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J. Cent. South Univ. Technol. (2010) 17: 760-764 DOI: 10.1007/s11771-010-0553-x Solvent extraction of zinc from zinc sulfate solution LONG Huai-zhong(龙怀中)1, CHAI Li-yuan(柴立元)1, QIN Wen-qing(覃文庆)2...; Abstract: The extraction of zinc from zinc sulfate solution was investigated, using 20% saponified D2EHPA as an extractant and 260# sulfonate kerosene......
STUDY ON GREY FORECASTING MODEL OF COPPER EXTRACTION RATE WITH BIOLEACHING OF PRIMARY SULFIDE ORE H.C. Jiang1,B.H. Yang1,A.X. Wu2,Y. Xi3,X.S. Chen1 (1.School of Resources & Safety, Central South..., China) Abstract:A model GM (grey model) (1,1) for forecasting the rate of copper extraction during the bioleaching of primary sulphide ore was established on the basis of the mathematical theory......
Automation System in Rare Earths Countercurrent Extraction Processes 廖春生1,严纯华1,王明文1,吴声1,李标国1,贾江涛1 (1.State Key Laboratory of Rare Earth Materials Chemistry and Applications, Beijing Institute of Founder Rare Earth Science and Technology, Peking University,) Abstract:Based on the countercurrent extraction theory for optimized designing and simulating, the rare earth separation processes......
J. Cent. South Univ. (2012) 19: 340-346 DOI: 10.1007/s11771-012-1010-9 Extraction of nickel from molybdenum leaching residue of metalliferous black shale by segregation roasting and acid leaching CHU... roasting-sulfuric acid leaching-solvent extraction was investigated. The residue was characterized by microscopic investigations, using X-ray fluorescence spectrometry (XRF) and X-ray diffractometry (XRD......
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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... ____________________________________________________________________________________________ Abstract: Vanadium extraction from stone-coal was investigated by oxygen pressure acid leaching and solvent extraction......
of Cupriavidus sp. B-8 is better under the condition of lower concentration. High-performance liquid chromatography (HPLC) analysis reveals that above 95% of ferulic acid is degraded within 12 h... is initially converted to 4-vinylguaiacol, and further oxidized to vanillic acid and protocatechuic acid.Key words:Cupriavidus sp. B-8; lignin biodegradation; ferulic acid; gas chromatography and mass......
; 文献标志码:A Extraction of tungsten from simulated autoclave-soda leaching liquor of tungsten ore with quaternary ammonium salt... liquid is produced in the regeneration procedure. Aiming at this problem, the direct extraction of tungsten from simulated autoclave-soda leaching liquor was researched in order to shorten......
Situation and Developing Trend of Rare-Earth Countercurrent Extraction Processes Control 杨辉1,柴天佑1 (1.Research Center of Automation, Northeastern University,Shenyang,110004,China;2.School of Electronics and Electrical Engineering,East China Jiaotong University,Nanchang,330013,China) Abstract:On the basis of the description of the rare-earth countercurrent extraction process, the on-line......
J. Cent. South Univ. (2018) 25: 241-250 DOI: https://doi.org/10.1007/s11771-018-3733-8 Theoretical analysis of adaptive harmonic window and its application in frequency extraction of vibration... characteristics of window width changing and analytical center moving of the adaptive harmonic window are presented. Finally, the proposed adaptive harmonic window is applied to weak signal extraction......