摘要
通过化学分析、Ｘ－射线衍射、差热分析和溶出率测定等方法对我国不同产地的一些重要含铝矿物的酸溶性能及其物相组成进行了比较研究．结果表明：三水铝石型矿物在通常条件下直接溶出时，一水软铝石型矿物、粘土型矿物经焙烧后溶出时，其氧化铝溶出率均较高；一水硬铝石型矿物焙烧后经固结保温二次溶出时其氧化铝溶出率可达９０％以上，这些矿物可用作制备硫酸铝。
The solubilities in acid and the mineral constitutions of some important aluminium-containing minerals from different areas in China are comparatively researched by chemical analysis,X-ray diffraction,differential thermal analysis and digestion rate measurement.It is indicated that the digestion rates of Al 2O 3 are higher when gibbsite mineral was acid-treated in common conditions and boehmit,Kaolinite,clay minerals were acid-treated after being roasted.The digestion rates of diasporic ores are over 90% by thermal solidified re di gesting method.These minerals are fine raw materials for preparation of aluminium sulphate,aluminium chloride and polymer aluminium chloride.
出处
《郑州大学学报（自然科学版）》
CAS
1997年第1期89-93,共5页
Journal of Zhengzhou University (Natural Science)
关键词
含铝矿物
物相
酸溶性能
溶出率
矿物
aluminum-containing mineral
mineral constitution
acid digestibility
thermal solidified re-digesting.
