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山西省某微细粒赤(褐)铁矿的矿石具有铁矿物嵌布粒度较细,粘土矿物呈集合体形式存在于结晶的的赤(褐)铁矿表明,导致单体解离难度大的特点。试验采用重选、磁选、磁—重联合选矿三种工艺流程均未得到较理想的选别指标,因此考虑采用配矿并结合摇床重选工艺流程进行试验研究。通过进行配比、磨矿细度、调优、配矿等试验研究,结果表明:采用镜铁矿为配矿物,在原矿与镜铁矿配矿比为5:2时可获得TFe品位为64.15%,回收率为33.80%的铁精矿。为开发利用该地区的铁矿资源提供了依据,具有较好的经济效益和社会效益。 相似文献
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In light of characteristic of low quality feldspar ores in Wanzai Jiangxi province, steel ball was taken as grinding medium,and selective grinding could make impurity separate from feldspar effectively. Through the flow of flotation-desliming-high gradient magnetic separation,the feldspar Concentration 1 was obtained with the yield of 70.19%,containing Fe2O3 0.17% and TiO2 0.07%. The feldspar Concentrate 1 could meet the quality requirement of high-grade construction ceramic. And the slime that was deslimed in the flow was also separated and recovered; the feldspar Concentration 2 was obtained with the yield of 13.18%, containing Fe2O3 0.31% and TiO2 0.17%. The feldspar Concentrate 2 can be used for raw material of low-end ceramic. And gangue, with the yield of 16.63%, was thrown away in this flow, the separating efficiency was high. Employing this flow could also bring high economy benefit and low influence of pollution to environment. 相似文献
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