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Sodium sulfide leaching of low-grade jamesonite concentrate in production of sodium pyroantimoniate

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Abstract

Sodium sulfide leaching of a low-grade jamesonite concentrate in the production of sodium pyroantimoniate through the air oxidation process and the influencing factors on the leaching rate of antimony were investigated. In order to decrease the consumption of sodium sulfide and increase the concentration of antimony in the leaching solution, two-stage leaching of jamesonite concentrate and combination leaching of high-grade stibnite concentrate and jamesonite concentrate were used. The experimental results show that the consumptions of sodium sulfide for the two-stage leaching process and the combination leaching process are decreased by 20% and 60% compared to those of one-stage leaching process respectively. The final concentrations of antimony in the leaching solutions of both processes are above 100 g/L.

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Authors and Affiliations

  1. School of Metallurgical Science and Engineering, Central South University, 410083, Changsha, China

    Yang Tian-zu PhD (Professor), Jiang Ming-xi, Lai Qiong-lin & Chen Jin-zhong

Authors
  1. Yang Tian-zu PhD
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  2. Jiang Ming-xi
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  3. Lai Qiong-lin
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  4. Chen Jin-zhong
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Correspondence to Yang Tian-zu PhD.

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Foundation item: Project(96-915-08-04) supported by the National Key Program of the 9th Five-Year Plan of China

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Yang, Tz., Jiang, Mx., Lai, Ql. et al. Sodium sulfide leaching of low-grade jamesonite concentrate in production of sodium pyroantimoniate. J Cent. South Univ. Technol. 12, 290–294 (2005). https://doi.org/10.1007/s11771-005-0147-1

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  • DOI: https://doi.org/10.1007/s11771-005-0147-1

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