMP170128
Publisher: Informa UK Limited
Date: 31-08-2022
Publisher: Informa UK Limited
Date: 14-09-2022
Publisher: American Chemical Society (ACS)
Date: 19-09-2023
Publisher: Informa UK Limited
Date: 16-05-2020
Publisher: Elsevier BV
Date: 09-2015
Publisher: Elsevier BV
Date: 12-2017
Publisher: Elsevier BV
Date: 07-2017
Publisher: Politechnika Wroclawska Oficyna Wydawnicza
Date: 10-01-2022
DOI: 10.37190/PPMP/145667
Publisher: MDPI AG
Date: 23-02-2022
DOI: 10.3390/MIN12030280
Abstract: Fluorine appears in coal and is released into the atmosphere upon combustion, resulting in harmful impacts on the environment and life, which needs to be removed from coal before utilization. Coal can be processed by flotation and gravity separation to reduce its fluorine content. In this study, a lignite s le from a mine in Shaanxi Province, China, was characterized using the float–sink test, sieving test, X-ray diffraction (XRD), and polarized light microscopy. Mineralogical analysis indicated that the fluorine in coal is mainly contained in Muscovite and polylithionite, and partly in pyrite. The washability and floatability analyses were employed to evaluate the extent of fluorine removal from .5 and .5 mm size fractions of lignite, respectively. Compared to the raw s le that contained 347.74 μg/g fluorine content, the proposed combination of gravity-flotation separation process decreased the fluorine content to 90.14 μg/g, which meets the requisites of coal standards.
Publisher: Informa UK Limited
Date: 27-03-2023
Publisher: Elsevier BV
Date: 2020
Publisher: Frontiers Media SA
Date: 24-01-2023
Publisher: Elsevier BV
Date: 11-2018
Publisher: MDPI AG
Date: 11-01-2017
DOI: 10.3390/MIN8010015
Publisher: Elsevier BV
Date: 04-2023
Publisher: Elsevier BV
Date: 2023
Publisher: Elsevier BV
Date: 03-2017
Publisher: Elsevier BV
Date: 12-2022
Publisher: Informa UK Limited
Date: 16-07-2019
Publisher: Elsevier BV
Date: 2022
Publisher: Elsevier BV
Date: 09-2019
Publisher: MDPI AG
Date: 27-07-2022
DOI: 10.3390/MIN12080944
Abstract: Bulk micro-nano-bubbles (BMNBs) have been proven to be effective at improving the flotation recovery and kinetics of fine-grained minerals. However, there is currently no research reported on the correlation between the properties of BMNBs and flotation performance. For this purpose, aqueous dispersions with erse properties were created by altering preparation time (0, 1, 2, 3, 5, and 7 min), aeration rate (0, 0.5, 1, 1.5, and 2 L/min) and aging time (0, 0.5, 1, and min). Micro- and nano-bubbles were characterized using focused beam reflection measurements (FBRM) and nanoparticle tracking analysis (NTA), respectively. The micro-flotation of quartz particles was performed using an XFG-cell in the presence and absence of BMNBs with Cetyltrimethylammonium bromide (CTAB) as a collector. The characterization of bubble sizes showed that the bulk micro-bubble (BMB) and bulk nanobubble (BNB) diameters ranged from 1–10 μm and 50–400 nm, respectively. It was found that the preparation parameters and aging time considerably affected the number of generated bubbles. When BNBs and BMBs coexisted, the recovery of fine quartz particles significantly improved (about 7%), while in the presence of only BNBs the promotion of flotation recovery was not significant (2%). This was mainly related to the aggregate via bridging, which was an advantage for quartz flotation. In comparison, no aggregates were detected when only nano-bubbles were present in the bulk solution.
Publisher: Elsevier BV
Date: 10-2023
Publisher: Elsevier BV
Date: 08-2021
Publisher: Informa UK Limited
Date: 26-06-2023
Publisher: Elsevier BV
Date: 05-2023
Publisher: Informa UK Limited
Date: 18-04-2018
Publisher: Elsevier BV
Date: 03-2022
Publisher: Elsevier BV
Date: 12-2016
Publisher: Informa UK Limited
Date: 03-06-2021
Publisher: Informa UK Limited
Date: 22-08-2023
Publisher: Informa UK Limited
Date: 13-02-2022
Publisher: Elsevier BV
Date: 03-2021
Publisher: Elsevier BV
Date: 04-2020
Publisher: Elsevier BV
Date: 09-2022
Publisher: Wiley
Date: 09-02-2023
DOI: 10.1002/CJCE.24828
Abstract: The cyclonic micro‐bubble flotation column (FCMC) is an efficient flotation device for the separation of fine minerals, but its mechanisms are rarely studied using computational fluid dynamics (CFD). This paper reports the air–water two‐phase computational fluid dynamics‐population balance model (CFD‐PBM) simulations for the column flotation unit of an FCMC. The shear stress transport (SST) k‐ω model with curvature correction (CC) is used to simulate turbulence effects. Then, the interphase forces models considering bubble size distribution are selected according to the experimental data in a bubble column, which is in analogy to the column flotation unit of the FCMC. Finally, the optimal combination of interphase forces models (i.e., the Ishii–Zuber drag force model, the Hosokawa–Frank wall lubrication force model, and the Lopez de Bertodano turbulent dispersion force model) is applied to simulate an FCMC with a superficial gas velocity of 0.0144 m/s. The results show that the CFD‐PBM simulation can achieve a relative error of 9.09% for gas volume fraction and −5.45% for bubble rising velocity, indicating the reliability of the selected combination of interphase forces models.
