论文部分内容阅读
在溶液理论的基础上,提出了一种新的热力学处理方法,用于计算有机相组分活度系数、测定金属溶剂萃取反应热力学平衡常数以及预测金属萃取平衡分配.用纯热力学方法研究了:TBP-UO_2Cl_2,TBP-UO_2(NO_3)_2和(C_7H_(15))_2SO-UO_2(NO_3)_2等三种中性溶剂金属萃取体系.检验和比较了七种模型,其中以 Scat-chard-Hildebrand 和 Guggenheim 模型对实际计算更为简便,这两种模型不仅能用于三组分有机相,且能用于四组分有机相.
Based on the solution theory, a new thermodynamic method was proposed to calculate the activity coefficient of organic phase components, to determine the thermodynamic equilibrium constants of metal solvent extraction reaction, and to predict the equilibrium distribution of metal extraction.Using the method of pure thermodynamics, TBP-UO_2Cl_2, TBP-UO_2 (NO_3) _2 and (C_7H_ (15)) _2SO-UO_2 (NO_3) _2 were tested and compared with seven models, among which Scat-chard-Hildebrand And Guggenheim model for the actual calculation easier, these two models can not only be used for three-component organic phase, and can be used for four-component organic phase.