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Relationship of Purity Gradient and Accumulation with Feed Composition in Two-Component Countercurrent Extraction SystemJia Jiangtao ,Yan Chunhua Liao Chunsheng Wang Mingwen , Li Biaoguo (State Key Laboratory of Rare Earth Materials Chemistry & Applications, Peking University,Beijing 100871, China)摘 要:Ａｃｃｕｍｕｌａｔｉｏｎ......
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-hua. Review and recent progresses on theory of countercurrent extraction[J]. Journal of the Chinese Society of Rare Earths, 2017, 35(1): 1-8. [26] 赵中伟. 钨冶炼的理论与应用[M]. 北京: 清华大学出版社, 2013. ZHAO Zhong-wei... engineering[M]. Tianjing: Tianjing University Press, 1992. Application of countercurrent extraction theory in ion exchange fixed bed adsorption process TANG Xiao-wei, ZHAO Zhong-wei, LIU Xu-heng (School......
Axial mixing and mass transfer characteristics of pulsed extraction column with discs and doughnuts WANG Yue-yun(王悦云), JING Shan(景 山), WU Giu-lin(吴秋林), WU Wei(吴 伟) Institute of Nuclear...> Abstract: The axial mixing is a key factor for design and scaling up of the pulsed extraction column which has strong influence on the mass transfer performances of the pulsed extraction column with discs......
the influential factors of extraction of vanadium, were investigated. The two-step countercurrent acid pressure leaching with oxygen was carried out. The powdery V2O5 product was obtained... Extracting vanadium from stone-coal by oxygen pressure acid leaching and solvent extraction DENG Zhi-gan(邓志敢), WEI Chang(魏 昶), FAN Gang(樊 刚), LI Min-ting(李旻廷), LI Cun-xiong(李存兄), LI......
in the whole extraction process is realized. The extraction rate of WO3 is 95.64% and the removing rates of P and As are higher than 90% in the 9-stage simulated countercurrent extraction. Key words...; 文献标志码:A Extraction of tungsten from simulated autoclave-soda leaching liquor of tungsten ore with quaternary ammonium salt......
, HORIKAWA R. Resolution of D, L-valine by countercurrent solvent extraction with continuous sample feeding[J]. Separation Science and Technology, 1990, 25(7/8): 941-951. [10] TANG Ke-wen, ZHOU Chun-shan...J. Cent. South Univ. Technol. (2007)03-0353-04 DOI: 10.1007/s11771-007-0070-8 Chiral extraction of ketoprofen......
, temperature of 150 ℃, 25% addition of H2SO4, L/S of 1.2 mL/g, 85% particle size of 0.074 mm, and 5% addition of FeSO4. 2) The extraction yield of vanadium reaches 90% for the two-step countercurrent... Pressure acid leaching of black shale for extraction of vanadium LI Min-ting(李旻廷), WEI Chang(魏 昶), FAN Gang(樊 刚), LI Cun-xiong(李存兄),DENG Zhi-gan(邓志敢), LI Xin-bin(李兴彬) Faculty of Metallurgical......
; 文献标识码: A Theoretical analysis of effective separation factor for multi-component rare earths in countercurrent extraction ZHONG Xue-ming (School of Environmental and Chemical...: multi-component; rare earth; countercurrent extraction; effective separation factor; theoretical rule; average fraction method ......
