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本文研究了DNG在盐酸介质中萃取Au(Ⅲ)的热力学过程.通过考察氯离子浓度和温度对Au(Ⅲ)分配比的影响,测定出萃取反应的平衡常数K,焓变△H~0,自由能变化△G~0和熵变△S~0.
In this paper, the thermodynamic process of extracting Au (Ⅲ) from DNG in hydrochloric acid was studied. The equilibrium constants K and enthalpy △ H ~ 0 of the extraction reaction were determined by investigating the effect of chloride ion concentration and temperature on the distribution ratio of Au (Ⅲ) Free energy change △ G ~ 0 and entropy change △ S ~ 0.