【摘要】：通過共沉淀和磁選從綠礬中回收磁鐵礦。在共沉淀階段,研究反應(yīng)條件對鐵回收的影響,確定最佳反應(yīng)參數(shù)如下:n(CaO)/n(Fe~(2+))1.4:1、反應(yīng)溫度80°C、亞鐵離子濃度0.4 mol/L、反應(yīng)終點溶液中Fe~(3+)/Fe~(2+)摩爾比1.9~2.1。在磁選階段,研究球磨時間和磁感應(yīng)強度對鐵回收的影響。球磨可以破壞混合產(chǎn)物中磁鐵礦的包裹和夾雜行為。結(jié)果發(fā)現(xiàn),混合產(chǎn)物球磨20 min后,磁選精礦的鐵品位和鐵回收率分別從51.41%和84.15%提高到62.05%和85.35%。
[Abstract]:Magnetite is recovered from alum by coprecipitation and magnetic separation. In the coprecipitation stage, the effect of reaction conditions on iron recovery was studied. The optimum reaction parameters were determined as follows: n (CaO) / n (Fe~ (2) 1.4 鈮，

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