砷在铁液中的物理化学行为
来源期刊:中南大学学报(自然科学版)1980年第3期
论文作者:陈元鼎
文章页码:125 - 132
关键词:物理化学行为; 标准生成自由能; 活度系数; 标准自由能变; 温度; 关系曲线; 等压热容; 生成反应; 系相图; 文献
摘 要:借助于铁—砷二元系的相图和资料,研究了下述问题:1.1600℃时Fe—As二元系中铁和砷的活度和活度系数;2.As2O3和AsCl3标准生成自由能变量与温度的关系;3.真空冶金和真空处理时Fe—As二元系中砷的挥发系数。
Abstract: With the help of the Phase diagram for the iron-arsenic binary systemand the data,the following problems have been studied:1.Activities and activity coefficients of constituents of iron and ars-enic in binary system Fe—As at 1600℃.2.Variation of the standard free—energy change of formation ofAs2O3 and AsCl3 with temperature.3.Volatility coefficient of arsenic in binary system Fe-As in vacuummetallurgy or ASEA-SKF.