Dr Xumeng Chen
Adjunct Research Fellow
School of Chemical Engineering
+61 7 334 69990
Researcher biography
Xumeng Chen is a Research Fellow at the University of Queensland. He obtained his PhD in JKMRC in 2015. His PhD studies focused on investigating effects of different regrinding conditions on cleaner flotation, including grinding media, particle breakage mechanism, ore mineralogy and content of sulphide gangues. Strategies were developed to optimise regrinding conditions, which have been successfully applied in the participating plant and improved Cu/Au flotation after regrinding pyrite concentrates. This project provided important guidance for the industry when commissioning and operating a regrind-cleaner flotation circuit. Since 2015, he has been working as a Research Fellow and has developed several technologies for the mineral and coal industry, including the management of clay minerals in flotation by applying novel reagents, the tuning of flotation reagents for oxidized coal flotation through online monitoring of surface oxidation, and improving flotation product dewatering through deaeration of tenacious forth. In 2017, he was awarded Advance Queensland Research Fellow by Queensland State Government to develop and implement new chemistries in flotation. He has also lead plant surveys and optimisations in more than 20 plants in base metal, precious metal and coal mines across Australia and South America. His current research focuses on ultrafine grinding and flotation, optimisation of plant pulp chemistry, flotation of low grade and oxidized ores, novel flotation reagents, online chemistry monitoring systems, and froth management.
Journal Articles
Zhang, Na and Chen, Xumeng (2023). The Influence of Kaolinite and Quartz on Stability of Coal Froths - A Rheology and Structure Study (vol 8, pg 33564, 2023). Acs Omega, 8 (45), 43356-43356. doi: 10.1021/acsomega.3c07634
Zhang, Na and Chen, Xumeng (2023). Correction to “The influence of kaolinite and quartz on stability of coal froths ─ a rheology and structure study”. ACS Omega, 8 (45), 43356-43356. doi: 10.1021/acsomega.3c07634
Zhang, Na and Chen, Xumeng (2023). The influence of kaolinite and quartz on stability of coal froths - a rheology and structure study. ACS Omega, 8 (37), 33564-33571. doi: 10.1021/acsomega.3c03647
Chen, Xumeng and Peng, Yongjun (2022). Physically emulsifying oily collectors to produce optimal droplet sizes for flotation. Minerals Engineering, 184 107641, 107641. doi: 10.1016/j.mineng.2022.107641
Chen, Xumeng, Shi, Zhiming and Peng, Yongjun (2022). The development of a novel type of microelectrodes to evaluate the reactivity of fine sulphide mineral particles. Minerals Engineering, 183 107595, 107595. doi: 10.1016/j.mineng.2022.107595
Lee, Richard Li Jie, Chen, Xumeng and Peng, Yongjun (2022). Flotation performance of chalcopyrite in the presence of an elevated pyrite proportion. Minerals Engineering, 177 107387, 107387. doi: 10.1016/j.mineng.2021.107387
Cao, Liang, Chen, Xumeng and Peng, Yongjun (2022). The interaction of frothers with hydrophobic and hydrophilic sites of coal particles in NaCl solution. Powder Technology, 396 (Part A), 378-384. doi: 10.1016/j.powtec.2021.11.011
Liu, Shiqi, Chen, Xumeng and Peng, Yongjun (2021). Destabilising persistent coal froth using silicone oil. International Journal of Mining Science and Technology, 31 (6), 1023-1031. doi: 10.1016/j.ijmst.2021.11.005
Liu, Shiqi, Chen, Xumeng and Peng, Yongjun (2021). Deaeration of stable coal froth by surfactants to modify the interfacial properties. Fuel, 298 120839, 120839. doi: 10.1016/j.fuel.2021.120839
Chen, Yang, Chen, Xumeng and Peng, Yongjun (2021). The depression of molybdenite flotation by sodium metabisulphite in fresh water and seawater. Minerals Engineering, 168 106939, 106939. doi: 10.1016/j.mineng.2021.106939
Cao, Liang, Chen, Xumeng and Peng, Yongjun (2021). The adsorption and orientation of frother surfactants on heterogeneous wetting surfaces. Applied Surface Science, 548 149225, 1-6. doi: 10.1016/j.apsusc.2021.149225
Cao, Liang, Chen, Xumeng and Peng, Yongjun (2021). The formation and stabilization of oily collector emulsions – a critical review. Mineral Processing and Extractive Metallurgy Review, 42 (6), 388-405. doi: 10.1080/08827508.2020.1776279
