朝鲜某钛铁矿选矿试验研究

朝鲜某地区钛铁矿矿砂主要元素为铁、钛.铁矿物主要为钛铁矿,少量为磁铁矿.钛铁矿单体仅占43.70％,部分钛铁矿包裹脉石矿物,且包裹体细小.试验对溜槽重选,溜槽重选粗精矿磨矿-摇床重选、原矿分级重选等工艺流程进行了试验研究,最后确定采用溜槽重选-摇床再选-摇床精矿弱磁选和摇床中矿再磨-摇床-精矿弱磁选的工艺流程,试验获得铁精矿铁品位61.30％、回收率5.11％,钛精矿TiO2品位46.81％、TiO2回收率71.62％.     

海南儋州鲕状褐铁矿选矿研究

针对海南儋州某褐铁矿矿石性质,采用阶段磨矿多段分选工艺,进行了强磁选、絮凝浮选、磁化焙烧及弱磁选等选矿试验研究。第一段磨矿细度为-0．074mm68％的原矿经一次强磁粗扫选,混合精矿进入二次磨矿,-0．074mm占95％的磨矿产品絮凝去泥后进入混合胺反浮选,浮选精矿再磁化焙烧一弱磁选,可得到铁品位60．45％、回收率52．48％的最终精矿。     

云南钛铁矿砂矿磁选试验研究

云南钛铁矿石中主要有用矿物为钛铁矿、钛磁铁矿,矿石泥化较严重,针对该矿石进行了磁选试验研究。对原矿采用选择性擦洗解离,可以得到TiO2品位35.31%,产率78.25%的+0.030mm产品及TiO2品位8.46%,产率21.75%的-0.030mm产品。+0.030mm粒级采用弱磁除铁,弱磁尾矿采用分级-强磁选工艺进行选钛试验,对弱磁精矿再磨后采用弱磁-强磁工艺进行钛、铁分离;-0.030mm粒级采用脱泥-磁选工艺进行细粒选钛试验。最终可得到TiO2品位48.83%的钛精矿,回收率85.51%,TFe品位56.62%的铁精矿,回收率25.17%。该工艺合理可行,选矿指标较为理想。      

内蒙古某钛铁矿选矿试验研究

内蒙古某钛铁矿的主要有价矿物为钛铁矿和钒钛磁铁矿,并伴生有极少量的锆石和金红石,试验原料为现场原矿经螺旋选矿机重选后得到的重砂产品,试验采用弱磁选铁-强磁选钛-摇床精选工艺流程,在给矿中w(TiO2)=18.29％,w(Fe)=23.68％的情况下,获得TiO2品位48.79％和TiO2回收率70.56％的钛精矿,以及Fe品位58.29％和Fe回收率35.96％的钒钛磁铁精矿.     

某超贫磁铁矿中钛铁矿回收试验研究

河北某超贫磁铁矿中钛品位极低,为对其进行综合利用,本试验确定了“阶段磨矿、强磁—浮选”技术路线,即首先在较粗磨矿细度下进行钛铁矿的强磁选预富集,强磁粗精矿再磨后使用新型捕收剂BK426进行钛铁矿无抑制剂浮选.采用该技术,可以从TiO2品位为4.03％的超贫磁铁矿中得到TiO2品位45.48％、回收率为41.01％的钛铁矿精矿,较好地实现了超贫磁铁矿资源中钛资源的综合回收.     

陕西安康地区低品位钒钛磁铁矿选矿实验研究

针对陕西安康地区岩浆岩钒钛磁铁矿,其含量为TFe 20.90％、TiO27.67％,钛磁铁矿TFe理论品位仅为52.44％,钛铁矿TiO2理论品位为47.83％.矿石组成复杂,金属矿物主要为钛磁铁矿和钛铁矿,脉石矿物主要为绿泥石、斜长石、辉石和角闪石.针对矿石性质,采用两段阶段磨选选铁-强磁浮选选钛工艺流程可有效富集回收矿石中的铁、钛金属,获得铁精矿和钛精矿.最终获得铁精矿产率为12.35％,TFe品位为50.18％,TFe回收率为29.37％;钛精矿产率为6.38％,TiO2品位45.34％,对原矿TiO2回收率为38.31％,较好的实现了铁、钛的回收.     

