利用磁场分离铝熔体中的富铁相  

Electromagnetic Separation of Iron-Rich Phases from Molten Aluminium

作　　者：姚广春[1] 孙中祺[1] 邱竹贤[1] 

机构地区：[1]东北大学材料电磁过程教育部重点实验室,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2001年第2期127-129,共3页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目 !(5 97740 17);国家重点基础研究发展规划项目! (G19990 6 490 4)

摘　　要：原铝中含有的铁、硅杂质 ,主要以枝状的化合物存在·当向铝熔体中加入一定量的锰时 ,锰与铁、硅、铝生成金属间化合物·该类富铁金属间化合物呈较大的块状或球状颗粒 ,可用电磁将其分离·利用富铁相与铝熔体导电性差异 ,可用交变磁场将其分离出来 ;利用富铁相与铝熔体导磁性差异 ,可用稳恒磁场将其分离出来·实验结果表明 ,交变磁场和稳恒磁场可使铝熔体富铁相定向聚集·The Fe and Si impurities in molten aluminium are polymerized with Al to form inter metallic compound distributed dendritically. It is found that when element Mn is added into the molten aluminium, Mn can polymerized with element Fe,Si and Al to form iron rich compounds which are in sphere or in agglomeration. The experiments show that the iron rich compounds can be separated by the alternating magnetic field due to the difference of magnetic conductivity between the iron rich compounds and molten aluminium. The difference of magnetic susceptibility between the iron rich phases and molten aluminium is used to separate them by a steady magnetic field.

关 键 词：铝熔体 电磁分离 富铁相 交变磁场 稳恒磁场 锰 金属间化合物 

分 类 号：TF821[冶金工程—有色金属冶金] TF804