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Beneficiation Experimental Research and Industrial Application of a Silver-Lead Polymetallic Ore in Henan Province
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Jingmin SUN1, Ning YANG2, Yehao HUANG3, Cuifen LI1
Mining and Metallurgical Engineering | 2026, 46(3) : 165 - 169
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Mining and Metallurgical Engineering | 2026, 46(3): 165-169
• MINERAL PROCESSING •
Beneficiation Experimental Research and Industrial Application of a Silver-Lead Polymetallic Ore in Henan Province
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Jingmin SUN1, Ning YANG2, Yehao HUANG3, Cuifen LI1
Affiliations
  • 1.Geological Disaster Prevention Center of Henan Geological Bureau, Zhengzhou 450012, Henan, China
  • 2.Luoyang Kunyu Mining Co., Ltd., Luoyang 471000, Henan, China
  • 3.Ultrapure Minerals and New Materials Industrial Technology Research Institute, Zhengzhou 450016, Henan, China
doi: 10.3969/j.issn.0253-6099.2026.03.023
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To enhance the economic benefits of a silver-lead polymetallic ore concentrator in Henan Province, a systematic study was conducted on flotation process optimization and reagent system innovation based on the analysis of silver occurrence state and the paragenetic relationship among carrier minerals through process mineralogy. The research outcomes demonstrate that by implementing a process flow consisting of two roughers, three cleaners and three scavengers, and substituting the conventional sodium sulfide with a composite depressant system consisting of sodium silicate and CMC (carboxymethyl cellulose), the industrial production operates stably and continuously. As a result, the quality of lead concentrate is significantly improved, and the pricing coefficients of associated metallic elements are also enhanced simultaneously. The lead concentrate is obtained with Ag grade of 14 876.15 g/t at recovery of 87.77%, and Pb grade of 15.28% at recovery of 73.34%. Compared to the original reagent system, the Ag grade of the concentrate increases by about 4 923 g/t, while the recovery decreased slightly by 0.80 percentage points. The Pb grade of the concentrate increases by 5.05 percentage points and the corresponding recovery increases by 1.93 percentage points.

silver-lead polymetallic ore  /  flotation  /  depressant  /  pricing coefficient  /  lead concentrate  /  silver
孙景敏, 杨宁, 黄业豪, 李翠芬. 河南某银铅多金属矿选矿试验研究及工业应用. 矿冶工程杂志, 2026 , 46 (3) : 165 -169 . DOI: 10.3969/j.issn.0253-6099.2026.03.023
Jingmin SUN, Ning YANG, Yehao HUANG, Cuifen LI. Beneficiation Experimental Research and Industrial Application of a Silver-Lead Polymetallic Ore in Henan Province[J]. Mining and Metallurgical Engineering, 2026 , 46 (3) : 165 -169 . DOI: 10.3969/j.issn.0253-6099.2026.03.023
Appendix
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Year 2026 volume 46 Issue 3
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doi: 10.3969/j.issn.0253-6099.2026.03.023
  • Receive Date：2025-12-10
  • Online Date：2026-10-08
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  • Received：2025-12-10
Affiliations
    1.Geological Disaster Prevention Center of Henan Geological Bureau, Zhengzhou 450012, Henan, China
    2.Luoyang Kunyu Mining Co., Ltd., Luoyang 471000, Henan, China
    3.Ultrapure Minerals and New Materials Industrial Technology Research Institute, Zhengzhou 450016, Henan, 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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