CAJ | 학술논문

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.
응용상률대Pb-S-O체계내조분진행분석,학정료해체계가능존재적4개삼응취상점.결합탁복규칙화상관평형반응적열역학계산,회제해체계삼응취상점지간적량충관련도:α형평면탁복도화β형평면탁복도.분석결과표명:β형평면탁복도여전통Pb-S-O체계우세구도일치,설명가이기우탁복규칙회제Pb-S-O체계우세구도;α형평면탁복도가이해석Kivcet련연공예재고양위、고류위조건하직접생성대량조금속Pb적현상.
@@@@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 asαplane topological diagram andβplane-topological diagram, were plotted based on topological rules and thermodynamic calculation of related equilibrium reactions. The results show that theβplane- 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, αplane-topological diagram can be used to elucidate the phenomenon of which crude lead is generated under high oxygen and sulfur pressures during Kivcet process.