Publisher: Elsevier BV
Date: 03-2022
Publisher: Elsevier BV
Date: 2022
Publisher: Informa UK Limited
Date: 19-04-2022
Publisher: Elsevier BV
Date: 05-2018
Publisher: Elsevier BV
Date: 10-2023
Publisher: Informa UK Limited
Date: 02-2016
Publisher: Informa UK Limited
Date: 22-05-2017
Publisher: Politechnika Wroclawska Oficyna Wydawnicza
Date: 15-03-2020
DOI: 10.37190/PPMP/119016
Publisher: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Date: 2016
DOI: 10.5277/PPMP160127
Publisher: Elsevier BV
Date: 2020
Publisher: Elsevier BV
Date: 10-2016
Publisher: Inderscience Publishers
Date: 2021
Publisher: Springer Science and Business Media LLC
Date: 07-2016
Publisher: Elsevier BV
Date: 11-2020
Publisher: Informa UK Limited
Date: 17-05-2019
Publisher: MDPI AG
Date: 20-09-2023
DOI: 10.3390/MIN13091231
Publisher: MDPI AG
Date: 09-04-2023
DOI: 10.3390/SEPARATIONS10040246
Abstract: In this paper, mechanical stirring and ultrasonic treatment are used to separate graphite electrode materials from copper foils in recycling spent lithium-ion batteries (LIBs). Firstly, the effects of ultrasonic power (60–180 W), ultrasonic time (1–8 min), stirring speed (420–2000 rpm), and stirring time (1–8 min) on the abscission rate of active material on copper foil were studied. It was found that the peeling-off ratio of electrode material under ultrasonic treatment was 91.34% compared with stirring treatment (84.22%). The removal of electrode material from copper foil during stirring was mainly through mechanical scrubbing. As a comparison, the generation of the microjets induced by ultrasound, the local high-temperature and high-pressure environment, and the free radicals during ultrasonic treatment are the key factors to further improve electrode material removal efficiency. An integrated ultrasound-mechanical stirrer technique can achieve a high-efficient separation performance (approximately 100% peeling-off ratio) of anode electrode materials from copper foils. The effects of mechanical stirring speed, temperature, and treatment time on the peeling-off ratios of the ultrasound-mechanical stirrer-assisted system were investigated. Finally, the results of XRF (X-ray fluorescence spectrometer), XRD (X-ray diffraction), and SEM-EDS (scanning electron microscopy coupled with energy dispersive X-ray spectroscopy) showed that the as-separated graphite electrode material had high purity and contained almost no copper foil impurities. Numerical simulation analyses briefly showed that the difference between pressure and ultrasonic temperature changes in the boundary between different anode layers (graphite on copper foil in aqueous solution) was the main effective factor in the considerable separation of graphite from copper anode foil under ultrasonic-assisted delamination.
Publisher: Informa UK Limited
Date: 10-06-2021
Publisher: American Chemical Society (ACS)
Date: 02-06-2020
Publisher: Informa UK Limited
Date: 10-05-2022
Publisher: Elsevier BV
Date: 10-2018
Publisher: MDPI AG
Date: 16-11-2021
DOI: 10.3390/MIN11111271
Abstract: Conventional hydrocarbon oil cannot adhere effectively to oxidized coal, resulting in a low yield of clean coal. In this study, a high-speed homogenizer was used to emulsify LDD (laurylamine dipropylene diamine) and kerosene, which enhanced the flotation efficiency of oxidized coal. The flotation results showed an increase from 4.12% (only kerosene) to 23.33% (emulsified oil). An increase in contact angle indicated that the mixture reagent can increase the hydrophobicity of coal particles, which is attributed to the adsorption of LDD onto the coal particle surface and the decrease of the oil droplet A lower surface tension of LDD allows it to produce a stable layer of froth than the layer generated by kerosene alone.
Publisher: Elsevier BV
Date: 05-2023
Publisher: Informa UK Limited
Date: 09-2020
Publisher: Elsevier BV
Date: 2020
DOI: 10.1016/J.ULTSONCH.2019.104739
Abstract: Ultrasound technology is widely applied in the flotation process. From the perspective of the theory of ultrasound, this article explains the effects and applications of ultrasound in the flotation process. To obtain a clear understanding of ultrasonic effects, we observe the phenomena of ultrasound using a high-speed camera and a CCD camera, and investigate potential applications in flotation. From these different phenomena, the ultrasonic effects are classified into three types of effect: the transient cavitation effect, stable cavitation effect, and acoustic radiation force effect. Based on these effects, the applications of ultrasound to mineral flotation are reviewed, including slime coating removal, oxidation film removal, desulfuration, tiny bubble generation, flotation reagent dispersion, and aggregation. In addition, the ultrasonic equipment and treatment methods applied in flotation are classified and compared based on their characteristics. Finally, we propose some potential directions in the study of the stable cavitation effect and acoustic radiation force effect, which are important, but are seldom mentioned in previous reports.
Start Date: 2019
End Date: 2022
Funder: China Postdoctoral Science Foundation
View Funded Activity