Chen, Yang, Chen, Xumeng and Peng, Yongjun (2020). The effect of sodium hydrosulfide on molybdenite flotation in seawater and diluted seawater. Minerals Engineering, 158 106589, 106589. doi: 10.1016/j.mineng.2020.106589
Cao, Liang, Chen, Xumeng and Peng, Yongjun (2020). The effect of polyglycol-type frothers on the interfacial characteristics of oily collector dispersion. Minerals Engineering, 157 106579, 1-7. doi: 10.1016/j.mineng.2020.106579
Cao, Liang, Chen, Xumeng and Peng, Yongjun (2020). The effect of aliphatic alcohol frothers on the dispersion of oily collector. Minerals Engineering, 157 106552, 1-7. doi: 10.1016/j.mineng.2020.106552
Zhang, Na, Chen, Xumeng and Peng, Yongjun (2020). Effects of froth properties on dewatering of flotation products– A critical review. Minerals Engineering, 155 106477, 106477. doi: 10.1016/j.mineng.2020.106477
Zhang, Na, Chen, Xumeng and Peng, Yonjung (2020). The interaction between kaolinite and saline water in affecting the microstructure, rheology and settling of coal flotation products. Powder Technology, 372, 76-83. doi: 10.1016/j.powtec.2020.05.096
Chen, Yang, Chen, Xumeng and Peng, Yongjun (2020). The effect of sodium hydrosulfide on molybdenite flotation as a depressant of copper sulfides. Minerals Engineering, 148 106203, 106203. doi: 10.1016/j.mineng.2020.106203
Chen, Xumeng, Liu, Sunfangze and Peng, Yongjun (2020). A new approach to selectively reject naturally hydrophobic gangue in the flotation of base metal sulphide minerals. Mining, Metallurgy and Exploration, 38 (2), 713-720. doi: 10.1007/s42461-020-00365-9
Zhang, Na, Chen, Xumeng, Nicholson, Timothy and Peng, Yongjun (2019). The effect of saline water on the settling of coal slurry and coal froth. Powder Technology, 344, 161-168. doi: 10.1016/j.powtec.2018.12.036
Chang, Ziyong, Chen, Xumeng and Peng, Yongjun (2019). The interaction between diesel and surfactant Triton X-100 and their adsorption on coal surfaces with different degrees of oxidation. Powder Technology, 342, 840-847. doi: 10.1016/j.powtec.2018.10.047
Liu, Shiqi, Chen, Xumeng, Lauten, Rolf A., Peng, Yongjun and Liu, Qi (2018). Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer. Minerals Engineering, 126, 9-15. doi: 10.1016/j.mineng.2018.06.021
Zhang, Na, Chen, Xumeng, Nicholson, Timothy and Peng, Yongjun (2018). The effect of froth on the dewatering of coals – an oscillatory rheology study. Fuel, 222, 362-369. doi: 10.1016/j.fuel.2018.02.168
Cao, Zhao, Chen, Xumeng and Peng, Yongjun (2018). The role of sodium sulfide in the flotation of pyrite depressed in chalcopyrite flotation. Minerals Engineering, 119, 93-98. doi: 10.1016/j.mineng.2018.01.029
Chang, Ziyong, Chen, Xumeng and Peng, Yongjun (2018). The effect of saline water on the critical degree of coal surface oxidation for coal flotation. Minerals Engineering, 119, 222-227. doi: 10.1016/j.mineng.2018.01.020
Chen, Xumeng and Peng, Yongjun (2018). Managing clay minerals in froth flotation—a critical review. Mineral Processing and Extractive Metallurgy Review, 39 (5), 1-19. doi: 10.1080/08827508.2018.1433175
Chang, Ziyong, Chen, Xumeng and Peng, Yongjun (2018). The adsorption behavior of surfactants on mineral surfaces in the presence of electrolytes - A critical review. Minerals Engineering, 121, 66-76. doi: 10.1016/j.mineng.2018.03.002
Chang, Ziyong, Chen, Xumeng and Peng, Yongjun (2017). Understanding and improving the flotation of coals with different degrees of surface oxidation. Powder Technology, 321, 190-196. doi: 10.1016/j.powtec.2017.08.025
Chen, Xumeng, Hadde, Enrico, Liu, Shiqi and Peng, Yongjun (2017). The effect of amorphous silica on pulp rheology and copper flotation. Minerals Engineering, 113, 41-46. doi: 10.1016/j.mineng.2017.08.001
Chen, Xumeng, Chang, Ziyong and Peng, Yongjun (2017). Predicting the degree of surface oxidation on fine coals by measuring the oxygen transfer rate in coal suspensions. Fuel Processing Technology, 159, 313-319. doi: 10.1016/j.fuproc.2017.01.044
Jin, Junxun, Gao, Huimin, Chen, Xumeng, Peng, Yongjun and Min, Fanfei (2016). The flotation of aluminosilicate polymorphic minerals with anionic and cationic collectors. Minerals Engineering, 99, 123-132. doi: 10.1016/j.mineng.2016.08.005
