KCl-NH_4Cl-H_2O三元水盐体系溶解度的研究

摘要本文对含固溶体的KCl-NH4Cl-H2O三元体系进行了溶解度测定,将Pitzer电解质溶液理论模型用于含有固溶体的电解质体系,并进行了溶解度计算。计算结果与试验值值相吻合,该模型的应用将会越来越广。

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	赵长伟
	马沛生
	郭瓦力
	郭仁春

关键词：固溶体电解质溶液 Pitzer理论溶解度

Abstract： The ion-interaction Pitzer's model,together with its extended model,has been successfully applied for predictions of mineral solubility in natural water system,but its application for predicting the component solubility of sosoloid solid solution like KCl-NH4Cl-H2O three-component aqueous salt system has never been investigated.The reason is that the composition of sosoloid solid solution is always changing with liquid composition,so that the equilibrium of liquid-solid system is difficult to calculate.The object of this study is to investigate the application of the Pitzer's model for the calculation of equilibrium solubility of KCl-NH4Cl-H2O system with sosoloid solution.Excellent agreement with experimental solubility for ternary solubility with sosoloid solid solution.On the other hand,the study also tends to provide a theoretical basis for the manufacture process of Potassium Sulfate by conversion method.

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Received 2003-05-15; published 2003-05-15

引用本文:

赵长伟,马沛生,郭瓦力,郭仁春.KCl-NH_4Cl-H_2O三元水盐体系溶解度的研究[J]. 化学工业与工程, 2003,20(3): 145-149

ZHAO Chang-wei1,MA Pei-sheng1,GUO Wa-li2,GUO Ren-chun2.Study on the Solubility of the Three-Component System KCl-NH_4Cl-H_2O[J]. Chemcial Industry and Engineering, 2003,20(3): 145-149