共搜索到2062条信息，每页显示10条信息，共207页。用时：0小时0分0秒495毫秒
成氮化铝.通过热力学计算得到的反应平衡温度与实验得到的氮化铝开始生成温度相吻合. 关键词: 氧化铝;碳热还原反应;氮化铝; 中图分类号: TQ174 收稿日期:1999-11-23 Mechanism and thermodynamics of carbothermal reduction of alumina Abstract: The aluminum nitride synthesized by mechano-chemical activation from carbothermal reduction (CTR) of alumina was investigated. Based on the experimental results, a new mechanism......
for preparing alumina concentrate by thermochemical activation process LUO Jun, LI Guang-hui, RAO Ming-jun, ZHANG Ji-qing, GUO Yu-feng, JIANG Tao (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China) Abstract: Aiming at preparing alumina concentrate from coal-derived pyrite flotation tailing, a desilication technique using thermochemical activation process......
Influence of alumina on mineralogy and environmental properties of zinc-copper smelting slagsSina Mostaghel,Caisa Samuelsson,Bo BjrkmanMinerals and Metals Research Laboratory, Lule University of Technology摘 要:An iron-silicate slag, from a zinc-copper smelting process, and mixtures of this slag with 5wt%, 10wt%, and 15wt% alumina addition were re......
Effect of spinel content on the properties of phosphoric acid bonded high alumina castablesZichun Yang, Hongwei Duan, Lin Li, Shuqin Li, and Wen Ni1)Naval Engineering Univeristy, Wuhan 430033, China2... of fused spinel on the properties of phosphoric acid bonded high alumina castables, samples with different contents of fused spinel were prepared. The results show that when the contents of the fused......
Preparation of High Performance Grccn Alumina Ceramic Balls by Roller Production Waste钟莲云,吴伯麟摘 要:<正>To reuse roller waste as a raw material of high performance green ceramic balls,three kinds of white alumina ceramic balls whose wear resistance were 2-3 times of the best high alumina ceramic ball with 90% Al2O3 were prepared,and the Al2O3 content......
Facile Growth of Porous Hierarchical Structure of ZnO Nanosheets on Alumina Particles via Heterogeneous PrecipitationHamid Tajizadegan1,Majid Jafari1,Mehdi Rashidzadeh2,Reza...="ChDivSummary" name="ChDivSummary">ZnO nanosheets and nanoflakes were grown on alumina particles in the absence of surfactants via heterogeneous precipitation using urea,zinc acetate and bayerite......
Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering LI Xiao-bin(李小斌), XIAO Wei(肖 伟), LIU Wei(刘 伟), LIU Gui-hua(刘桂华), PENG Zhi-hong(彭志宏), ZHOU... generated from alumina production by Bayer process not only threatens the environment but also causes waste of secondary resources. High-iron-content red mud from Bayer process was employed......
Trans. Nonferrous Met. Soc. China 27(2017) 2512-2520 Relationship between alumina mixing characteristics and feeder configurations in aluminum reduction cells Hong-liang ZHANG1,2, Shuai YANG1,2, Jie..., Central South University, Changsha 410083, China Received 20 June 2016; accepted 9 October 2016 Abstract: Because of the increasingly prominent problem of alumina content inhomogeneity in large or super......
......
......
