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J. Cent. South Univ. Technol. (2008) 15: 20-24 DOI: 10.1007/s11771-008-0005-z Resistance optimization of flexes in aluminum reduction cells LI Jie(李 劼), LIU Jie(刘 杰), LIU Wei(刘 伟... connecting with the cathode bus bar in aluminum reduction cells were generalized as three modes. In each mode the universal method to select proper resistivity of the flexes was induced respectively to insure......
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with red mud of different chemical compositions as well as phase components [4-7], such as high pressure hydro-chemistry method[8], reduction roasting[9-10], direct magnetic separation[11]. As far... at high temperature and low alumina concentration in the resultant solution after leaching. The main purpose of reduction roasting and direct magnetic separation is to recover ferric oxide from red mud......
Ti-chang, GAO En-xia, WANG Xiao-ping. Effect of high-temperature phase transition of serpentine minerals on direct reduction roasting of laterite nickel ore[J]. The Chinese Journal of Nonferrous Metals... properties and their influence mechanism on direct reduction roasting[J]. Journal of University of Science and Technology Beijing, 2014, 36(11): 1448-1455. [9] LI Bo, WANG Hua, WEI Yong-gang. The reduction......
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) on zinc leaching rate at different roasting time 图3 700 ℃焙烧不同焙烧时间还原焙砂的XRD谱 Fig. 3 XRD patterns of reduction roasted zinc at 700 ℃ for various time 2.2 碱性浸出工艺 2.2.1 还原焙砂碱性浸出 为.... WANG Ji-ming, PENG Bing, CHAI Li-yuan, LI Mi, PENG Ning. Recovery of iron from zinc leaching residues by reduction roasting and magnetic separation process[J]. The Chinese Journal of Nonferrous Metals......
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, the random PRI signal associated with compressed sensing (CS) theory was introduced for aliasing reduction to obtain high resolution images of fast rotating targets. To circumvent the large-scale dictionary and high computational complexity problem arising from direct application of CS theory, the low resolution image was firstly generated by applying a modified generalized Radon transform......
; Abstract: Several groups of direct shear tests of Nanning expansive soil samples were carried out by improved direct shear apparatus. The results of the characteristics of the ultimate shear stress and residual shear stress at the interface of expansive soil-structure are presented as follows......
prepared by molten body transitional foaming process. The sound reduction index(R) of Al-Si closed-cell aluminum foam bare boards was investigated experimentally under different frequencies (100-4 000 Hz). It is found that sound reduction index(R) is small under low frequencies, large under high frequencies and is controlled by different mechanisms. The sound insulation property basically conforms......