黄铁矿超细粉磨中的钝化研究

探讨了黄铁矿在超细粉磨过程中的钝化问题，指出在搅拌磨制备FeS2超细粉体时，当球料比5：1、矿浆浓度40％、磨矿时间3h的条件下，加入肋磨剂和缓蚀剂PZ1、PZ3（5‰）时，可获得磨矿细度≤3.5μm的FeS2超细粉体，并分析了缓蚀剂的钝化作用机理。     

基于均匀设计方法的党参湍流超细粉碎试验研究

利用湍流超细粉碎机制取了党参的亚微米级超细粉体,研究了叶轮转速、加料质量、粉碎时间对粉体粒径的影响,对党参的超细粉碎工艺参数进行了优化;分析了造成粉体团聚的原因,结果表明,叶轮转速的提高是引起粉体团聚的主要因素。     

第八届全国粉体工程学术会议暨2002年全国粉体设备-技术-产品交流会第一轮通知

中国粉体工业协会筹备委员会、中国粉体工业信息网、中国粉体技术杂志社和中国选矿学会粉体工程学术委员会主办的第八届全国粉体工程学术会议、2 0 0 2年全国粉体设备 -技术 -产品交流会、首届中日粉体工业交流会将于 2 0 0 2年春天在北京召开。会议主题 :(1)粉体加工及应用技术。涉及破碎与筛分、超细粉碎与分级、纳米超细粉体的应用、干燥、除尘、混合、分散、造粒、给料、料仓、输送、计量、测试、磨介等诸多单元技术发展。(2 )矿物粉体材料的应用。(3)中日粉体工业技术交流。(4 )纳米粉体的应用。(5 )参观第三届国际粉体工业展览会。会…     

天然羟基磷灰石超细粉碎试验研究

通过试验研究,利用小型搅拌磨对羟基磷灰石进行超细粉碎,选择出适合羟基磷灰石超细粉碎的分散剂蔗糖脂,研磨时间为8-12 h,并对小型搅拌磨超细粉碎的粉体进行性能表征。利用小型搅拌磨可以得到粒度分布较窄的粉体样品,d50值为0.781μm,比表面积为19.83 m2/g。     

不同类型磨机对纤维水镁石超细粉碎的试验研究

采用搅拌磨(湿法)和振动磨(干法)两种不同设备，对纤维水镁石(FB)进行超细粉碎试验。试验结果：用振动磨超细FB，产品中位径是搅拌磨的1／5左右，比表面积为搅拌磨的3．6倍左右。实验农明：振动磨对FB超细粉碎效果较好，最佳研磨时间为3h，FB超细粉体的中位径D50为1．53μm，比表面积SA为2．606m^2／g，粒径分布比较集中。     

超细重晶石粉加工过程细磨行为研究

用搅拌磨湿法超细加工,制得了平均粒径〈１μｍ的超细重晶石粉,分析了超细加工过程的细磨行为及粉体物理性质的变化 。     

超细粉碎过程粉体的机械化学变化

文中以滑石粉为研究对象,系统介绍了搅拌磨超细粉碎过程中粉体的机械化学变化,并从粉体的ζ－电位、白度、DTA、润湿热进行了分析;对超细粉碎过程粉体晶体结构的变化和粉体化学键合作用等作了论述,进一步介绍了超细粉碎过程粉体的机械化学的研究方法,以开拓一些新的思路。     

天然羟基磷灰石超细粉碎实验研究

通过实验研究，利用小型搅拌磨对羟基磷灰石进行超细粉碎，选择出适合羟基磷灰石超细粉碎的分散剂蔗糖脂，研磨时间为8-12h，并对小型搅拌磨超细粉碎的粉体进行性能表征。利用小型搅拌磨可以得到粒度分布较窄的粉体样品，d50值为0．781μm，比表面积为19．83m^2／g。     

江苏中远机械设备制造有限公司

<正>中远机械是中国非金属矿工业协会矿物加工利用技术专委会常务理事单位。专业生产大型湿法超细磨、湿法超细研磨机、解聚打散机、超细粉碎机、分级机、破碎机、除尘器等粉体加工设备。是集环保机械、非金属矿物加工机械产品、成套工程设计制造为一体的综合性企业。我公司自主研发的高效超细粉体设备,已获得国家专利(粉体解聚打散机,实用新型专利:201320274325.X),该产品的开发具有国内领先水平,设备特点:能耗低、产量高;粒度还原率高;运行稳定、操作可控性强;维修方便、使用寿命长。可生产加工     

我国超细无机粉体材料的发展大有可为

目前 ,超细粉体的开发受到世界各国的重视 ,英、美、日本等发达国家都拥有专门从事粉体工程研究的高级研究机构 ,各高科技公司重点在精细陶瓷、电子、光学等领域的复合材料。我国从事超细粉体材料的研究机构很多 ,取得了一些成果 ,研究了不少产品如氮化铝、氧化钛、氧化镍 ,但由于种种原因 ,均未见工业化应用的报道。我国无机盐行业在世界上占有重要的地位 ,生产量居世界前列 ,为超细无机粉体材料的发展提供了良好的条件。我国超细无机粉体材料的发展大有可为     

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     

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