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采用捕收剂MOH对橄辉岩型钒钛磁铁矿中钛铁矿进行浮选试验,探索MOH、H2SO_4及水玻璃用量对钛铁矿和脉石矿物浮选分离的影响,在条件试验的基础上,进行钛铁矿浮选开路和闭路试验。结果表明,通过"一粗一扫四精"闭路流程试验,最终获得TiO_2品位为46.94%,回收率为53.87%的钛精矿。产品质量检查可知,钛精矿中Mg O含量相对较高,仅满足钛精矿五级品要求。扫描电镜结果表明,钛精矿中存在一定量橄榄石,橄榄石难以抑制导致钛精矿中Mg O含量高,进而影响钛精矿的浮选指标。 相似文献
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白马粗渣年产量130万t,TiO_2平均品位约3.09%,目前直接排入尾矿库,造成资源浪费。在实验室采用ZCLA进行预先抛尾,抛尾精矿采用"磨矿除铁—强磁—螺旋—磨矿除铁—强磁—浮选"流程进行钛回收试验,获得了产率0.47%、TiO_2品位46.06%、TiO_2回收率7.18%的钛精矿,为白马粗渣钛回收提供了技术依据。 相似文献
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攀枝花某高铬型钛磁铁矿矿石中含有丰富的钛磁铁矿和钛铁矿资源,文章根据该矿石钛磁铁矿及钛铁矿等有用矿物的赋存状态,研发出“两段磨矿-磁选-磁浮选”分离回收钛磁铁矿和“两段强磁选-脱硫浮选-钛粗选-精选”回收钛铁矿的磁浮联合工艺流程,全流程闭路试验可获得产率34.20%、TFe品位55.71%、TiO2品位13.46%、TFe回收率70.54%、TiO2回收率50.87%的钛磁铁精矿以及产率4.86%、TiO2品位48.25%、TiO2回收率25.91%的钛精矿,高铬型钛磁铁矿中钛磁铁矿及钛铁矿得到有效回收。 相似文献
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某选铜尾矿含铁、硫等有价元素,磁选法选铁时,铁精矿品位只有60%左右、含硫大于2%、含硅13.67%,为不合格产品。通过研究,制定了浮选脱硫-弱磁选铁-反浮选降硅的选别工艺,可得到铁品位66.82%、回收率82.73%的铁精矿和硫品位36.42%、回收率87.89%的硫精矿。 相似文献
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东北寨金矿为古砷碳镘细粒浸染贫金矿石,直接浸金的金浸出率几乎为零 采用阶段窖矿、载体浮选工艺得金品位18~92 g/t的精矿。金回收率91.52,并甩掉了大量尾矿。浮选精矿焙烧--氧化提金工艺获得了良好指标,金总回收率达85.32% 相似文献
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白沙子岭锡石硫化矿选矿工艺试验研究 总被引:1,自引:0,他引:1
通过对试样的工艺矿物学研究,着重进行了先浮选脱硫、重选丢尾和摇床尾矿脱泥浮选的选矿工艺试验研究,获得较好选矿指标(原矿含锡0.41%)。摇床锡精矿:锡品位63.65%,回收率65.52%;浮选锡精矿:锡品位8.32%,回收率5.10%,锡总回收率为70.62%。试验中综合回收的铜精矿铜品位18.62%,回收率69.47%,提供了最佳选矿工艺流程,为选矿厂设计提供了科学依据。 相似文献
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The copper grade the low-grade copper-molybdenum ore in Shaanxi is 0.32% and the molybdenum grade is 0.048%.The copper and molybdenum minerals mainly exist in the form of sulfide ore. The properties are complex that there are many kinds of minerals in the ore, which are closely distributed and fine dissemination size. According to the properties of the ore, the technological process of bulk flotation and separation of copper and molybdenum was adopted in the experiment. With lime as regulator and reagent L03 as collector, the mixed concentrate of copper and molybdenum was obtained by the bulk flotation which flow-sheet is one roughing, three refining and two scavenging process. Then regrinding the mixed concentrate, use sodium sulfide as inhibitor of copper minerals, sodium silicate as slurry dispersant and inhibitor of silicate gangue minerals , kerosene as collector, can separate copper and molybdenum with the flow-sheet which one roughing, five refining and three scavenging. The copper concentrate with copper grade of 18.82% and copper recovery rate of 85.35% and molybdenum concentrate with molybdenum grade of 47.14% and molybdenum recovery rate of 79.24% were obtained by the final closed-circuit flotation test process, the indicator is nearly ideal. 相似文献
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针对广东某铜冶炼转炉渣进行了工艺矿物学及选矿试验研究,工艺矿物学显示该矿物中铜品位1.13%,脉石矿物主要为铁橄榄石等。该炉渣采用阶磨阶选工艺流程,在一段磨矿细度-74μm67.5%,快速浮选得到部分精矿,尾矿再磨细度-43μm94.9%条件下,可获得铜精矿品位20.05%(金3.85g/t、银202.5g/t),铜回收率76.85%(金58.71%、银78.45%)的浮选技术指标,同时,尾矿铜品位降到了0.27%,炉渣样中的铜资源得到了有效的综合利用。 相似文献
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