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Experimental Study on Recovery of Associated Gold from Copper Sulfide Ore by Flash Flotation
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Fuya ZHANG1, Yan CHEN2, Tao SHEN2, Yuejun ZHANG1, Jianhang ZHOU1
Mining and Metallurgical Engineering | 2025, 45(5) : 73 - 76
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Mining and Metallurgical Engineering | 2025, 45(5): 73-76
• MINERAL PROCESSING •
Experimental Study on Recovery of Associated Gold from Copper Sulfide Ore by Flash Flotation
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Fuya ZHANG1, Yan CHEN2, Tao SHEN2, Yuejun ZHANG1, Jianhang ZHOU1
Affiliations
  • 1.BGRIMM Machinery & Automation Technology Co., Ltd., Beijing 100160, China
  • 2.Yinshan Mine Co., Ltd., Jiangxi Copper Corporation Limited, Dexing 334200, Jiangxi, China
Published: 2025-10-01 doi: 10.3969/j.issn.0253-6099.2025.05.012
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With a copper sulfide ore from Jiangxi Province taken in the research, an experimental study was carried out for enhancing the recovery of associated Au by flash flotation. In a laboratory test, the underflow of secondary-stage classification was subjected to an open-circuit flash flotation consisting of two-stage roughing and two-stage scavenging, leading to the Au grade up from 16.60 g/t to 140.60 g/t, presenting good floatability. Additionally, the Cu grade in the concentrate from flash flotation cell is higher than that in the main process, which proves that flash flotation of classification underflow will not affect the Cu recovery from the main process. Industrial practice demonstrates that with the ores of different Au grade, the Au recovery rate has increased after technical transformation. A size analysis by sieving reveals that those fully liberated minerals within conventional size fraction in classification underflow can be mainly recovered by flash flotation, thus being prevented from overgrinding due to returning to the grinding mill.

gold ore  /  flash flotation  /  grade  /  classification  /  recovery  /  overgrinding  /  liberation  /  copper sulfide ore  /  associated Au
Fuya ZHANG, Yan CHEN, Tao SHEN, Yuejun ZHANG, Jianhang ZHOU. Experimental Study on Recovery of Associated Gold from Copper Sulfide Ore by Flash Flotation[J]. Mining and Metallurgical Engineering, 2025 , 45 (5) : 73 -76 . DOI: 10.3969/j.issn.0253-6099.2025.05.012
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doi: 10.3969/j.issn.0253-6099.2025.05.012
  • Receive Date：2025-04-08
  • Online Date：2026-03-18
  • Published：2025-10-01
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  • Received：2025-04-08
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    1.BGRIMM Machinery & Automation Technology Co., Ltd., Beijing 100160, China
    2.Yinshan Mine Co., Ltd., Jiangxi Copper Corporation Limited, Dexing 334200, Jiangxi, 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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