王硕,赵斌,郭宏飞,白童鹿,曹吉林

• 1:河北省绿色化工与高效节能重点实验室河北工业大学化工学院

摘要(Abstract)：

针对盐湖氯化钾与氯化镁资源的综合开发,提出以氯化铵做盐析剂分离氯化钾与氯化镁的设想,采用等温法测定了NH_4Cl-MgCl_2-KCl-H_2O四元体系0℃时的稳定相平衡数据,依据湿渣法与X射线衍射相结合的方法对平衡固相组成进行鉴定,绘制了该体系0℃的稳定相图,发现存在7个共饱点和8个结晶区:MgCl_2·6H_2O、KCl、NH_4Cl、KCl·Mg Cl_2·6H_2O、NH_4Cl·MgCl_2·6H_2O、(K_(1-n),NH_(4n))Cl、(NH_(4n),K_(1-n))Cl和(NH_(4n),K_(1-n))Cl·MgCl_2·6H_2O。依据相图分析和计算,设计了光卤石和NH4Cl为原料分离制备铵光卤石的新工艺,铵光卤石可用于无水氯化镁的生产。

关键词(KeyWords)： 相平衡;光卤石;氯化铵;铵光卤石

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(21576066)

作者(Author): 王硕,赵斌,郭宏飞,白童鹿,曹吉林

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