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Eddy-current induced magnetic separation of nonferrous metals from solid wastes Huifen Zhang1, a , Luzheng Chen2, b 1 Department of Land Resource Engineering, Yunnan Tin College of Vocation and Technology, Gejiu 661000, China 2 Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China a zank800@126.com; b chluzheng@hotmail.com Keywords: Eddy-current induced magnetic separation; Recycle of metals; Solid wastes Abstract.
The material is slided down from the top of feed slider and an eddy current is induced in nonferrous metals in the material; this eddy current produces a negative magnetic field to the magnet, so that a repulsive force is acted on the metals, resulting to the separation of the metals from the material.
When a batch of material is finished, a metal product and nonmetallic product are respectively achieved.
International Journal of Mineral Processing. 2005, 78 (1): 22~30

College of Material Science and Engineering, Xi’an Shiyou University, 710065, Xi’an. 2.
Introduction The multi-phase alloys are the most popular engineering materials [1], where one phase acts as the matrix and the others serve as the reinforcing elements.
Predication of solidification path Some assumptions are introduced into the models as the following: 1) The diffusion of solute in solid is neglected, and the diffusion is the only way of the solute transmit in liquid; 2) The thermodynamic equilibrium are taken between the solid and liquid concentration and temperature of solid/liquid interface during solidification; 3) The grain is spherical and there is no material exchange with another grain.
The Chinese Journal of Nonferrous Metals, 2000, 10, 688.

Niger keeping in view the statistical analysis that shows its importance and usage in Pakistan and also the need to put up and industrial scale plant, having all the raw materials available in great quantities within the country and at a very low cost.
GENERAL PRODUCTION OF CITRIC ACID: There is no general classification of raw materials for CA in such that it can be derived both from Figure 2: Comparison of exports v/s production of Molasses Molasses and Starch.
Maddox, Citric acid production in a bubble-column reactor using cells of the yeast Candida guilliermondii immobilized by adsorption onto sawdust, Enzyme and Microbial Technology 19:343-347, 1996 [5] Maria Papagianni, Review,Fungal morphology and metabolite production in submerged mycelial processes, Biotechnology Advances 22 (2004) 189–259 [6] Pandey.P, Putatunda S, Dewangan L, Pawar V.S and Belorkar S.A, Studies on citric acid production by Aspergillus niger in batch fermentation, Recent Research in Science and Technology 2013, 5(2): 66-67 ISSN: 2076-5061 [7] Bekir Sitki Cevrimli, Ergin Kariptas, Ahmet Yasar, Mustafa Yigitoglu, Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor  [8] http://renewablechemicals.agra-net.com/2011/10/chinese-citric-acid-industry-begins-to-consolidate/ [9] M.
O, Production of citric acid by Aspergillus niger using pineapple waste, Malaysian Journal of Microbiology, Vol 6(2) 2010, pp. 161-165 [12] D.

Optimal Design on Reduction Device based on the most Small Gear-Worm Jie Yu1,a, Pei-si Zhong2,b 1 College of mechanical engineering, Shandong University of Technology ,Zibo255000,China; 2 College of mechanical and electronic, Shandong University of Science and Technology, Qingdao 266000,China ayujiezb7@sdut.edu.cn, bpeisizhong@163.com Keywords: Reduction device of gear; Optimal design Abstract.
Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Clem: submitted to Journal of Materials Research (2003) [6] Elidrissi M C, Roney A, Frigon C, et al.

