板块地面砖施工及质量控制

板块地砖以其较好的装饰性能,平整和耐磨损的使用功能,价格和品种的可选择性,而被广泛采用。本文对于板块地砖基层做法和铺贴准备、排砖设计和工艺流程、铺贴地砖操作及质量标准、铺贴地砖细部处理和施工质量管理控制,做了详细的介绍。     

再生铜行业污染监测、物质流分析及其防控策略

简要介绍我国再生铜冶炼工艺及污染防治现状,在对国内再生铜主流冶炼工艺进行的实地监测数据的基础上对全流程中需重点关注的元素进行了物质流分析,明确了重金属污染元素的流向和冶炼中的污染节点,并提出了再生铜冶炼工艺污染防治建议。     

铜铅锌多金属共生矿湿法冶金研究进展

介绍了铜铅锌多金属矿的开发利用现状,对铜铅锌多金属矿的处理工艺进行了综述。着重介绍了湿法处理工艺的氯化浸出工艺、碱性浸出工艺、直接加压酸浸工艺、生物浸出工艺,并展望了铜铅锌多金属共生矿分离技术发展前景。     

钼矿选矿工艺发展现状

原生钼和共生钼是钼资源的主要来源,本文据此叙述了单一钼矿和铜钼矿的选矿方法。单一钼矿典型的选矿工艺是粗磨粗选-再磨再选,而铜钼矿分选主要采用混合浮选-铜钼分离的方法,即先通过粗选得到铜钼粗精矿,然后从铜钼粗精矿中分离铜和钼。并介绍了国内外主要钼选矿厂的选矿工艺。     

黄铜矿、方铅矿分离研究现状及进展

铜铅分离是复杂硫化矿选矿的难题之一.本文归纳了黄铜矿、方铅矿难以分离的原因,介绍了现阶段铜铅硫化矿浮选分离的工艺流程,总结了铜铅浮选分离的药剂制度和研究进展,并指出新型方铅矿抑制剂的研发、电位调控浮选工艺的完善和多种分离工艺联合使用是未来铜铅分离研究的重点.     

西藏某铜多金属矿选矿工艺优化试验研究

对西藏某铜多金属矿选矿厂现有生产流程进行考查,从原矿工艺矿物学分析入手,通过浮选工艺优化条件试验,系统查明了影响铜精矿品质的关键因素,设计并提出了新的合理工艺流程。经工艺优化后可获得含铜20.66%,铜回收率79.81%的铜精矿产品,浮选尾矿中含铜0.21%且主要为氧化铜矿物。     

铜钼矿浮选研究现状与进展

详细介绍了目前国内外铜钼矿的资源情况,分别对铜钼矿的选别工艺--混合浮选、等可浮选、优先浮选三大浮选工艺进行了综述。总结了铜钼的捕收剂以及黄铜矿的抑制剂的应用现状,并提出铜钼分离的未来发展方向。     

高压醇烷化工艺与铜洗精制工艺的比较

河北金万泰原料气精制工艺有铜洗精制工艺和高压醇烷化工艺,对2种工艺进行了比较。提出了铜洗精制工艺存在辅料消耗、铜泵及铜液再生能耗高及铜洗精制污染环境的缺点,而高压醇烷化工艺节约了物耗和能耗,降低了成本,氨合成原料气精制度高,系统运行稳定及不污染环境等优点,较铜洗精制工艺在经济性、环保等各方面优势明显。     

西藏甲玛铜钼矿浮选试验研究

根据西藏甲玛铜钼矿石的共生嵌布状况及特点,制定了铜钼混合浮选—铜钼分离的工艺试验流程。铜钼混合浮选采用常规浮选药剂,铜钼分离采用自行研发的低毒高效铜抑制剂HX,通过大量的条件试验,确定了铜钼混合浮选—铜钼分离的最佳工艺条件,并进行了全流程闭路试验,最终获得钼精矿钼品位48.49%、钼回收率86.95%,铜精矿铜品位32.23%、铜回收率95.19%的良好指标。     

西藏某铜钼矿石浮选试验研究

根据西藏某铜钼矿石的共生嵌布状况及特点,制定了铜钼混合浮选—铜钼分离的工艺试验流程。铜钼混合浮选采用常规浮选药剂,铜钼分离采用自行研发的低毒高效铜抑制剂HX-1,通过大量的条件试验,确定了铜钼混合浮选—铜钼分离的最佳工艺条件,并进行了全流程闭路试验,最终获得钼精矿钼品位48.49%、钼回收率86.95%;铜精矿铜品位32.23%、铜回收率95.19%的良好指标。     

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     

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.     

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     

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     

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.     

Brief news

正Corun invested another 50 million yuan in power battery for HEV Hunan Corun announced on 27 June that they had signed the cooperation agreement to jointly built Corun(Shaoxing)Autos Power Battery System Co.,Ltd.in Shaoxing Binhai New City.According to the announcement,total registered     

铜熔炼中锍品位对杂质元素分配行为的影响

借助于多相、多成分系统中平衡计算的手段，开发出微量元素砷、锑、铋及伴生元素铅、锌等在铜熔炼中分配行为的计算机模型。利用该模型对铜熔炼过程进行计算机模拟，分析了冰铜品位对砷、锑、铋、铅和锌等杂质元素的分压、活度系数及它们在冰铜、炉渣和气相中分配率的影响，并讨论其热力学分析结果对生产实践的指导意义。     

New energy vehicle:an opportunity for rare earth magnets

<正>Extracted from Securities Guide 1.Popularity of new energy vehicles—an irresistible market trend1.1 Progress of new energy vehicles Chinese Premier Li Keqiang said recently on a visit to Xi'an BYD Autos that new energy vehicles,especially new energy bus,can lessen environment and noise pollution.He encouraged the use of new