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类号:TF821 文献标志码:A Roasting process of mixture of high ferric bauxite and ammonium bisulfate XIN Hai-xia, WU Yan, LIU Shao-ming, ZHAI Yu-chun (School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract: A novel process of roasting high-iron bauxite using ammonium bisulfate was proposed to overcome the defects......
:铬铁矿；铬酸钠；氧化焙烧；动力学 中图分类号:TF111 文献标志码:A Kinetics of chromite ore in oxidation roasting process LI Xiao-bin, QI Tian-gui, PENG Zhi-hong, LIU Gui-hua, ZHOU Qiu-sheng (School... low oxidation rate which impact the chromate production efficiency and chromium recovery rate seriously. To intensify the oxidation roasting process of chromite ore, the oxidation kinetics and its......
residue, a corresponding technology to prepare mangano-manganic oxide was adopted as follows: low temperature sulfating roasting tungsten residue, leaching, removal of impurities in leachate, precipitation of manganese and oxidation of manganese hydroxide. The product was analyzed by SEM and XRD. The results of roasting and leaching show that the recovery of Mn is 88.9% after roasting with 150% excess......
Tin recovery from a low-grade tin middling with high Si content and low Fe content by reduction–sulfurization roasting with anthracite coalJing-cheng Wang1,2,3,Lei Li1,2,3,Yong Yu1,2,31. State Key...="ChDivSummary">A new method for separating and recovering tin from a low-grade tin middling with high Si content and low Fe content by roasting with anthracite coal was researched by studying......
that the fitting model can well describe the actual drying process. Key words: magnetic roasting; artificial magnetite; pellet; drying rate; drying kinetics Cite this article as: ZHANG Han-quan, LIU... of green pellet. Then the drying fitting models of Correction Henderson and Pabis, Lewis, Correction Page (III), Wang and Singh are used to describe the drying kinetics of artificial magnetite green......
, the activation energy △Ea is 60.86 kJ/mol and 35.71 kJ/mol, respectively. Key words: hematite; fluidized magnetization roasting; magnetite; growth kinetics 磁化焙烧是复杂难选赤铁矿石开发利用的重要预处理方法[1-7].流态化焙烧因具有传热传质效率高..., and are preferentially formed at the edges of original hematite particle. The reduction temperature and roasting time have significant effect on thickness of the magnetite product layer. With the increase......
Leaching kinetics of bastnaesite concentrate in HCl solution BIAN Xue, YIN Shao-hua, LUO Yao, WU Wen-yuan School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China Received 30 October 2010; accepted 27 May 2011 Abstract: The leaching kinetics of bastnaesite concentrate in HCl solution was investigated with respect to the effects of HCl concentration by changing HCl......
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