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，天津 300130

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NH₄Cl-MgCl₂-KCl-H₂O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：MgCl₂·6H₂O、KCl、NH₄Cl、KCl·MgCl₂·6H₂O、NH₄Cl·MgCl₂·6H₂O、（K_1-n，NH_4n）Cl、（NH_4n，K_1-n）Cl和（NH_4n，K_1-n）Cl·MgCl₂·6H₂O。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

DOI: 10.3969/j.issn.1003-9015.2017.00.012

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