陕西某难选原生钛铁矿选矿工艺研究

陕西某地原生钛铁矿为钒钛磁铁矿选铁尾矿,原矿品位较低,矿物组成复杂,钛铁矿与榍石、钛赤铁矿等脉石矿物可浮性相近,且钛铁矿嵌布粒度细,与榍石、钛磁铁矿等脉石连生密切,分离难度大。针对该矿石性质,进行了4种方案的工艺对比试验研究,结果表明,一段高梯度强磁选-磨矿-弱磁选-二段高梯度强磁选-脱硫浮选-钛浮选方案,工艺简单,精矿指标最好,在原矿Ti O2品位9.78%的情况下,获得了Ti O2品位46.82%,回收率40.84%的钛铁矿精矿,且浮选前再磨后,精矿指标可进一步提高到Ti O2品位47.23%,回收率45.36%。     

内蒙古呼伦贝尔早中生代花岗岩的年代学和岩石地球化学研究：对岩石成因和地球动力学机制的制约

微细粒钛铁矿的回收制约着我国攀西地区钛资源的高效开发利用。四川某矿业公司的斜板溢流原矿属辉石、橄榄石混合型钛铁矿,且粒度极细,-19 μm产率为79.22％,其中TiO2分布率为87.54％。研究结果表明,预先采用强磁选可有效消除部分超微细粒钛辉石、橄榄石等易浮杂质对浮选分离的不利影响,磁选精矿通过一次粗选五次精选一次精扫选流程,可获得钛精矿产率为21.85％,TiO2品位为47.44％,回收率为62.89％的良好指标,为矿山高效利用钛资源提供了合理的技术方案。     

风化钛铁矿可选性试验研究

云南某地风化钛铁矿以钛铁矿及钛磁铁矿为主，属风化严重砂矿。从优化选别流程出发，针对矿石性质，采用溜槽粗选抛尾，磁选除铁，摇床富集粗钛精矿及粗钛精矿再磨再选的流程，最终获得了钛精矿品位为47．96％，回收率为72．85％的技术经济指标。     

甘肃大滩某低品位钛铁矿石选矿试验

甘肃大滩某低品位钛铁矿主要有价元素为铁和钛,TFe品位为12.07%,TiO₂含量为5.56%,有害元素硫、磷含量较低。钛主要分布在钛铁矿中,分布率为81.82%,是回收的主要目的矿物。为确定该资源的合理开发利用方案,对其进行了磁选-浮选试验研究。结果表明,原矿磨细至-0.074 mm占38%,在粗选磁场强度为605.1 kA/m、精选磁场强度为565.3 kA/m条件下,经1粗1精磁选可以获得TiO₂品位为18.13%、对原矿回收率为76.79%的磁选精矿,磁选精矿采用自主复配合成的高效捕收剂EMG和新型抑制剂SF-101经1粗2精1扫闭路浮选试验可以获得TiO₂品位47.46%、回收率88.08%的钛精矿,对原矿回收率为67.63%,可以为该钛铁矿的选别提供借鉴。     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

Current situation and future trend of China rare earth luminescent materialindustry(continued)

<正>Developing ecological lighting source The world is facing the big problem of energy shortage today and the contradiction between economy development and environmental protection is worsened.Therefore,people are more likely to choose an ecological light source that is more energy efficient and environmental friendly.The choice provides great opportunity for the development of rare earth optical material industry in China.The concept of green lighting positions rare earth luminescent material as a leading player in illumination market.The light source of both rare earth luminescent lamp and LED lamp is ecological and energy saving.This is why     

Galaxy Magnets achieved the net profit of 34.02 million yuan in the first six months of 2014

正Galaxy Magnet announced its financial results for the first half of 2014 on August 14.For the first six months ended on 30 June 2014,Galaxy Magnet achieved operation income of RMB 182.3 million,up8.40% over the same period of 2013,and the net profit attributable to the shareholders of the listed company of 34.02 million yuan,increasing 35.49% over the same period of last year.Stable performance increase was led by development of new customers and application market of magnets.     

Rare Earth Application in Steel in China

<正>China has rich rare earth resources.Output of rare earth and steel in China ranks the top first in the world.However,there is still certain distance between the steel produced in China and developed countries from the point of varieties and quality.China still has to import some types of steel.Improving the quality should be emphasiZed in future development of steel industry in China.Rare earth can be used to upgrade traditional steel     

China rare earth market review

正November 21~30,2014Due to weak demand from downstream industries,transactions of rare earth in Chinese domestic market were inactive.It was difficult to sell any rare earth products except for dysprosium oxide and terbium oxide.Suppliers lost confidence in recent market.Demand for rare earth products was soft.Consumers continued to take a wait-and-see attitude.Rare earth export market remained slow.     

稀散金属产业的观察与思考

分析了近年来国内外稀散金属产业的生产、应用、资源与市场状况.铟锡氧化物靶材、砷化镓晶片、锗红外材料、铼高温合金和硒在电解锰及玻璃的应用等已成为稀散金属的主要应用领域.稀散金属的产量快速增长达到历史高位而导致了市场的失衡.以GaInP_2/GaAs/Ge,CIGS和CdTe为代表的非硅系太阳能电池是稀散金属的新兴应用领域,将给稀散金属带来日益增长的需求.     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

2014 second batch of rare earth quota released

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