Experimental Study on Flotation of a Micro-fine Arsenopyrite-type Gold Ore in Central Asia
Against the backdrop of increasing global gold demand and the depletion of easily treatable gold resources, the development of refractory gold ores has become increasingly important. A gold deposit in Central Asia, characterized by large reserves, low sulfur, high arsenic, and low-grade refractory g...
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| Format: | Article |
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Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences
2025-08-01
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| Series: | Kuangchan zonghe liyong |
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| Online Access: | http://www.kczhly.com/en/article/doi/10.12476/kczhly.202505070074 |
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| author | Wenpu ZHANG Xiaohui WANG Weilong WU Kunxi HUANG Kaile ZHAO Zhen WANG |
| author_facet | Wenpu ZHANG Xiaohui WANG Weilong WU Kunxi HUANG Kaile ZHAO Zhen WANG |
| author_sort | Wenpu ZHANG |
| collection | DOAJ |
| description | Against the backdrop of increasing global gold demand and the depletion of easily treatable gold resources, the development of refractory gold ores has become increasingly important. A gold deposit in Central Asia, characterized by large reserves, low sulfur, high arsenic, and low-grade refractory gold ore, with an Au grade of 1.53 g/t and ultra-fine gold dissemination (over 60% of particles smaller than 0.01 mm), was studied. Comparative beneficiation tests showed that the single flotation process outperformed the combined shaking table-flotation process. The closed-circuit flotation test employed a short-flow process of "one roughing, one scavenging, and two cleaning" stages, in combination with the addition of a novel organic composite depressant EMY-515 and a new composite collector EMB-906. This resulted in a gold concentrate with an Au grade of 40.20 g/t and a recovery rate of 76.44%, while the Au content in the tailings was reduced to 0.37 g/t. This study provides a feasible solution for the development of this type of gold ores and offers technical support for the efficient exploitation and utilization of gold resources in countries along the "Belt and Road" initiative. |
| format | Article |
| id | doaj-art-c36194d72d2147caa59c6ebf92c5291c |
| institution | Kabale University |
| issn | 1000-6532 |
| language | zho |
| publishDate | 2025-08-01 |
| publisher | Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences |
| record_format | Article |
| series | Kuangchan zonghe liyong |
| spelling | doaj-art-c36194d72d2147caa59c6ebf92c5291c2025-08-25T08:13:18ZzhoInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological SciencesKuangchan zonghe liyong1000-65322025-08-0146410010810.12476/kczhly.2025050700742025-04zhangwenpuExperimental Study on Flotation of a Micro-fine Arsenopyrite-type Gold Ore in Central AsiaWenpu ZHANG0Xiaohui WANG1Weilong WU2Kunxi HUANG3Kaile ZHAO4Zhen WANG5Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Technology Innovation Center for Comprehensive Utilization of Strategic Mineral Resources, Ministry of Natural Resources, Chengdu , Sichuan 610041, ChinaInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Technology Innovation Center for Comprehensive Utilization of Strategic Mineral Resources, Ministry of Natural Resources, Chengdu , Sichuan 610041, ChinaInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Technology Innovation Center for Comprehensive Utilization of Strategic Mineral Resources, Ministry of Natural Resources, Chengdu , Sichuan 610041, ChinaInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Technology Innovation Center for Comprehensive Utilization of Strategic Mineral Resources, Ministry of Natural Resources, Chengdu , Sichuan 610041, ChinaInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Technology Innovation Center for Comprehensive Utilization of Strategic Mineral Resources, Ministry of Natural Resources, Chengdu , Sichuan 610041, ChinaSouthwest University of Science and Technology, Mianyang , Sichuan 621000, ChinaAgainst the backdrop of increasing global gold demand and the depletion of easily treatable gold resources, the development of refractory gold ores has become increasingly important. A gold deposit in Central Asia, characterized by large reserves, low sulfur, high arsenic, and low-grade refractory gold ore, with an Au grade of 1.53 g/t and ultra-fine gold dissemination (over 60% of particles smaller than 0.01 mm), was studied. Comparative beneficiation tests showed that the single flotation process outperformed the combined shaking table-flotation process. The closed-circuit flotation test employed a short-flow process of "one roughing, one scavenging, and two cleaning" stages, in combination with the addition of a novel organic composite depressant EMY-515 and a new composite collector EMB-906. This resulted in a gold concentrate with an Au grade of 40.20 g/t and a recovery rate of 76.44%, while the Au content in the tailings was reduced to 0.37 g/t. This study provides a feasible solution for the development of this type of gold ores and offers technical support for the efficient exploitation and utilization of gold resources in countries along the "Belt and Road" initiative.http://www.kczhly.com/en/article/doi/10.12476/kczhly.202505070074central asiafine-grained arsenopyrite-type gold oreprocess mineralogyflotation testreagent systemgold recovery rate |
| spellingShingle | Wenpu ZHANG Xiaohui WANG Weilong WU Kunxi HUANG Kaile ZHAO Zhen WANG Experimental Study on Flotation of a Micro-fine Arsenopyrite-type Gold Ore in Central Asia Kuangchan zonghe liyong central asia fine-grained arsenopyrite-type gold ore process mineralogy flotation test reagent system gold recovery rate |
| title | Experimental Study on Flotation of a Micro-fine Arsenopyrite-type Gold Ore in Central Asia |
| title_full | Experimental Study on Flotation of a Micro-fine Arsenopyrite-type Gold Ore in Central Asia |
| title_fullStr | Experimental Study on Flotation of a Micro-fine Arsenopyrite-type Gold Ore in Central Asia |
| title_full_unstemmed | Experimental Study on Flotation of a Micro-fine Arsenopyrite-type Gold Ore in Central Asia |
| title_short | Experimental Study on Flotation of a Micro-fine Arsenopyrite-type Gold Ore in Central Asia |
| title_sort | experimental study on flotation of a micro fine arsenopyrite type gold ore in central asia |
| topic | central asia fine-grained arsenopyrite-type gold ore process mineralogy flotation test reagent system gold recovery rate |
| url | http://www.kczhly.com/en/article/doi/10.12476/kczhly.202505070074 |
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