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Electrochemical Reduction of Yttrium Ions段淑贞,赵立忠,魏寿昆摘 要:<正> The cathodic electrode process of Y3+ ions on the Mo electrode in the LiCl-KCl molten... voltammogram.Theresults show that the reduction mechanism of Y3+ ion is Y3++3e=Y,a simple one-step process.The cathodicprocess is very close to a reversible process under lower scanning rates......
Trans. Nonferrous Met. Soc. China 23(2013) 3808-3815 Thermodynamics and kinetics of carbothermal reduction of zinc ferrite by microwave heating Xin WANG1,2,3, Da-jin YANG4, Shao-hua JU1,2,3, Jin-hui... Metallurgy Research Institute, Kunming 650093, China Received 21 September 2012; accepted 11 October 2013 Abstract: The kinetics of carbon reduction of ZnFe2O4 in the temperature range of 550-950 °C......
consumption was thus significantly lower than that by Hall-Héroult process. Replacement of the electrochemical process by carbothermic reduction of Al2O3 would decrease the total greenhouse gas... Aluminum production by carbothermo-chlorination reduction of alumina in vacuum YUAN Hai-bin(袁海滨)1, 2, 3, YANG Bin(杨 斌) 1, 2, 3, XU Bao-qiang(徐宝强) 1, 2, 3, YU Qing-chun(郁青春) 1, 2, 3, FENG Yue......
is slow. Furthermore, the process lacks the flexibility to be scaled up, as they are based on electrochemical reduction. OKABE et al [14] and XU et al [15] investigated a new calcium vapor reduction... materials have no physical contact with them. Titanium powders with 99% purity were obtained by this way. Furthermore, the amount of CaCl2 can be reduced, compared to the direct electrochemical reduction......
Preparation of Ti by direct electrochemical reduction of solid TiO2 and its reaction mechanism NIE Xin-miao(聂新苗), DONG Ling-yan(董凌燕), BAI Chen-guang(白晨光), CHEN Deng-fu(陈登福), QIU Gui-bao(邱贵宝) College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China Received 10 April 2006; accepted 25 April 2006 Abstract: An electrochemical method for the direct reduction......
Trans. Nonferrous Met. Soc. China 25(2015) 2744-2752 Selective reduction process of zinc ferrite and its application in treatment of zinc leaching residues Gang YU1, Ning PENG2, Lan ZHOU3, Yan-jie.... A novel selective reduction roasting-leaching process was proposed to separate zinc and iron from zinc leaching residue which contains zinc ferrite. The thermodynamic analysis was employed to determine......
): 1455-1461. WANG Ji-ming, PENG Bing, CHAI Li-yuan, LI Mi, PENG Ning. Recovery iron from zinc leaching residues by reduction roasting and magnetic separation process[J]. The Chinese Journal... leaching residue[J]. Minerals Engineering, 2014, 55: 103-110. [22] LIU Wei, HAN Jun-wei, QIN Wen-qing, CHAI Li-yuan, HOU Dong-ke, KONG Yan. Reduction roasting of high iron-bearing zinc calcine......
Fe2O3-Na2CO3-C体系还原过程热重曲线的影响(10 ℃/min) Fig. 3 Effect of temperature on mass loss of Fe2O3-Na2CO3-C system during reduction (10 ℃/min) 由图3可知,在热重分析过程中,Fe2O3和Na2O·Fe2O3碳热还原反应的开始温度分别约为576和573 ℃,如图中曲线1和2所示,另外从质量损... metallization rate and reduction duration of Fe2O3 at 900 ℃ 3.2 Na2O·Fe2O3在含铁尖晶石矿物还原过程中的作用 湿法炼锌厂锌浸出渣和铬盐生产所排放出的铬渣等,铁含量高达25%以上,主要赋存于含铁尖晶石如铁酸锌尖晶石,铁酸镁尖晶石和铁铬酸镁尖晶石中.相关热力学研究表明[14-15],这些含铁尖晶石性质稳定,通常需较高温度才能分解.因此,研......
conductivity and good thermal stability by hydrogen arc discharge exfoliation [J]. ACS Nano, 2009, 3(2): 411-417. [34] RAMESHA G K, SAMPATH S. Electrochemical reduction of oriented graphene oxide films...J. Cent. South Univ. (2016) 23: 1823-1830 DOI: 10.1007/s11771-016-3236-4 Tuning microstructure and surface chemistry of reduced graphene oxide by mild reduction LENG Xian(冷娴), LIU Ru-tie(刘如铁), ZOU......
A strength reduction method based on double reduction parameters and its applicationYUAN Wei(袁维), BAI Bing(白冰), LI Xiao-chun(李小春), WANG Hai-bin(汪海滨) (State Key Laboratory of Geomechanics and Geotechnical Engineering (Institute of Rock and Soil Mechanics, Chinese Academy of Sciences), Wuhan 430071, China)Abstract:In the traditional strength reduction method, the cohesion and the friction angle......