自然科学版 英文版
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中南大学学报(英文版)

Journal of Central South University

Vol. 12    No. 3    June 2005

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Sodium sulfide leaching of low-grade jamesonite concentrate in
production of sodium pyroantimoniate
YANG Tian-zu(杨天足), JIANG Ming-xi(江名喜), LAI Qiong-lin(赖琼琳), CHEN Jin-zhong(陈进中)

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

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.

 

Key words: sodium sulfide; jamesonite concentrate; leaching; low-grade

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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