Cu—Fe—S—Cl-—H2O系的热力学平衡及其电位—pH图(25℃)
来源期刊:中南大学学报(自然科学版)1982年第1期
论文作者:黄振谦
文章页码:29 - 38
关键词:热力学平衡; 电位差; 热力学分析; 热力学原理; 黄铜矿; 自由度; 络离子; 稳定区; 虚线; 氯量
摘 要:本文基于溶液各组成同时处于平衡的热力学原理,分析了 Cu—Fe—s—Cl-—H2O 系的热力学平衡,从而绘制了黄铜矿—Cl-—H2O 系的电位—pH 图。从热力学分析表明,当氯含量在一定范围内,该体系出现一个 CuCl(s)稳定区。氯量过低或过高,CuCl(s)都会消失。文中还讨论了从 Cu—Fe—S—Cl-—H2O 系中获得 CuCl(s)的可能性。
Abstract: Based on the thermodynamic principle that all species of solution are in simultaneous equilibrium,this paper has analyzed the thermodynamic equi- librium of Cu—Fe—S—Cl—H2O system and represented it by constructing the potential—pH diagram of chalcopyrite-Cl--H2O system.The thermo- dynamic analysis indicates that when the chlorine content of solution is wi- thin a certain limit,there will appear a stable region of CuCls,in the system.With too high or too low a chlorine content,CuCls,will not appear. At the same time,the possibility of obtaining CuCls,from Cu-Fe-S-Cl-- -H2O system has also been discussed in this paper.