Research status and prospect of resource utilization of sulfide tailings
Received:January 26, 2021   Revised:February 22, 2021   Accepted:February 26, 2021      Published Online:June 29, 2021
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KeyWord:Sulfide mine tailings; Multi-channel utilization;Resource utilization; environmentalSfriendly; High income
           
AuthorInstitution
zhangxiaoyong School of Land and Resources Engineering, Kunming University of Science and Technology
fengdongxia School of Land and Resources Engineering, Kunming University of Science and Technology
bailin School of Land and Resources Engineering, Kunming University of Science and Technology
yangduo School of Land and Resources Engineering, Kunming University of Science and Technology
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Abstract:
      Due to the rapid growth of sulfide ore tailings reserves and low utilization rate, problems such as serious stockpile and large occupation area are caused, which have brought great harm to the society and the environment, so the resource utilization of sulfide ore tailings has been paid more and more attention. By comprehensively discussing the status quo and hazards of sulfide tailings, the necessity of multi-channel utilization of sulfide tailings is explained. According to its different components and properties, it discusses the resource utilization of sulfide tailings from four aspects: building materials, chemical products, tailings re-selection and tailings filling. Among them, sulfide tailings can be used as raw materials for building materials to produce cement, concrete products, building bricks, microcrystalline-glass and ceramics. The chemical products include sulfur, industrial sulfuric acid, metallurgical flux, refractory materials and metallic magnesium, etc. Tailings re-selection can be achieved through traditional beneficiation(Gravity, magnetic separation, flotation) and biological leaching methods, alleviating the current shortage of mineral resources. Tailings filling effectively avoids safety accidents such as leakage and collapse in the goaf. Summarizing and combing the resource utilization of sulfide tailings provides a certain reference for its follow-up research.
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