中国有色金属学报(英文版), 2017, 27(1): 211-219.
10.1016/S1003-6326(17)60024-4
采用共沉淀法从绿矾中磁选回收铁

余旺 1, , 彭映林 2, , 郑雅杰 3,

1.中南大学 冶金与环境学院,长沙,410083;
2.湖南城市学院 化学与环境工程学院,益阳,413000;
3.中南大学 冶金与环境学院,长沙,410083

通过共沉淀和磁选从绿矾中回收磁铁矿。在共沉淀阶段,研究反应条件对铁回收的影响,确定最佳反应参数如下:n(CaO)/n(Fe2+)1.4:1、反应温度80°C、亚铁离子浓度0.4 mol/L、反应终点溶液中Fe3+/Fe2+摩尔比1.9~2.1。在磁选阶段,研究球磨时间和磁感应强度对铁回收的影响。球磨可以破坏混合产物中磁铁矿的包裹和夹杂行为。结果发现,混合产物球磨20 min 后,磁选精矿的铁品位和铁回收率分别从51.41%和84.15%提高到62.05%和85.35%。
关键词: 绿矾   二氧化钛   磁铁精矿   共沉淀   湿磨   磁选
引用: 余旺, 彭映林, 郑雅杰 采用共沉淀法从绿矾中磁选回收铁. 中国有色金属学报(英文版), 2017, 27(1): 211-219. doi: 10.1016/S1003-6326(17)60024-4
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