【摘要】 国内某合金磨屑废料中富含金属铁和铁氧化物,为实现其资源化利用,采用化学多元素、铁物相、MLA和SEM-EDS等手段进行了工艺矿物学研究。结果表明:原料主要物质组成为金属铁,含量为77.52%;其次为铁氧化物和铝氧化物,含量分别为11.13%和8.97%;原料中主要物质的粒度较细,铁氧化物和金属铁-38μm粒级产率分别为72.53%和63.66%;原料中金属铁和铝氧化物的单体解离度较高,金属铁、铁氧化物以及铝氧化物之间的连生体可通过磨矿实现单体解离。原料磁选获得了铁品位84.92%、铁回收率92.37%的精矿产品,其脱铝效果良好,但无法实现硅的有效脱除。更多还原

【Abstract】 In order to realize the resource utilization of metal iron and iron oxides in an alloy scrap,the process mineralogy was studied by means of chemical multielement,iron phase,MLA and SEM-EDS. The results showed that the main material composition of the raw material is metal iron and the content is 77. 52%;The contents of iron oxide and aluminum oxide were 11. 13% and 8. 97%,respectively. The particle size of the main substances in the raw material is fine,and the yield of iron oxide and metal iron below 38 μm is 72. 53% and 63. 66%,respectively. The monomer dissociation degree of metal iron and aluminum oxide in raw materials is high,and the monomer dissociation between metal iron,iron oxide and aluminum oxide can be realized by grinding. The concentrate with iron grade of 84. 92% and iron recovery rate of 92. 37% was obtained by magnetic separation of raw materials. The dealuminization effect was good,but the effective removal of silicon could not be realized.更多还原