摘要
应用相律对Pb-S-O体系内组分进行分析,确定了该体系可能存在的4个三凝聚相点。结合拓扑规则和相关平衡反应的热力学计算,绘制该体系三凝聚相点之间的两种关联图:α型平面拓扑图和β型平面拓扑图。分析结果表明:β型平面拓扑图与传统Pb-S-O体系优势区图一致,说明可以基于拓扑规则绘制Pb-S-O体系优势区图;α型平面拓扑图可以解释Kivcet炼铅工艺在高氧位、高硫位条件下直接生成大量粗金属Pb的现象。
The components of Pb-S-O system were analyzed with phase rule, and four coexisting points of three condensed phases were determined. The relation-diagrams among coexisting points of three condensed phases for the Pb-S-O system, which were denoted as a plane topological diagram and β plane-topological diagram, were plotted based on topological rules and thermodynamic calculation of related equilibrium reactions. The results show that the β plane- topological diagram is in accordance with the predominance area diagram of Pb-S-O system calculated by traditional methods, indicating that this method is feasible to plot predominance area diagram of Pb-S-O system. Meanwhile, α plane-topological diagram can be used to elucidate the phenomenon of which crude lead is generated under high oxygen and sulfur pressures during Kivcet process.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2013年第3期836-842,共7页
The Chinese Journal of Nonferrous Metals
基金
国家高技术研究发展计划项目(2010AA065201
2011AA061003)
作者简介
通信作者：谭军，副教授，博士；电话：0731-88877364；E-mail：yytanjun@163．com