Jin, Junxun, Gao, Huimin, Chen, Xumeng and Peng, Yongjun (2016). The separation of kyanite from quartz by flotation at acidic pH. Minerals Engineering, 92, 221-228. doi: 10.1016/j.mineng.2016.03.022
Chen, Xumeng and Peng, Yongjun (2015). The effect of regrind mills on the separation of chalcopyrite from pyrite in cleaner flotation. Minerals Engineering, 83, 33-43. doi: 10.1016/j.mineng.2015.08.008
Chen, Xumeng, Seaman, David, Peng, Yongjun and Bradshaw, Dee (2014). Importance of oxidation during regrinding of rougher flotation concentrates with a high content of sulfides. Minerals Engineering, 66 (7), 165-172. doi: 10.1016/j.mineng.2014.04.014
Chen, Xumeng, Peng, Yongjun and Bradshaw, Dee (2014). The separation of chalcopyrite and chalcocite from pyrite in cleaner flotation after regrinding. Minerals Engineering, 58 (1-4), 64-72. doi: 10.1016/j.mineng.2014.01.010
Chen, Xumeng, Peng, Yongjun and Bradshaw, Dee (2014). The effect of particle breakage mechanisms during regrinding on the subsequent cleaner flotation. Minerals Engineering, 66, 157-164. doi: 10.1016/j.mineng.2014.04.020
Chen, Xumeng, Peng, Yongjun and Bradshaw, Dee (2013). Effect of regrinding conditions on pyrite flotation in the presence of copper ions. International Journal of Mineral Processing, 125, 129-136. doi: 10.1016/j.minpro.2013.08.007
Chen, Xumeng, Lu, Xuemin, Cui, Kun, Cui, Wei, Wu, Jun and Lu, Qinghua (2011). Precipitation supramolecular complex for photoinduced anisotropic material with dual mesogenic units. Polymer, 52 (14), 3243-3250. doi: 10.1016/j.polymer.2011.02.023
Cui, Kun, Lu, Xuemin, Cui, Wei, Wu, Jun, Chen, Xumeng and Lu, Qinghua (2011). Fluorescent nanoparticles assembled from poly(ionic liquid) for selective sensing of copper ions. Chemical Communications, 47 (3), 920-922. doi: 10.1039/c0cc03900d
Lu, Xuemin, Xiao, Sufang, Chen, Xumeng and Lu, Qinghua (2011). A photosensitive fluorinated ionic complex with tunable surface wetting properties: Mesostructure and photosensitivity. Polymer Chemistry, 2 (11), 2528-2535. doi: 10.1039/c1py00236h
Xumeng, Chen, Xuemin, Lu and Qinghua, Lu (2010). Application of ionic self-assembly in preparation of azobenzene photoresposive materials. Progress in Chemistry, 22 (6), 1125-1132.
Conference Papers
Chen, Xumeng, Peng, Yongjun and Bradshaw, Dee (2014). Effect of regrinding conditions on the flotation of sulphide minerals in the cleaner stage. XXVII International Mineral Processing Congress -IMPC 2014, Santiago, Chile, 20-24 October 2014. Santiago, Chile: Gecamin Digital Publications.
Chen, X., Bradshaw, D. and Peng, Y. (2013). Effect of particle breakage mechanisms during regrinding on surface chemistry and mineral flotation. Flotation'13: The 6th International Flotation Conference, Cape Town, South Africa, 18-21 November, 2013.
Chen, X., Bradshaw, D., Seaman, D. and Peng, Y. (2013). Importance of oxidation during regrinding of rougher concentrate with a high content of sulphides. Flotation'13: The 6th International Flotation Conference, Cape Town, South Africa, 18-21 November, 2013.
Chen, Xumeng, Peng, Yongjun and Bradshaw, Dee J. (2012). Effect of regrinding conditions on the rejection of pyrite in the cleaner stage. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, 24-28 September 2012. New Delhi, India: Technowrites.
Peng, Y., Liu, D. and Chen, X. (2012). Selective flotation of ultrafine nickel sulphide from serpentine in saline water by pluronic triblock copolymer. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, 24-28 September 2012. New Delhi, India: International Mineral Processing Congress.
Chen, X., Peng, Y. and Bradshaw, D. J. (2012). Effect of regrinding conditions on the flotation of chalcopyrite and its separation from pyrite in the cleaner stage. 11th AusIMM Mill Operators' Conference 2012, Hobart, Tasmania, 29-31 October 2012. Carlton, Victoria: AusIMM: Australasian Institute of Mining and Metallurgy.
Thesis
Chen, Xumeng (2015). The effect of regrinding chemistry and particle breakage mechanisms on subsequent cleaner flotation. PhD Thesis, Sustainable Minerals Institute, The University of Queensland. doi: 10.14264/uql.2015.632