辛基羟肟酸捕收一水硬铝石的浮选溶液化学研究  

Flotation Solution Chemistry Study on Diaspore with Octylic Hydroxamic Aicd as Collector

作　　者：刘三军[1] 姚文明[1] 岳琦[1] 贺国帅[1] 李文华[1] 曹杨[1] 邹松[2] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083 [2]化工部长沙设计研究院,湖南长沙410117

出　　处：《矿产保护与利用》2016年第3期18-21,共4页Conservation and Utilization of Mineral Resources

基　　金：国家自然科学基金项目(51574282);中南大学博士后科学基金项目(134707);2015年中南大学硕士生自主探索创新项目(2015zzts269)

摘　　要：用浮选溶液化学的观点论述了辛基羟肟酸与一水硬铝石溶解组分的log C-p H图,从理论上分析辛基羟肟酸在一水硬铝石表面的吸附方式,并由红外光谱进行验证。浮选溶液化学和红外光谱分析结果表明,一水硬铝石与辛基羟肟酸的最佳作用区间为5.5<p H<8.5,此时一水硬铝石定位离子为Al-OH和AlO-,辛基羟肟酸阴离子[B-]离子通过化学作用吸附在一水硬铝石表面,且在p H=8.4左右达到最大值。This paper discussed logC - pH relationship of diaspore - octyl hydroxamic acid system from the viewpoint of flotation solution chemistry. The adsorption pattern of octyl hydroxamic acid on diaspore surface was theoretically analyzed, which was also verified by methods of infrared spectrum. The results showed that the best separation results could be obtained within the pH range of 5.5 to 8.5, when the anion [ B- ] of octyl hydroxamic acid chemically absorded at the active sites of A1 - OH and A1 - O- on the diaspore surface. The maximum adsorption amount appeared at pH = 8.4.

关 键 词：一水硬铝石 辛基羟肟酸 浮选溶液化学 红外光谱 

分 类 号：TD923.13[矿业工程—选矿] TD952.5