Reduction of lead sulfate to lead sulfide with carbon monoxide

被引：0
作者：
Yong-xing Zheng
Wei Liu
Wen-qing Qin
Fen Jiao
Jun-wei Han
Kang Yang
Hong-lin Luo
机构：
[1] Central South University,School of Minerals Processing and Bioengineering
来源：
Journal of Central South University | 2015年 / 22卷
关键词：
lead sulfate; reduction; carbon monoxide; lead sulfide; pyrometallurgy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In order to decrease the solubility of PbSO4 and enhance lead recovery from PbSO4 bearing wastes, CO was employed as a reductant to transform PbSO4 into PbS. Reaction system was established and reductive thermodynamics of PbSO4 was calculated by software HSC 5.0. The effects of gas concentration, reaction temperature, time and mass of sample on reduction of PbSO4 were examined by thermogravimetry (TG) and XRD. Roasting tests further verify the conclusions of thermodynamic and TG analyses. The results show that increasing temperature in the reasonable range and CO content are favorable for the formation of PbS. The reduction process is controlled by chemical reaction and calculation value of the activation energy is 47.88 kJ/mol.
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页码：2929 / 2935
页数：6
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