优化铁精矿品位的意义与方法

1优化铁精矿品位的必要性和意义合理提高铁精矿品位，可以相应地提高烧结矿（或球团矿）的品位，从而影响高炉冶炼。在炼铁行业有个大致的说法：火炉品位每提高10％，可降低焦比约2％，提高高炉利用系数约3％，因而提高冶炼的效益。70年代末，当时少数矿山的铁精矿品位可高达68     

模糊数学综合评判法在确定合理精矿品位中的应用

铁精矿品位是冶金矿山提高经济效益的一项重要指标,合理铁精矿品位的确定是一个综合的技术经济问题。本文结合某选矿厂铁精矿的生产和加工的具体情况,探讨了合理精矿品位的确定问题．     

提高铁矿品位途径的探讨

针对铁精矿品位持续偏低的问题，从原矿控制、矿山技术改造和强化管理等方面，探索出了一条提高铁精矿品位的途径，产生了较大的经济效益和社会效益。     

铁精矿品位的多目标优化决策

合理铁精矿品位的确定是一个综合技术的经济问题。俄根据我国铁矿资源特点和国情，就合理铁精矿品位的概念，精矿品位与烧结，炼铁的关系，多目标优化决策的重要意义提出了看法，并通过一个实例阐述了合理铁放品位多目标优化决策的方法。     

铁精矿铁品位与二氧化硅含量关系的研究

铁精矿质量只用铁品位来衡量是不完全的，应该用TFe、SiO2等含量来评价。针对铁精矿铁品位与二氧化硅含量关系，对鞍钢大孤山选厂、东鞍山烧结厂、齐大山选厂的铁精矿物相、所有铁矿物的综合理论品位及综合铁精矿分析情况进行了分析研究，得出了大孤山选厂、东鞍山烧结厂、齐大山选厂的铁精矿品位与铁矿物含量关系式及铁精矿品位与二氧化硅含量的关系式，对今后指导矿山的生产，具有重要意义。     

采用高效选矿技术 提高和优化铁精矿品位

从宏观角度出发，阐述了提高和优化铁精矿品位指标的必要性，技术途径及优化研究的思路。     

低品位铁矿床开采降低矿石贫化率的技术措施

低品位铁矿床开采由于掘进岩石混入,导致矿石品位更低、选矿比上升、铁精矿成本上升、企业经济效益大幅度下降等问题,从矿山设计、管理等方面入手,根据矿山建设和生产实际运行状况,提出了提高矿石品位、降低矿石贫化率的建议。     

提高铁精矿品位途径的探讨

针对铁精矿品位持续偏低的问题,从原矿控制、矿山技术改造和强化管理等方面,探索出了一条提高铁精矿品位的途径,产生了较大的经济效益和社会效益.     

白云鄂博铁矿磁铁矿石边界品位的分析研究

通过对白云鄂博铁矿资源状况及利用情况的分析,应用“白云鄂博铁矿矿石边界品位优化系统”,提出了随着铁精矿市场价格的变化,实时调整和优化矿山磁铁矿石边界品位指标的建议,使矿产资源得到充分利用,以获得最佳经济效益。     

提高铁精矿铁品位降低SiO2含量的研究及应用

采用阳离子反浮选-磁选联合工艺，对弓长岭选矿厂磁选精矿进行提铁降硅的研究和试验。一年多的工业试验和运行结果看，工艺流程顺行，生产指标稳定，浮选铁精矿品位达到68．89％、SiO3．90％，铁回收率98．50％。实现了矿山产品与炼铁技术经济指标优化及系统效益最大化，对同类型选矿厂具有指导意义。     

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 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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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     

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.     

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.