|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Minerals Extraction and Processing
||PAN-47: Mechanical Activation Strengthen the Leaching of Oxide-sulphide Zinc Ore
||Kun Yang, Shiwei Li, Chao , Libo Zhang, Jinhui Peng
|On-Site Speaker (Planned)
In this paper, mechanical activation is adopt to strengthen the leaching of oxide-sulphide zinc ore. By means of chemical analysis, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscope and X-ray photoelectron spectroscopy et al. analysis technologies, effect of mechanical activation on the leaching of oxide-sulphide zinc ore is investigated. The results show that mechanical activation can truly improve leaching rate, and within one hour, zinc leaching rate is 85%, under conditions of total concentrate of ammonia being 7.5 mol/L, molar ratio of NH3 and NH4Cl being 1:1, the ratio of solid and liquid being 10: 1, and activation time being 2h, while in a magnetic stirring leaching, the leaching rate just can reaches 78%. The activation mechanism is also discussed in this paper.
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