Simulation studies on metastable phase equilibria in the aqueous ternary systems (NaCl-MgCl_(2)-H_(2)O) and (KCl-MgCl_(2)-H_(2)O) at 308.15K

作     者：Tianlong DENG Baojun ZHANG Dongchan LI Yafei GUO 

作者机构：Key Laboratory of Salt Lake Resources and ChemistryQinghai Institute of Salt LakesChinese Academy of SciencesXining 810008China College of MaterialsChemistry and Chemical EngineeringChengdu University of TechnologyChengdu 610059China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2009年第3卷第2期

页      面：172-175页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：Financial support from the State Key Program of National Natural Science of China(No.20836009) the National Natural Science Foundation of China(Grant Nos.40573044,40773045) the“A Hundred Talents Program”of the Chinese Academy of Sciences(No.0560051057) the Specialized Research Fund for the Doctoral Program of Chinese Higher Education(No.20060616004)is greatly acknowledged 

主　　题：green chemistry solar pond technique simu-lation metastable phase equilibrium solubility 

摘      要：The solubilities and densities of the aqueous metastable ternary systems(NaCl-MgCl_(2)-H_(2)O)and(KCl-MgCl_(2)-H_(2)O)at 308.15 K were determined by the isothermal evaporation *** the basis of the experimental results,the phase diagrams for those systems were *** was found that the former system belongs to the hydrate-I type with one invariant point of(NaCl+MgCl_(2)·6H_(2)O),two univariant curves,and two crystal-lization regions corresponding to halite(NaCl)and bischofite(MgCl_(2)·6H_(2)O);and the latter system belongs to the type of incongruent-double salts with two invariant points of(KCl+KCl·MgCl_(2)·6H_(2)O)and(MgCl_(2)·6H_(2)O+KCl·MgCl_(2)·6H_(2)O),three univariant curves,and three crystallization regions corresponding to potassium chlor-ide(KCl),carnallite(KCl·MgCl_(2)·6H_(2)O)and bischofite(MgCl_(2)·6H_(2).No solid solutions were found in both systems.