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Kinetics and Thermodynamics of Oleate Ion Adsorption on Fluorapatite and Dolomite
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Jingqi ZHANG1, Qin ZHANG2, 3, 4, Song MAO1, 3, 4
Mining and Metallurgical Engineering | 2024, 44(1) : 60 - 67
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Mining and Metallurgical Engineering | 2024, 44(1): 60-67
• MINERAL PROCESSING •
Kinetics and Thermodynamics of Oleate Ion Adsorption on Fluorapatite and Dolomite
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Jingqi ZHANG1, Qin ZHANG2, 3, 4, Song MAO1, 3, 4
Affiliations
  • 1.Mining College, Guizhou University, Guiyang 550025, Guizhou, China
  • 2.Guizhou Academy of Sciences, Guiyang 550001, Guizhou, China
  • 3.National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang 550025, Guizhou, China
  • 4.Guizhou Key Lab of Comprehensive Utilization of Nonmetallic Mineral Resources, Guiyang 550025, Guizhou, China
Published: 2024-02-01 doi: 10.3969/j.issn.0253-6099.2024.01.014
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The kinetics and thermodynamics of oleate ion adsorption on the surface of fluorapatite and dolomite were studied by adopting TOC measurement and molecular simulation. The study on kinetics of adsorption shows that with HEDP as the depressant, the adsorption rate of oleate ions on fluorapatite is greater than on dolomite, and the adsorption on both minerals conforms to the quasi-second-order kinetic model. Furthermore, according to the study on adsorption thermodynamics, the characteristics of oleate ion adsorption on the inner pore surface of both fluorapatite and dolomite, on (001) surface of fluorapatite and (104) surface of dolomite nearly conform to Langmuir model. For identical specific surface area, the adsorption amount of oleate ions on dolomite is higher than that on fluorapatite, indicating that there are more active sites per unit surface area on dolomite than on fluorapatite.

fluorapatite  /  dolomite  /  adsorption kinetics  /  adsorption thermodynamics  /  porosity
Jingqi ZHANG, Qin ZHANG, Song MAO. Kinetics and Thermodynamics of Oleate Ion Adsorption on Fluorapatite and Dolomite[J]. Mining and Metallurgical Engineering, 2024 , 44 (1) : 60 -67 . DOI: 10.3969/j.issn.0253-6099.2024.01.014
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doi: 10.3969/j.issn.0253-6099.2024.01.014
  • Receive Date：2023-09-10
  • Online Date：2026-03-20
  • Published：2024-02-01
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  • Received：2023-09-10
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Affiliations
    1.Mining College, Guizhou University, Guiyang 550025, Guizhou, China
    2.Guizhou Academy of Sciences, Guiyang 550001, Guizhou, China
    3.National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang 550025, Guizhou, China
    4.Guizhou Key Lab of Comprehensive Utilization of Nonmetallic Mineral Resources, Guiyang 550025, Guizhou, 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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