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大新锰矿低品位氧化锰粉矿细碎至-3mm后通过单一干式强磁选得到磁选精矿含锰34.80%,锰回收率86.60%;通过干式强磁一跳汰重选得到化工锰精矿含锰38.60%,锰回收率41.17%;7台金锰精矿含锰31.95%,锰回收率45.43%;两个精矿锰总回收率86.60%。 相似文献
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云南锰矿资源丰富,具有品位高、低磷低铁、易选等特点。文章概述了斗南、鹤庆、建水等锰矿的选矿科研进展情况,三个锰矿均可采用强磁选或磁-重选流程选别,可提高品位8—12%;精矿含锰可达33—35%,锰回收率在80%以上的好结果。 相似文献
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屈家山锰矿属低磷、低铁碳酸锰矿床,锰矿物的单体解离粒度在40μm左右,要细磨深选难度大,利用贫富不均匀的锰矿物连生体且富锰连生体粒径较大,锰含量较高的特点,选择大粒手选和粗粒强磁选的工艺流程,较为经济合理。当原矿含锰22.75%时,大于25mm手选,可获得含锰39.74%、锰回收率22.22%的二级精矿;小于6mm强磁选可获得含锰30.46%、锰回收率60.00%的三级精矿。锰的总回收率可达82.22%. 相似文献
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斗南锰矿是一种褐锰矿-碳酸盐型锰矿,属低磷、低铁、高碱度的贫锰矿。本文介绍了对该种类型锰矿的单一强磁选和跳汰-强磁选的试验和连选试验结果,试验表明两流程均可作为选别该矿石的可行方案。 相似文献
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本文针对陕西某低品位难选碳酸锰矿开展选矿工艺试验研究,并分别进行了两种不同品位矿样的选矿试验。结果表明,对于品位8.87%的低品位贫矿,采用磁选可获得锰品位14.35%,回收率89.59%的锰精矿;对于锰品位10.68%的混合样,磁选可获得品位16.02%,回收率88.61%的锰精矿,选别指标较好。 相似文献
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根据湘潭锰矿 CS-1单一强磁选选别贫碳酸锰矿工艺实践经验,结合桃锰等矿 CS-2选锰应用,提出 CS-1和 CS-2相结合的单一强磁选锰的新工艺,这一改进可提高锰的回收率和产量。 相似文献
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广西某低品位碳酸锰矿选矿试验研究 总被引:1,自引:0,他引:1
针对广西某低品位碳酸锰矿嵌布粒度细、单体解离困难、铁硅含量高、以菱锰矿为主等特点,经研究,试验采用湿式强磁选法回收该锰矿。在磨矿细度-0.074 mm占75%、粗、扫选磁场强度1.35 T、精选磁场强度1.07 T条件下,进行一粗一精一扫强磁选试验,实验室小型闭路试验可获得锰品位15.53%、锰回收率77.79%的锰精矿;扩大连续试验可获得锰品位15.57%、回收率76.18%的锰精矿。 相似文献
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工艺矿物学研究结果表明,广东某黑白钨矿属石英脉型钨矿,嵌布粒度较粗,钨为主要回收金属,钼、铋可综合回收。试验室采用粗粒重选、细粒浮选的重选-浮选联合选矿工艺,对含WO30.58%的原矿进行选别,最终获得钨精矿含WO365.10%、回收率可达82.18%,产品指标较高。 相似文献
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本文论述了回收砂金矿山精选厂尾矿中金的一种新工艺,即重选-磁-磁流体静力分选联合流程法,以其在某些砂金矿山生产实验的应用实例,进一步阐述了其具有广阔和发展和应用前景。 相似文献
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Avimanyu Das Biswajit Sarkar 《Mineral Processing and Extractive Metallurgy Review》2013,34(6):359-394
ABSTRACTThe article makes an effort in consolidating the developments in the field of advanced gravity separation techniques for processing fine particles over the last few decades. The application potentials of various unit operations and the influence of process variables and feed characteristics on the process performance are identified. Fundamentals of advanced gravity separators are discussed from theoretical and applied perspectives. Comparative analyses of various related unit operations are incorporated including the advantages and short falls of different advanced gravity separation techniques. A general guideline is presented that will help designing new mineral processing flow sheets with better efficiency indices. 相似文献
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电选技术的应用现状与发展 总被引:3,自引:1,他引:3
对电选的发展沿革进行了较详细地评述;着重叙述了选矿中的各种电选法的实践应用;讨论了影响电选过程的矿物特性参数;分析了电选法的传统工业应用;还介绍了电选法的一些新用途和潜在的应用前景。 相似文献
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A. K. Mukherjee 《Mineral Processing and Extractive Metallurgy Review》2013,34(3):191-210
Over the years, different methods have been used to evaluate separation efficiency of gravity separation processes. In this paper, all these methods are reviewed and then critically evaluated for their application in the industry. Methods based on recovery of minerals are better than the other available methods. Among the recovery-based methods, those proposed by Lincoin and Gaudin probably addressed most of the important aspects of efficiency calculation. However, in these two methods, the separation efficiency value is also a function of feed characteristics. Therefore, to evaluate the role of process efficiency without the influence of feed characteristics, a new method is proposed for gravity separation processes. The method has its application in process optimization. 相似文献