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Extraction of Rhenium from Low Grade Molybdenum Concentrate by Oxidative Volatilization and Ion Exchange Process
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Guojing WANG1, 2, Min GAN2, Xiaohui FAN2, Xuling CHEN2, Kang HUANG2, Haibo WANG2
Mining and Metallurgical Engineering | 2025, 45(5) : 148 - 153
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Mining and Metallurgical Engineering | 2025, 45(5): 148-153
• METALLURGY •
Extraction of Rhenium from Low Grade Molybdenum Concentrate by Oxidative Volatilization and Ion Exchange Process
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Guojing WANG1, 2, Min GAN2, Xiaohui FAN2, Xuling CHEN2, Kang HUANG2, Haibo WANG2
Affiliations
  • 1.Hubei Three Gorges Laboratory, Yichang 443007, Hubei, China
  • 2.School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
Published: 2025-10-01 doi: 10.3969/j.issn.0253-6099.2025.05.026
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Extraction of rhenium from low-grade molybdenum concentrate by adopting a process of oxidative volatilization followed by ion exchange was explored in experiments. Firstly, a two-stage high-temperature oxidative roasting was adopted to oxidize rhenium into Re2O7. Rhenium and molybdenum were effectively separated due to rhenium volatilizing into the flue gas. The volatilization rate of rhenium reached 85.42% after roasting process at 675 ℃. Then, the rhenium-containing flue gas was eluted to get rhenium-containing solution, in which rhenium was selectively extracted with D201×7 ion exchange resin. With the solution pH of 9, liquid/solid ratio of 50 mL/g, a 20 min adsorption at temperature of 35 ℃ brought the adsorption rate of Re up to 97.52% and the adsorption rate of Mo less than 20%. Finally, a product of ammonium rhenate was prepared by stepwise desorption followed by concentration and crystallization. By this process, the total recovery of Re can reach 70.68%.

molybdenum concentrate  /  rhenium  /  oxidative roasting  /  elution  /  ion exchange  /  ion exchange resin  /  flue gas  /  oxidative volatilization  /  desorption
Guojing WANG, Min GAN, Xiaohui FAN, Xuling CHEN, Kang HUANG, Haibo WANG. Extraction of Rhenium from Low Grade Molybdenum Concentrate by Oxidative Volatilization and Ion Exchange Process[J]. Mining and Metallurgical Engineering, 2025 , 45 (5) : 148 -153 . DOI: 10.3969/j.issn.0253-6099.2025.05.026
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Year 2025 volume 45 Issue 5
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.05.026
  • Receive Date：2025-04-20
  • Online Date：2026-03-18
  • Published：2025-10-01
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  • Received：2025-04-20
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    1.Hubei Three Gorges Laboratory, Yichang 443007, Hubei, China
    2.School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, 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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