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介绍了SLon-2000立环磁选机在弓长岭选矿厂的工业试验结果,连续10个月的指标为:给矿品位(铁百分含量)25.38%,粗精矿品位40.63%,尾矿品位10.71%,作业回收率78.49%,富集比1.601倍。作业率高达98.8%,磁介质不堵塞的良好选矿指标及优异设备性能。 相似文献
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八乡山铁矿资源丰富,嵌布粒度极细,一般为0.1mm-0.02mm,属难磨易铁矿。本试验采用三段磨矿、细筛闭路、三段磁选的选矿工艺流程。获得品位为TFe63、78%,回收率84.22%的铁精矿。为建厂提供了选矿工艺设计和该铁矿资源的利用提供了依据。 相似文献
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选矿厂最佳工艺流程初探 总被引:3,自引:0,他引:3
分析了选钛厂TiO2回收率低的原因,指出了设计流程(强磁选-重选-浮选-电选)和现流程(重选-浮选-磁选-电选)的不足,在科研的基础上,推荐的选钛最佳工艺流程为:原矿中微细粒级(-0.045mm)物料必须处理回收,粗粒(0.4~0.1mm)可采用GL-2型螺旋重选一粗粒筛分磨矿-浮选-磁选-电选流程处理回收;细粒(0.1~0.045mm)及微细粒(-0.045mm)可采用弱磁-脉动高梯度磁选-浮硫 相似文献
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选钛现流程总回收率只有21%左右,总收率低的原因是;微细粒级多、重选收率低,电选对-0.1mm粒级不适宜。通过对现流程生产进行分析,提出了提高总收率的几点建议。 相似文献
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低品位金铜矿石的选矿研究与实践 总被引:1,自引:0,他引:1
本文对金铜低品位矿石的选别采用混汞--浮选流程,用丁基黄药、1丁铵黑药和200号药剂优化组合配比使用,在PH7.5-8.0时,使选矿指标有了大幅度提高,为矿山增加了经济效益。 相似文献
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1—(—2—吡啶偶氮)—2—萘酚修饰碳糊电极测定铜的研究 总被引:7,自引:1,他引:6
本文报告1-(2-吡啶偶氮)-2-萘酚(PAN)修饰碳糊电极在乙酸盐缓冲液(pH5.0)中,与铜离子生成电活性螯合物,并吸收在电极表面,经介质交换到0.1mo1/LKC1中,用微分脉冲伏安法测定,用-0.15V出现一灵敏的还原峰。用正交试验优化法研究了测定铜的最佳条件。其相对标准偏差3.27%。这一方法用于阳极泥中铜的测定,回收率为94.3%。还用双电位阶跃计时仑法,循环伏安法研究了PAN修饰碳糊 相似文献
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含有机碳砂页岩型胶体金矿石是我国新开发的一种金矿类型。采用浮选-精矿焙烧-焙砂氰化浸出的选冶工艺流程处理这种金矿石,获得的试验指标为:浮选精矿含金27.33g/t,回收率80.15%,氰化浸出率90.02%,活性炭吸附率99.67%。 相似文献
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本文在硫化矿物无捕收剂浮选的电化学原理为基础,利用岩金矿石中地金与基载体矿物硫化矿的的共生关系,用硫化钠调整浮选回路的矿浆电位,工业试验实现了乳山市金矿岩石无捕收剂浮选新工艺。据16个月的统计,新工艺与常规浮选相比,浮选回收率提高了1.26%,为企业增加效益207.26万元,节约药剂费7.09万元,氰化回收率提高了1.61%,为企业增加效益279.50万元,节约氰化,污水成本192.50万元,为企 相似文献
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阐述了应用SLon磁选机作为攀枝花钢铁公司选钛厂全粒级粗选抛尾设备的选矿试验,结果表明:采用SLon磁选机组成磁-浮-电或磁-浮流程,可以获得精矿品位大于47%、回收率为46.25%-44.58%的流程指标,每年多回收钛精矿50余万t,增加产值25280万元,为该选厂技术改造提供了一条新途径. 相似文献
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某选厂钨细泥回收工艺的研究 总被引:3,自引:0,他引:3
针对某选厂原细泥生产流程现状,通过小型试验,对其钨细泥处理工艺进行了改进和完善,增设了以磁选-重选流程为主体的磁选-浮选-重选细泥回收工艺,通过技术改造、调试并投入生产使用后,使钨细泥精矿含WO3提高16.18%,细泥作业回收率提高29.71%。 相似文献
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金岭铁矿选矿厂原磁选流程存在处理能力低、选矿指标波动大,过滤给矿浓度低等问题。为此,将Ⅰ、Ⅱ型磁选机大型化,并在Ⅲ段磁选以磁选机代替磁聚机,从而扩大了生产能力,改善了选别指标,减少了水电消耗,降低了铁精粉水分, 相似文献
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João Paulo Melo Silva Augusta Cerceau Isaac 《Mineral Processing and Extractive Metallurgy Review》2018,39(1):68-72
Cationic reverse flotation of quartz is the standard or reference concentration route for itabirites containing at least 45% iron. Preceding the flotation stage, desliming in hydrocyclones must be conducted to remove ultrafine and colloidal particles from the flotation feed. The flotation performance assessed by weight and metallurgical recoveries and silica contamination in the concentrate is impaired by lower iron feed grades. Exploratory experiments of magnetic separation indicated that iron oxide particles in the size range <37 µm are entrained toward the non-magnetic product. This finding suggested a campaign of testing an alternative circuit consisting of magnetic separation preceding reverse flotation. Magnetic separation plays the roles of desliming and pre-concentration. The achieved content of silica in the alternative route concentrate was 1.46%, meeting the market specification for blast furnace pellet of 2%. The alternative route yielded significant gains in weight and metallurgical recoveries, reaching values 3.3% and 4.4% higher, respectively. 相似文献
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因氧化严重,印尼进口某多金属矿铜硫分离困难,铁精矿含硫严重超标.针对该矿矿石性质,开发了浮选-磁选联合工艺,浮选中以HT药剂消除溶液中Cu2+,实现了铜硫矿的分离和回收,浮选尾矿再用磁选回收铁,获得铜精矿产率9.75%,品位22.05%,回收率75.17%,含金0.97 g/t,含银14 g/t.硫精矿产率30.76%,品位49.94%,回收率64.23%.铁精矿产率26.84%,品位60.24%,回收率76.26%. 相似文献
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2CQCS-330×1600电磁感应辊式磁选机是专为选别锰矿石而研制的新设备,由地矿部选矿设备研究院与湘潭锰矿共同研制成功。本文介绍了该机对湘潭锰矿碳酸锰矿石选矿试验研究情况及该机的结构和技术性能。 相似文献
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Sunil Kumar Tripathy Y. Rama Murthy Veerendra Singh Nikkam Suresh 《Mineral Processing and Extractive Metallurgy Review》2016,37(3):196-210
Mineral and morphological characteristics of chromite ore strongly affect the separation efficiency while upgrading the low-grade deposits. Usually, chromite ore enrichment is carried out by using gravity separation due to high-concentration criterion between chromite and other minerals. However, chromite ore from Sukinda region, India, is a typical ore body with high iron content in the chromite spinel as well as gangue content in the form of oxide and hydroxides of iron-bearing minerals. So, the separation efficiency reduces by gravity method due to the lower value of concentration criterion. To address this, dry magnetic separation is an alternative approach to separate these iron-bearing gangue minerals from the chromite. This work investigated on the application of different dry high-intensity magnetic separators to separate the chromite grains from ferruginous chromite ore deposits of India. Prior to the separation, two different ore deposits of Sukinda region are subjected to detailed mineral, chemical, morphological, as well as magnetic properties characterization to visualize the separation. Tests confirm the effect of magnetic field strength along with other process parameters that influence the process of the separation of iron-bearing gangue minerals. The results on these separators are related to the influence of mineralogy, process parameters, and magnetic property of minerals, based on the experimental and statistical analysis of the process. Also, effect of desliming of the low-grade deposit prior to the dry magnetic separation is highlighted. 相似文献
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广西某钨矿原矿含WO36.2%,原矿中的钨主要是以黑钨矿的形式存在,还有少量的钨华和白钨矿,采用磁-重联合流程,即采用一粗一精一扫湿式强磁选—钨粗精矿再摇床精选流程,可以达到钨回收率为92.19%的选矿指标,获得钨品位为71.74%,品质达国家二类一级品标准的优质钨精矿。 相似文献
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