Mineral processing mineralogy characteristics and beneficiation experiments of a lead-zinc mine in Inner Mongolia
Received:November 12, 2023   Revised:December 01, 2023   Accepted:December 12, 2023      Published Online:March 24, 2025
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KeyWord:lead-zinc sulfide ore; process mineralogy; flotation
                    
AuthorInstitution
Su Fengbo Chifeng NFC Baiyinnuoer Mining Co,Ltd
Xu Hongtu Chifeng NFC Baiyinnuoer Mining Co,Ltd
Li Min Chifeng NFC Baiyinnuoer Mining Co,Ltd
Li Yanqiu Chifeng NFC Baiyinnuoer Mining Co,Ltd
Xie Xian School of Land and Resources Engineering,Kunming University of Science and Technology
Chen Tao School of Land and Resources Engineering,Kunming University of Science and Technology
Zhang Shouxun School of Land and Resources Engineering,Kunming University of Science and Technology
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Abstract:
      In order to efficiently utilize the resources of a lead-zinc ore in Inner Mongolia, the relevant flotation experiments were carried out on the ore based on the results of process mineralogy analysis and detection. The results of technological mineralogical studies show that the main valuable elements in the ore are Pb and Zn, with a content of 0.90% and 3.23%, respectively. Galena and sphalerite are the main target minerals, and they are mainly distributed in the gangue minerals in a disseminated state. In addition, the embedded particle size is uneven, and part of the galena is wrapped in sphalerite, which has an adverse effect on the subsequent flotation operations. According to the nature of the raw ore, the flotation process of "preferentially selecting lead and selecting zinc from lead tail" is adopted, and a closed-circuit test is carried out on the basis of the optimal condition parameters obtained from the condition test. The test results show that the final Pb grade is 66.83%, The qualified lead concentrate product with a Pb recovery rate of 85.42% and a qualified zinc concentrate product with a Zn grade of 53.26% and a Zn recovery rate of 91.53% realized the effective utilization of the lead-zinc sulfide ore.
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