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Sodium sulfide leaching of low-grade jamesonite concentrate in production of sodium pyroantimoniate 被引量:5

Sodium sulfide leaching of low-grade jamesonite concentrate in production of sodium pyroantimoniate
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摘要 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 100g/L. 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 100g/L.
出处 《Journal of Central South University of Technology》 2005年第3期290-294,共5页 中南工业大学学报(英文版)
基金 Project(96 915 08 04)supportedbytheNationalKeyProgramofthe9thFive YearPlanofChina
关键词 sodium sulfide jamesonite concentrate LEACHING LOW-GRADE 硫化钠 脆硫锑铅矿 浸出 冶炼技术
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