Application and depression mechanism of sodium humate on flotation separation of molybdenite and pyrite
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作者:
Lin, Xiang
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Cent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
Cent South Univ, Key Lab Hunan Prov Clean & Efficient Utilizat Stra, Changsha, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
Lin, Xiang
[1
,2
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Jiao, Fen
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Cent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
Cent South Univ, Key Lab Hunan Prov Clean & Efficient Utilizat Stra, Changsha, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
Jiao, Fen
[1
,2
]
Wei, Qian
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Cent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
Cent South Univ, Key Lab Hunan Prov Clean & Efficient Utilizat Stra, Changsha, Peoples R China
Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
Wei, Qian
[1
,2
,3
]
Wu, Yitong
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Cent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
Cent South Univ, Key Lab Hunan Prov Clean & Efficient Utilizat Stra, Changsha, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
Wu, Yitong
[1
,2
]
机构:
[1] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha, Peoples R China
[2] Cent South Univ, Key Lab Hunan Prov Clean & Efficient Utilizat Stra, Changsha, Peoples R China
[3] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
The depression of pyrite in the flotation separation of molybdenum-sulfur (Mo-S) mixed concentrate has become a significant issue. This study aimed to examine the process of separating molybdenite and pyrite in the presence of sodium humate (NaHA). The results of micro-flotation tests indicated that NaHA exhibited significant pyrite depression capabilities and displayed remarkable selectivity toward both pyrite and molybdenite. Real ore flotation experiments have shown that adding 22.5 mg/L of NaHA to the pulp of Mo-S mixed concentrate at a pH of 6.5, the flotation indexes achieved 46.01% Mo grade and 90.11% Mo recovery. It is noteworthy that the dosage of NaHA was significantly lower compared to the 505 utilized in the mineral processing plant. Contact angle measurements revealed that NaHA effectively increased the surface hydrophilicity of pyrite. Adsorption amount measurements, zeta potential measurements, and Fourier infrared spectroscopic (FT-IR) analysis indicated that the adsorption capacity of NaHA on pyrite was higher than on molybdenite. NaHA had a highly selective inhibitory capacity for Mo-S mixed concentrate and is an ideal separation depressant.
机构:
Inner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R China
Guangdong Inst Resources Comprehens Utilizat, Guangzhou 510650, Peoples R China
State Key Lab Rare Met Separat & Comprehens Utili, Guangzhou 510650, Peoples R ChinaInner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R China
Cao, Zhao
Wang, Peng
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Inner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R ChinaInner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R China
Wang, Peng
Zhang, Wen-bo
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Inner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R ChinaInner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R China
Zhang, Wen-bo
Zeng, Xiao-bo
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Chinese Acad Geol Sci, Inst Multipurpose Utilizat Mineral Resources, Chengdu 610041, Peoples R ChinaInner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R China
Zeng, Xiao-bo
Cao, Yong-dan
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Inner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R ChinaInner Mongolia Univ Sci & Technol, Inst Min Engn, Baotou 014010, Peoples R China
机构:
Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Cent South Univ, Minist Educ Carbon Emiss Reduct Met Resource Explo, Engn Res Ctr, Changsha 410083, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Huang, Wei-Xin
Tang, Hong-Hu
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Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Cent South Univ, Minist Educ Carbon Emiss Reduct Met Resource Explo, Engn Res Ctr, Changsha 410083, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Tang, Hong-Hu
Cao, Yang
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Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Cent South Univ, Minist Educ Carbon Emiss Reduct Met Resource Explo, Engn Res Ctr, Changsha 410083, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Cao, Yang
Liu, Ruo-Hua
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Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Cent South Univ, Minist Educ Carbon Emiss Reduct Met Resource Explo, Engn Res Ctr, Changsha 410083, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Liu, Ruo-Hua
Sun, Wei
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机构:
Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
Cent South Univ, Minist Educ Carbon Emiss Reduct Met Resource Explo, Engn Res Ctr, Changsha 410083, Peoples R ChinaCent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
机构:
School of Chemical Engineering, Zhengzhou UniversitySchool of Chemical Engineering, Zhengzhou University
Mengyao Qi
Weijun Peng
论文数: 0引用数: 0
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机构:
School of Chemical Engineering, Zhengzhou University
Zhongyuan Critical Metals Laboratory, Zhengzhou University
The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry ofSchool of Chemical Engineering, Zhengzhou University
Weijun Peng
Wei Wang
论文数: 0引用数: 0
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机构:
School of Chemical Engineering, Zhengzhou University
Zhongyuan Critical Metals Laboratory, Zhengzhou University
The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry ofSchool of Chemical Engineering, Zhengzhou University
Wei Wang
Yijun Cao
论文数: 0引用数: 0
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机构:
School of Chemical Engineering, Zhengzhou University
Zhongyuan Critical Metals Laboratory, Zhengzhou University
The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry ofSchool of Chemical Engineering, Zhengzhou University
Yijun Cao
Longyu Zhang
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机构:
School of Chemical Engineering, Zhengzhou UniversitySchool of Chemical Engineering, Zhengzhou University
Longyu Zhang
Yukun Huang
论文数: 0引用数: 0
h-index: 0
机构:
School of Chemical Engineering, Zhengzhou University
Zhongyuan Critical Metals Laboratory, Zhengzhou University
The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry ofSchool of Chemical Engineering, Zhengzhou University