Vibration isolation and noise reduction design of the AH20 motor’s lifting up structure Laiqiang Li1,a, Shuling Wang2,b，Bo Xu1,c 1, School of Energy and Power Engineering, USST, Shanghai, 200093, China 2, School of Material Science and Engineering, USST, Shanghai, 200093, China alaiqiangli@163.com,bwwwusst@163.com, cxubo1027@sina.com Keywords: lifting up structure; vibration; modal analysis; Abstract: Compared with sewing machine driven by traditional match motor, industry sewing machine driven by AH20 motor have economy energy, intelligent degree, install convenience, operation simple and ability completely etc.
The material attribute of each part of the AH20 motor and lifting up structure is shown as Table 1.
Material attribute of each part material Elastic modulus E(GPa) Poisson's ratioμ Density ρ(kg/m3) Baffle, Tighten Bolt 45#steel 210 0.3 7800 Base{TTP}12289 , Pulley{TTP}12289 , End Cover ADC12 71 0.33 2680 Claw{TTP}12289 , Motor Block 6063Al 70 0.33 2690 Rotor 20Cr 208 0.3 7830 Control Box ABS777e 2.5 0.4 1050 Fig.2 Finite element model and it’s first three expansion modal Take all displacement restricted on the tighten bolt and solve the model with Block Lanczos method.
Journal of Experimental Mechanics, 02 ,2008:157-161.

It has been widely used to obtain an optimum strength/material mass ratio for structures under specified load conditions [3].In our case modeling and initial optimization was done in Pro/EngineerTMto save time however AnsysTM is used for final FEM structural analysisto get accurate results as analysis in Pro/EngineerTM is relatively less accurate because of lesser number of nodes generated while meshing the part.
Q345 of steel was used as material of arm and its properties are given in table 1.
Table 1 Properties of the material used Material Density Modulus of elasticity Poisson’s ratio Q345 7.85e-9tonne/mm2 2.1e5 0.3 Forces were taken at the extreme working conditions as shown in fig. 4, whereThesis, The Graduate School of natural and Applied Sciences of Middle East Technical University, May 2005, pp. 1-4, 68-69
Prajapati: submitted to IACSIT International Journal of Engineering and Technology (2011)

MATERIALS AND METHODS Materials.
Acknowledgments We thank the Natural Science Foundation of Zhejiang province (Y4110130) for the Financial Support.
Pingdong, Kinetics of enantioselective hydrogenation to synthesize ethyl ( R)-2-hydroxy-4-phenylbutyrate, CIESC Journal 57 (2006) 46-51 2006

It will be even resulfurization phenomena for the raw materials [2~4].
The iron materials would increase and the smelting state was also much bad.
Table 1 The mass fraction of material components ( % ) Material CaO MgO SiO2 S Lime 87.15 6.4 1.29 0.040 dolomite 47.89 34.57 1.76 0.040 Ore — — 3.62 0.030 We sampled in each process and obtained the proportion of sulfur from various raw material by analyzing the sulfur content of the materials and calculating the material balance, which was shown in Fig. 4.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (50974051).
Journal of Iron and Steel Research, 2011, 23(12): 20~21.

"Dust Testing Practical Skills", China Environmental Science Press, 1990.
When receiving the paper, we assume that the corresponding authors grant us the copyright to use the paper for the book or journal in question.
Color figures are welcome for the online version of the journal.
Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Clem: submitted to Journal of Materials Research (2003) [6] P.G.

Study on Preparation of Zn/Al Double Metal Oxide by Ion Exchange Method WANG Ying1,2,a, LI Yansheng1,b, LI Kai1,c 1 School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, China, 116028; 2 School of Materials Science and Engineering, Dalian Jiaotong University, Dalian, China, 116028 awangying7919@163.com, bhjx@djtu.edu.cn, clk@163.com Keywords: Weak acid ion exchange resin; Double metal oxide; Adsorption; Calcination Abstract.
The reason was that with the increase of Zn/Al molar ratio, there were more ZnO in the product, and compared to Al2O3, ZnO was a kind of material that was easy to form a specific shape.The reason that whisker was observed was that there were channels for ion diffusion in ion exchange resin, and during the calcination ZnO was formed in the channels of ion exchange resin, namely the ion exchange resin had a neat effect on the microstructure of product.
JOURNAL OF ELECTROCHEMISTRY, 2013, 03:256-261.
Journal of Hazardous Materials, 2006, B136: 330-337
The Chinese Journal of Nonferrous Metals,2008,18(4):745-749.