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Effect of Grinding Aids on Grinding Kinetics of Molybdenum Ore
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Fuchao SHI1, Yarong DING2, 3, Rongjian CHEN1, Xueyan SONG4, Congren YANG3, Pengfei BAI2, 3, Kunlin MA2, 3
Mining and Metallurgical Engineering | 2025, 45(2) : 80 - 84
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Mining and Metallurgical Engineering | 2025, 45(2): 80-84
• MINERAL PROCESSING •
Effect of Grinding Aids on Grinding Kinetics of Molybdenum Ore
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Fuchao SHI1, Yarong DING2, 3, Rongjian CHEN1, Xueyan SONG4, Congren YANG3, Pengfei BAI2, 3, Kunlin MA2, 3
Affiliations
  • 1.Yichun Luming Mining Co., Ltd., Yichun 153000, Heilongjiang, China
  • 2.School of Civil Engineering, Central South University, Changsha 410075, Hunan, China
  • 3.School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
  • 4.Shanghai Pudong Architectural Design Research Institute Co. Ltd., Shanghai 201206, China
Published: 2025-04-01 doi: 10.3969/j.issn.0253-6099.2025.02.014
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As for the molybdenum ores from Yichun Luming Mine, an m-order grinding kinetics model was used to explore the effects of four grinding aids, such as triethanolamine (TEA), triisopropanolamine (TIPA), polyacrylic acid (PAA) and polycarboxylic ether (PCE), on grinding kinetics of molybdenum ores. The results show that before addition of grinding aids, the proportion of the milled product in the size range of -0.074 mm increases significantly with the increase of the medium charge ratio, and the grinding kinetic parameters of m and k all increase; with the same medium charge ratio, the parameter of m increases and the parameter of k decreases as the grain size of milled product decreases. Comparatively, as for the samples milled with grinding aids of TEA, TIPA, PAA and PCE, the milling products in the size range of -0.074 mm increase by 6.19, 2.40, 3.62 and 1.89 percentage points, respectively. Compared to the system without grinding aids, an addition of TEA can lead to higher values of parameters of k and m, and larger particle size can result in great decline in the k value, while small particle size can bring a gentle k-grain curve, indicating the k value plays a dominant role at the initial grinding stage. After addition of grinding aids, the grains present improved dispersibility with significantly less agglomeration.

grinding  /  molybdenum ore  /  grinding aid  /  grinding kinetics  /  surface morphology  /  efficiency of grinding  /  grinding media  /  medium charge ratio
Fuchao SHI, Yarong DING, Rongjian CHEN, Xueyan SONG, Congren YANG, Pengfei BAI, Kunlin MA. Effect of Grinding Aids on Grinding Kinetics of Molybdenum Ore[J]. Mining and Metallurgical Engineering, 2025 , 45 (2) : 80 -84 . DOI: 10.3969/j.issn.0253-6099.2025.02.014
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Year 2025 volume 45 Issue 2
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.02.014
  • Receive Date：2024-10-13
  • Online Date：2026-03-19
  • Published：2025-04-01
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  • Received：2024-10-13
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Affiliations
    1.Yichun Luming Mining Co., Ltd., Yichun 153000, Heilongjiang, China
    2.School of Civil Engineering, Central South University, Changsha 410075, Hunan, China
    3.School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
    4.Shanghai Pudong Architectural Design Research Institute Co. Ltd., Shanghai 201206, 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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