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Relationship between rheological behavior and flotation rate in slurry with different chalcopyrite and lizardite concentration

不同浓度黄铜矿和利蛇纹石条件下矿浆流变行为与浮选速率间的关系

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Abstract

The relationship between viscosity/yield stress and flotation rate in different chalcopyrite and lizardite concentrations was investigated by zeta potential measurements, rheological tests, flotation experiments, and Derjguin-Landau-Verwey-Overbeek theoretical calculation. Results indicated that the concentration of minerals would affect the viscosity and yield stress of the slurry. That is, the viscosity/yield stress in the slurry rises accordingly when the concentration of minerals increases. The increase in viscosity/yield stress in slurry is also unfavorable to the enrichment of chalcopyrite but is conducive to the entrainment of lizardite in either single or binary system. Specifically, the flotation rate of chalcopyrite decreases while that of lizardite increases with the rise in viscosity/yield stress.

摘要

本文通过动电位检测、流变性测试、浮选试验和DLVO理论计算探究了不同浓度黄铜矿和利蛇 纹石条件下矿浆黏度及屈服应力与浮选速率间的关系。结果表明,矿物浓度能影响矿浆的黏度及屈服 应力值:当矿物浓度增加时,矿浆黏度及屈服应力也相应增大; 在单矿物或混合矿体系下,矿浆黏度 或屈服应力的增加不利于黄铜矿的富集,但有利于蛇纹石的夹带:随着矿浆黏度及屈服应力的增加, 黄铜矿的浮选速率降低而利蛇纹石的浮选速率增加。

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Authors and Affiliations

  1. School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China

    Jia-cheng Hu  (胡家城) & Qing Shi  (石晴)

  2. Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-Containing Mineral Resources, Central South University, Changsha, 410083, China

    Jia-cheng Hu  (胡家城) & Qing Shi  (石晴)

Authors
  1. Jia-cheng Hu  (胡家城)
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  2. Qing Shi  (石晴)
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Contributions

SHI Qing provided the concept and instruction. HU Jia-cheng conducted the experimental test and wrote the draft of the manuscript.

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Correspondence to Qing Shi  (石晴).

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Conflict of interest

SHI Qing and HU Jia-cheng declare that they have no conflict of interest.

Foundation item: Project(2018TP1002) supported by the Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, China; Project(2019zzts994) supported by the Central South University Graduate Research and Innovation Project, China

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Hu, Jc., Shi, Q. Relationship between rheological behavior and flotation rate in slurry with different chalcopyrite and lizardite concentration. J. Cent. South Univ. 29, 1479–1487 (2022). https://doi.org/10.1007/s11771-022-4935-7

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  • DOI: https://doi.org/10.1007/s11771-022-4935-7

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