Flotability Improvement of Ilmenite Using Attrition-Scrubbing as a Pretreatment Method
Flotability Improvement of Ilmenite Using Attrition-Scrubbing as a Pretreatment Method
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使用磨擦洗涤作为预处理方法改善钛铁矿的可浮性
DOI：
10.3390/min7010013
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发表时间：
2017-01
期刊：
影响因子：
2.5
通讯作者：
Wei Sun
中科院分区：
文献类型：
--
作者：
Jihua Zhai;Pan Chen;Hongbin Wang;Yuehua Hu;Wei Sun
在矿物学研究的基础上，对攀枝花选铁尾矿回收利用钛铁矿的浮选技术进行了研究。矿物学研究结果表明，该有价值矿物的主要产状是钛铁矿的游离晶粒。浮选条件实验结果表明，经过磨擦的原矿具有良好的可浮性，与未经磨擦的原矿相比，回收率较高，品位略有下降。此外，开路实验也证明了磨擦原矿的优越性。闭路实验结果表明，可获得合格的钛铁矿精矿，收率、品位、回收率分别为22.26%、47.06%、60.73%。理论研究和分析表明，摩擦洗涤样品具有优异的可浮性有两个因素。首先，摩擦洗涤样品可以在新产生的新鲜钛铁矿表面上发现更多的亚铁离子，从而导致活性位点的增加。二是在磨擦洗涤过程中，可以促进亚铁离子向三价铁离子的转化。
Flotation technology of the recovery and utilization of ilmenite from tailings of iron beneficiated in Panzhihua was investigated based on mineralogical study. The results of mineralogical study show that the main occurrence of the valuable mineral are liberated grains of ilmenite. Experimental results of flotation conditions show that attrition-scrubbing raw ores exhibit good flotability with higher recoveries and a slight decrease in grade compared to ores without attrition-scrubbing. Further, open-circuit experiments also prove the superiority of attrition-scrubbing raw ores. The results of closed-circuit experiments show that qualified ilmenite concentrate can be obtained and the yield, grade, and recovery are 22.26%, 47.06%, and 60.73%, respectively. Theoretical study and analysis show that there are two contributions to superior flotability for attrition-scrubbing samples. The first is that the attrition-scrubbing samples can uncover more ferrous ions on the newly-produced fresh ilmenite surface, resulting in the increase in active sites. The other is that in the process of attrition-scrubbing, the transformation of ferrous ions to ferric ions can be promoted.
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DOI：
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发表时间：
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期刊：
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影响因子：
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DOI：
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发表时间：
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影响因子：
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