共搜索到28100条信息,每页显示10条信息,共2810页。用时:0小时0分0秒296毫秒
Preparation of primary Al-Si alloy from bauxite tailings by carbothermal reduction process YANG Dong(杨 栋), FENG Nai-xiang(冯乃祥), WANG Yao-wu(王耀武), WU Xiao-lei(武小雷) School of Materials... be the best one to interpret the reaction process. Key words: primary Al-Si alloy; bauxite tailings; carbothermal reduction process; reduction mechanism  ......
NO_x reduction in the sintering processYan-guang Chen1,2),Zhan-cheng Guo1,3),Zhi Wang1),Gen-sheng Feng3) 1) State Key Laboratory of Multiphase Complex System,Institute of Process Engineering,Chinese... Metallurgy,University of Science and Technology Beijing,Beijing 100083,China摘 要:A new process,NOx reduction with recycling flue gas and modifying coke breeze......
Carbothermal reduction process of the Fe-Cr-O systemYan-ling Zhang,Yang Liu,Wen-jie WeiState Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing摘 要:reduction rate,and the residual carbon content strongly depends on nC:nO.With regard to the phases present in products during the reaction process,metal carbides tend to form......
, and reductant content on the reduction process. PENG et al [7] simulated the reduction of Cr2O3 in dust by using Cr2O3, carbon, CaO and iron powder as the raw materials and suggested that, in the initial stage, the reduction process was probably controlled by a chemical reaction, whereas it was determined by the diffusion of carbon in the final stage. ZHANG et al [13] investigated the thermodynamic......
A reduction approach to prepare ZnSe nanocrystallites JIANG Hai-qing(姜海青)1, 2, CHE Jun(车 俊)2, LI Zhi-min(李智敏)1, YAO Xi(姚 熹)2 1. School of Technical Physics, Xidian University, Xi’an 710071, China... nanocrystallites powders were successfully prepared by reduction method with H2SeO4 or H2SeO3 as selenium source and Zn(Ac)2·H2O as zinc source. The reaction mechanism was also discussed through XRD......
J. Cent. South Univ. (2016) 23: 2792-2799 DOI: 10.1007/s11771-016-3342-3 Swelling behavior of hot preheated pellets in reduction roasting process Han Gui-hong(韩桂洪)1, Zhang Duo(张多)1, Huang Yan-fang(黄... 410083, China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: One kind of facile coal-based direct reduction process is using hot preheated pellets for reduction......
......
Manganese extraction from high-iron-content manganese oxide ores by selective reduction roasting-acid leaching process using black charcoal as reductantZHANG Yuan-bo(张元波), ZHAO Yi(赵熠), YOU Zhi-xiong(游志雄), DUAN Dao-xian(段道显), LI Guang-hui(李光辉), JIANG Tao(姜涛) (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China)Abstract:Reduction roasting-acid......
concentrate was controlled by interface chemical reaction and the apparent activation energy was 67.719 kJ/mol. The mineral phase transformation during the reduction process can be described as follows... process of the pre-oxidized vanadium-titanium magnetite concentrate at 1050 °C for 60 min. The poor reducibility of iron in M3O5 solid solutions is the main reason to limit the reduction property of pre......
J. Cent. South Univ. (2021) 28: 690-698 DOI: https://doi.org/10.1007/s11771-021-4638-5 Reducing process of sinter in COREX shaft furnace and influence of sinter proportion on reduction properties... into the composite burden in China. This work explored the reducing process of sinter in COREX shaft furnace to clarify its reduction properties change and then the effect of sinter proportion on metallurgical......