共搜索到18939条信息,每页显示10条信息,共1894页。用时:0小时0分0秒328毫秒
for the comprehensive utilization of low-grade ludwigite ore was proposed, in which magnesium was extracted by metallizing reduction-magnetic separation, sulfuric acid leaching and ethanol precipitation operation. Meanwhile, iron-rich product, silicon-rich product and boron-rich product were obtained, respectively. In the process of metallizing reduction-magnetic separation, 94.6% of magnesium was enriched......
:TF 821; O 441.4 文献标识码:A Simulation of heat balance in 5 kA grade aluminum reduction cell with inert anodes LI Jie, WANG Zhi-gang, ZHANG Hong-liang, LAI Yan-qing, XU Yu-jie (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The cell profile and heat balance of 5 kA grade aluminum reduction cell......
,硅矿物与硫酸钠反应生成非磁性物质铝硅酸钠,经磁选后进入非磁性物,从而实现铝铁的高效分离. 关键词:褐铁矿;钠盐;铝;还原焙烧;磁选 中图分类号:TD982 文献标识码:A Novel process for treatment of high-aluminum limonite ore by reduction roasting... content of 8.16% (mass fraction) was studied by reduction roasting with addition of sodium salt followed by magnetic-separation. The results show that metallic iron powder with total iron grade of 91.00......
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......
......
J. Cent. South Univ. (2016) 23: 1318-1325 DOI: 10.1007/s11771-016-3182-1 Reduction mechanism of Fe2O3-Cr2O3-NiO system by carbon ZHANG Yan-ling(张延玲), GUO Wen-ming(郭文明), LIU Yang(刘洋), JIA Xin-lei(贾昕磊...: Isothermal experiments on the reduction of Fe2O3-Cr2O3-NiO (molar ratio of Fe-to-Cr-to-Ni is 3:2:2) by graphite were carried out at 1350–1550°C, and effects of various factors on reduction degree were......
......
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......
码:A Effects of sodium-salt on Al-Fe separation by reduction roasting for high-aluminum content limonite JIANG Tao, LIU Mu-dan, LI Guang-hui, SUN Na, ZENG Jing-hua, QIU Guan-zhou (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China) Abstract: The effects of different sodium salts on Al-Fe separation in limonite were studied during reduction......
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... and bituminite content on the preparation of primary Al-Si alloy by carbothermal reduction of bauxite tailings were investigated by XRD,XRF,infrared absorption carbon-sulfur analysis unit and SEM coupled......