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J. Cent. South Univ. (2017) 24: 2266-2274 DOI: https://doi.org/10.1007/s11771-017-3637-z Extracting reaction mechanism analysis of Zn and Si from zinc oxide ore by NaOH roasting method CHEN Bing(陈兵..., respectively. Key words: zinc oxide ore; NaOH roasting method; reaction process; reaction mechanism; kinetics 1 Introduction As an important nonferrous metal, zinc is widely used in galvanizing......
feldspar roasting was studied in the presence of sodium carbonate. The reaction mechanism was analyzed; the kinetic model and the rate-controlling step of the reaction were determined in order...J. Cent. South Univ. (2017) 24: 1544-1550 DOI: 10.1007/s11771-017-3559-9 Kinetics of roasting potash feldspar in presence of sodium carbonate LIU Jia-nan(刘佳囡)1, ZHAI Yu-chun(翟玉春)1, 2, WU Yan(吴艳)1......
the kinetics, the reaction thermodynamics and the mechanism of the reactions between Na2CO3 and chromite ore. In this work, the thermodynamics of the reactions involved in lime-free roasting process is concentrated to make the reaction mechanism more clear. 2 Assumptions and method It is assumed that the whole roasting process and all reactions are carried out at a constant temperature and under......
Prediction of Al(OH)3 fluidized roasting temperature based on wavelet neural network LI Jie(李 劼)1, LIU Dai-fei(刘代飞)1, DAI Xue-ru(戴学儒)2, ZOU Zhong(邹 忠)1, DING Feng-qi(丁凤其)1 1. School...; Abstract: The recycle fluidization roasting in alumina production was studied and a temperature forecast model was established based on wavelet neural network that had a momentum item......
Magnetizing Roasting Mechanism and Effective Ore Dressing Process for Oolitic Hematite Ore余永富College of Resources and Environment al Engineering,Wuhan University of Technology摘 要:Magnetizing roasting of oolitic hematite ore from western Hubei Province was investigated.The mechanism for reduction roasting of oolitic hematite ore was discussed......
Consolidation mechanism of gold concentrates containing sulfur and carbon during oxygen-enriched air roastingQian Li,Fang-zhou Ji,Bin Xu,Jian-jun Hu,Yong-bin Yang,Tao JiangSchool of Minerals Processing and Bioengineering,Central South University摘 要:Consolidation in calcines is a common problem in the oxygen-enriched air roasting of refractory gold......
silicate into zinc sulfide is a sulfur inducing and sulfur-oxygen interface exchange mechanism. However, the actual wastes containing zinc ferrite by sulfidation roasting have not been systematically... J. Cent. South Univ. (2020) 27: 1186-1196 DOI: https://doi.org/10.1007/s11771-020-4359-1 Sulfidation roasting of zinc leaching residue with pyrite for recovery of zinc and iron MIN Xiao-bo(闵小波)1, 2......
and V2O5(n(Ca O)/n(V2O5)),roasting temperature,holding time,and the heating rate used in the oxidation–calcification processes were investigated.The roasting process and mechanism were analyzed by X-ray...Roasting and leaching behaviors of vanadium and chromium in calcification roasting–acid leaching of high-chromium vanadium slagJing Wen1,Tao Jiang1,2,Mi Zhou1,2,Hui-yang Gao1,Jia-yi Liu1,Xiang-xin......
from ludwigite ore: Mechanism on soda-ash roasting of Lizardite and Szaibelyite [J]. Minerals, 2019, 9(9): 533. DOI: https://doi.org/10.3390/min9090533. [8] LIU G S, STREZOV V, LUCAS J A, WIBBERLEY L... J. Cent. South Univ. (2020) 27: 1484-1494 DOI: https://doi.org/10.1007/s11771-020-4384-0 Growth of metallic iron particles during reductive roasting of boron-bearing magnetite concentrate ZHANG Xin......
, the mechanism and technology of segregation roasting of oxide nickel ores and pure nickel sulphate were studied [16-17]. Pre-roasting can change the mineral structure [18], and VALIX and CHEUNG [19] even...(4): 417-429. [16] REZNIK I D, TARASOV A V, MAYOROV A D. Mechanism and technology of reduction roasting of oxide nickel ores with subsequent calcine flotation and concentrate leaching [C......