三氯化铋水解体系的热力学研究

来源期刊：中南大学学报(自然科学版)1993年第1期

论文作者：唐谟堂

文章页码：45 - 51

关键词：氯化冶金; 铋冶金; 热力学; 数模

Key words：chlorination metallurgy; metallurgy of bismuth; thermodynamics; numeral model

摘    要：本文根据同时平衡原理和电中性原理对Bi(Ⅲ)-Cl^--H₂O和Bi(Ⅲ)-Me(Ⅰ)-Cl^--H₂O系进行了常温下水解平衡的热力学分析,计算和绘制了这些体系水解平衡的[Bi³⁺]_T与[Cl^-]_T,[Me⁺]及[H⁺]或pH的热力学关系图。又将计算数据进行回归拟合,得出了相应数模关系。这些数模与三氯化锑水解系的数模属于同一类型,后者已获得实际应用。因此,这些数模对湿法炼铋具有重要的指导意义。

Abstract: According to the principles of simultaneous equilibrium and electronic charge neutrality,the thermodynamics on hydrolytic equilibria relating to the hydrolysis of bismuth trichlorideat room temperature have been studied for the systems of Bi(Ⅲ)-Cl^--H₂O and Bi(Ⅲ)-Me(Ⅰ)-Cl^--H₂O. The calculation of thermodynamic data and the ploting of [Bi³⁺]_T versus[Cl^-]_T, [H⁺] or pH, and [Me⁺] on the hydrolytic equilibria in the systems were carriedout. The calculated data were regressed and processed into mathematical models, which aresimilar to the models of the systems of Sb(Ⅲ)-Cl^--H₂O and Sb(Ⅲ)-Me(Ⅰ)-Cl^--H₂O. Thelatter has found practical uses. Therefore, these models are of great significance to the hy-drometallurgy of bismuth.