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Electronic Structure and Properties Ni Metal* Abstract:By means of one-atom state method, the electronic structure of Ni metal has been determined to be [Ar](3dn)2.69(3dm)0.66(3dc)5.24(4sc)0.25(4sf)1.16, by which the potential curve, lattice constant, cohesive energy, various elastic moduli and t......
Abstract: In this part, structural relationship and conversion between two-dimensional (2D) nanosheets and one-dimensional (1D) nanotubes are reviewed. Nanotubes are spontaneously formed upon exfoliation of certain layered materials with a non-centrosymmetric or particular structure, such as K4Nb6O1......
沃尔费汉普顿金属有限公司采用机械分离电线, 电缆包皮和导体, 也是当前国外使用最普遍的方法, 即滚筒式破碎分离法, 电线, 电缆首先剪切为长度不超过300 mm的小段, 然后人工输入转鼓切碎机.在转鼓切碎机内电缆被切碎脱皮, 碎屑从转鼓刀片底部直径5 mm的筛孔漏出.转鼓转速为3 000 r/min, 转鼓直径为762 mm, 转鼓刀片与底部筛板的间隙为1.5 mn, 转鼓切碎机的处理能力为1 t/h, 电机功率为30 kW.从筛孔漏出的碎屑用皮带送至料仓, 再通过振动给料机送至摇床分离出铜屑, 混合物和塑料(或橡胶)3部分.铜屑送铜冶炼厂处理或生产出硫酸铜.混合物返回转鼓切碎机处理; 塑......
Recovery of Metal from Waste Printed Circuit Board Zhao Yaomin Cao Yijun Wen Xuefeng (School of Chemical Engineering and Science, China University of Mining and Technology,Xuzhou 221008,P.R.China) Abstract:A simple,efficient method through hammer mill and straight-duct pneumatic separ......
Heavy metal resistance of two Acidithiobacillus ferrooxidans strains Qi Hu, Xueling Wua,*, Huaqun Yin, Xueduan Liub,* School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, China a xueling0741@yahoo, b xueduanliu@sina Keywords: Acidithiobacillu......
Roles of metal cations in pellicle formation of Shewanella oneidensis Yili Liang1,2, Haichun Gao1,3, Xueduan Liu1, Guanzhou Qiu1 1 School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, China 2 Institute for Environmental Genomics and Department of Botany ......
Synthesis of CaO nanoparticles by microwave to treat heavy metal Arup Roy, Jayanta Bhattacharya Department of Mining Engineering, Indian Institute of Technology, Kharagpur-721302, India Keywords: CaO; nanoparticle; XRD; heavy metal ions; water treatment Abstract: Widespread concern over the cu......
纳米MoS2的制备方法和技术多年来一直是润滑和催化领域的研究热点, 近年来随着研究手段和制备技术的拓宽, 研究者开发了一系列新的合成方法, 如水热法, 溶液法和表面活性剂促助法等.这些方法克服了传统高温合成法形貌不易控制的缺点, 但也存在一定的问题(如反应压力较高, 结晶较差, 杂质偏多等), 寻求更加简单易行的新方法依旧是当前MoS2制备技术的研究热点. ......
三菱金属公司采用的熔炼-吹炼工艺处理的铜废料范围很大, 小颗粒废料与铜精矿一起由旋转喷枪加入熔炼炉, 大块料通过炉顶和炉墙溜槽加入熔炼炉和吹炼炉.三菱吹炼过程大量放热, 可允许处理较多铜废料.最大块的废料是残极和阳极模, 加入阳极炉处理. 日本的小坂冶炼厂在闪速炉中处理细粒铜废料, 但加入量不能太多.事实上, 电子废料由于含有大量塑料, 用熔炼炉处理比转炉好, 理由如下: 1 塑料有热值, 可为熔炼提供热. 2 当间断燃烧时, 塑料往往会产生烟和其他颗粒物, 它们会由转炉口冒出, 有害环境卫生.而在密封的闪速炉内燃烧时, 它们容易在收尘系统中捕集.在熔炼炉中处理非塑料包覆的铜废料数......
Genomic islands and their importance in metal resistance for biomining bacteria Luis H. Orellanaa, Claudio A. Navarrob, Carlos A. Jerezc Laboratory of Molecular Microbiology and Biotechnology, Department of Biology and Millennium Institute for Cell Dynamics and Biotechnology, Faculty of Sciences......