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Selective Separation of Apatite from Carbonate Minerals with Sodium Humate as Depressant
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Jiangwei SONG1, 2, Rui CUI1, 2, Maolin LI1, 2, 3, Wei YAO1, 2
Mining and Metallurgical Engineering | 2025, 45(2) : 85 - 89
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Mining and Metallurgical Engineering | 2025, 45(2): 85-89
• MINERAL PROCESSING •
Selective Separation of Apatite from Carbonate Minerals with Sodium Humate as Depressant
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Jiangwei SONG1, 2, Rui CUI1, 2, Maolin LI1, 2, 3, Wei YAO1, 2
Affiliations
  • 1.College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
  • 2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgical Mineral Resources, Wuhan 430081, Hubei, China
  • 3.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
Published: 2025-04-01 doi: 10.3969/j.issn.0253-6099.2025.02.015
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The influence and reaction mechanism of sodium humate as a depressant on the flotation of apatite, dolomite and calcite in sodium oleate system were investigated by performing single-mineral flotation test, adsorption test, Zeta potential measurement, infrared spectroscopy analysis and X-ray photoelectron spectroscopy analysis. The results show that sodium humate can strongly depress dolomite and calcite at pH of 7, but has less effect on apatite flotation. Sodium humate is weakly adsorbed onto apatite, but it can be adsorbed onto dolomite via chemical bonding, and also adsorbed onto calcite by the combined effect of hydrogen bonding and chemisorption. As a result, the variation in adsorption of sodium humate onto apatite, dolomite and calcite leads to its selective depression of the latter two minerals.

apatite  /  dolomite  /  calcite  /  sodium humate  /  flotation  /  depressant  /  carbonate mineral  /  sodium oleate
Jiangwei SONG, Rui CUI, Maolin LI, Wei YAO. Selective Separation of Apatite from Carbonate Minerals with Sodium Humate as Depressant[J]. Mining and Metallurgical Engineering, 2025 , 45 (2) : 85 -89 . DOI: 10.3969/j.issn.0253-6099.2025.02.015
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doi: 10.3969/j.issn.0253-6099.2025.02.015
  • Receive Date：2024-11-08
  • Online Date：2026-03-19
  • Published：2025-04-01
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  • Received：2024-11-08
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Affiliations
    1.College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
    2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgical Mineral Resources, Wuhan 430081, Hubei, China
    3.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2025.02.015
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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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