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for phosphorus removal from high-phosphorus oolitic hematite ore in direct reduction roasting LI Yong-li, SUN Ti-chang, XU Cheng-yan, LIU Zhan-hua (State Key Laboratory of High-Efficient Mining and Safety... in direct reduction roasting of the Ningxiang type high phosphorus oolitic hematite with iron content about 43.58%, phosphorus content about 0.83% was studied. XRD and SEM were used to analyze......
Phase transformation in suspension roasting of oolitic hematite oreLI Yan-jun(李艳军)1, WANG Ru(王儒)1, HAN Yue-xin(韩跃新)1, WEI Xin-chao(魏新超)2(1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China;2. College of Engineering, The State University of New York Polytechnic Institute, Utica, NY 13502, USA)Abstract:Suspension roasting followed by magnetic separation......
and the transformation of iron oxides to metallic iron were accomplished in a single-step high-temperature process.The increase in roasting temperature favors the reduction of iron oxides but disfavors...A novel process for the recovery of iron,titanium,and vanadium from vanadium-bearing titanomagnetite:sodium modification–direct reduction coupled processYi-min Zhang1,2,3,Ling-yun Yi2,3,Li-na......
): 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 of Nonferrous... Guang-hui, SUN Na, ZENG Jing-hua, QIU Guan-zhou. Novel process for treatment of high-aluminum limonite ore by reduction roasting with addition of sodium salts[J]. The Chinese Journal of Nonferrous......
Recovering indium with sulfating roasting from copper-smelting ashZHU Guocai,ZHENG Mingdan,FAN Guanglong,and ZHAO Yuna Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing... in leaching process,and then recovered by sulfating roasting. The method included mix-ing the leaching-slag with sulfuric acid,making them into particles,roasting the mixture,and then leaching......
De-qing, CHUN Tie-jun, PAN Jian, WEI Xue-mei (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China) Abstract: The reduction roasting-magnetic separation- sulfuric acid leaching of high-phosphorus iron ores was studied. The process parameters of acid leaching were optimized with rougher iron ore concentrate obtained by reduction roasting-magnetic......
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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......
extraction and gold recovery from cyanide tailings by cyanide process after reduction roasting and acid leachingZHENG Ya-jie,GONG Chang,SUN Zhao-ming(School of Metallurgy and Environment,Central South University,Changsha 410083)Abstract:The cyanide tailings were treated by reduction roasting and acid leaching. The cyanide tailings were reduced under conditions of reduction temperature 850 ℃,the mass......
, China) Abstract: This paper proposes an innovative "carbothermal reduction roasting-low carbon redox refining" process for recovering valuable metals including copper, zinc, nickel, tin and lead from copper-containing sludge. First, valuable metals are volatilized into the flue gas by carbothermal reduction roasting. At a reduction temperature of 1473 K, a carbon content of 20%, and for a reaction......