铝土矿浮选脱硅研究进展

回顾了铝土矿选矿脱硅提高铝硅比的历史发展与研究现状，分析了我国铝土矿选矿脱硅所面临的困难，并指出了我国铝土矿选矿今后的研究方向。     

我国铝土矿资源及其选矿技术进展

阐述了我国铝土矿的资源储量与进口情况,介绍了我国铝土矿资源类型与特点,并分析了铝土矿资源开发存在的问题。针对我国铝土矿资源较为丰富但质量差的特点,总结了所采用的铝土矿选矿方法。并从铝土矿选矿脱硅、高铁铝土矿铝铁分离与高硫铝土矿脱硫、铝土矿选矿尾矿和废水处理三个方面分析了目前铝土矿选矿存在的工艺技术问题。建议立足国内资源,淘汰落后产能,推进铝土矿选矿与尾矿和赤泥的资源化利用研究,并加大利用国外铝土矿资源力度以及开发利用其他铝资源。      

铝土矿选矿脱硅技术研究现状及前景展望

随着我国铝土矿资源的消耗日益增加,优质铝土矿资源的匮乏,低品质铝土矿的开发和利用是未来铝土矿选矿的重点方向。因此,研究高效、环保、低能耗的铝土矿脱硅工艺是选矿工作者的主要目标。本文系统的介绍了生物选矿脱硅、化学选矿脱硅和物理选矿脱硅等选矿脱硅技术,对近年来研究的铝土矿脱硅技术的脱硅效果分别进行了评述,并对目前几种有前景的脱硅工艺进行了重点讨论。     

我国铝土矿资源特征及选矿脱硅技术

介绍了我国铝土矿资源的特征及目前现有的化学选矿脱硅法、物理选矿脱硅法以及生物法等选矿脱硅技术,并以我国铝土矿资源的特征为基础,探讨了适用于我国铝土矿资源的选矿脱硅技术。针对我国铝土矿资源较为丰富,但多为含硅较高的水硬铝石型,为提高铝土矿品位,建议采用正浮选选矿脱硅技术,以期为高效开发利用铝土矿提供参考。     

铝土矿的选矿实践

运用我国氧化铝工业发展的最新数据,分析了铝土矿选矿脱硅的重要性和目标;根据作者长期从事铝土矿选矿理论研究与实践工作得到的认识,论述了铝土矿矿石性质与选矿的关系;介绍了作者所研发的“铝土矿选择性磨矿-聚团浮选脱硅”工艺及其在中州铝业公司工业应用的效果;探讨了铝土矿选矿脱硅实践中存在的问题与今后的工作方向。     

铝土矿选矿研究现状与孝义地区的建厂可行性

简介了铝土矿选矿技术的现状，阐述了在孝义地区建设铝土矿选矿厂的便利条件，认为在该地区建设铝土矿选厂是可行的，而且是必要的。     

铝土矿反浮选脱硅研究的进展

回顾了铝土矿反浮选脱硅研究的现状和进展，指出了今后我国铝土矿选矿的研究方向。     

铝土矿选矿脱硅指标的影响因素分析

对 1999年铝土矿选矿脱硅工业试验和 2 0 0 1年铝土矿选矿脱硅工业试生产结果进行比较 ,从铝土矿矿物组成、磨矿、浮选等方面分析其对选矿指标的影响 ,指出造成两次选矿指标差异的原因。     

铝土矿选矿尾矿资源化利用途径探讨

分析了铝土矿选矿尾矿的理化特性,介绍了铝土矿选矿尾矿综合利用研究进展,探讨了铝土矿选矿尾矿在建筑材料、化工产品、井下充填材料、有价组分提取等方面的资源化利用途径,指出了先回收有用组分,再作为建材、化工工业原料的资源化利用思路.     

焦作市低品位铝土矿资源特征及选矿可行性

焦作市铝土矿储量极为丰富,但以低品位矿石为主,必须经过选矿富集,方可达到利用之目的.对不同类型的铝土矿进行了选矿可行性试验评价,铝土矿经过选矿处理后,所得精矿的质量有很大提高,其A/S提高近一倍,使铝土矿中的低品位矿石得到利用,充分发挥了矿产资源的经济效益和社会效益.     

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     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared     

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     

2014 second batch of rare earth quota released

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矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586