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Preparation of Diesel Microemulsion and Its Mechanism in Graphite Flotation
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Junhui YAN1, Yangshuai QIU1, 2, 3, Lingyan ZHANG1, 2, 3, Yaxin AN1, Zijie REN1, 2, 3
Mining and Metallurgical Engineering | 2025, 45(2) : 90 - 96
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Mining and Metallurgical Engineering | 2025, 45(2): 90-96
• MINERAL PROCESSING •
Preparation of Diesel Microemulsion and Its Mechanism in Graphite Flotation
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Junhui YAN1, Yangshuai QIU1, 2, 3, Lingyan ZHANG1, 2, 3, Yaxin AN1, Zijie REN1, 2, 3
Affiliations
  • 1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
  • 2.Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan 430070, Hubei, China
  • 3.Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan 430070, Hubei, China
Published: 2025-04-01 doi: 10.3969/j.issn.0253-6099.2025.02.016
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Surfactants of Span80 and Tween80 were adopted to emulsify diesel in an experiment. Based on the studies on effects of diesel microemulsion on the concentrate recovery rate by graphite flotation and fuel-saving efficiency, the optimal conditions for preparing diesel microemulsion were determined as follows: emulsifier's hydrophilic-lipophilic balance (HLB) value of 9, n-butyl alcohol as a co-emulsifier, and emulsifier and co-emulsifier in a mass ratio of 2∶1. Under these conditions, the diesel microemulsion can be prepared with an average particle size of 78.82 nm and uniformly dispersed, presenting excellent stability. Flotation experiments showed that the usage of diesel microemulsion could save 28.66% of oil. And the mechanism of interaction between diesel microemulsion and graphite reveals that diesel microemulsion can significantly reduce the surface tension of the pulp, thus increasing the contact angle of graphite, leading to a higher flotation recovery rate compared to the adoption of conventional diesel.

graphite  /  diesel  /  microemulsion  /  emulsifier  /  collector  /  flake graphite  /  quasi-ternary phase diagram  /  flotation
Junhui YAN, Yangshuai QIU, Lingyan ZHANG, Yaxin AN, Zijie REN. Preparation of Diesel Microemulsion and Its Mechanism in Graphite Flotation[J]. Mining and Metallurgical Engineering, 2025 , 45 (2) : 90 -96 . DOI: 10.3969/j.issn.0253-6099.2025.02.016
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Year 2025 volume 45 Issue 2
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doi: 10.3969/j.issn.0253-6099.2025.02.016
  • Receive Date：2024-10-17
  • Online Date：2026-03-19
  • Published：2025-04-01
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  • Received：2024-10-17
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Affiliations
    1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
    2.Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan 430070, Hubei, China
    3.Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan 430070, Hubei, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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