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Kinetic Study on the Induced Coordination Reaction of Lanthanum with p-Acetylcarboxylazo林智信,刘凤华,杨林,蔡汝秀摘 要:<正> The absorption spectra of p-ACA(p... reaction between La and p-ACA and the effects oftemperature,acidity and ionic strength on the induction period were studied.The reaction mechanism wasdepicted.The rate equation is consistent with the rate......
J. Cent. South Univ. (2017) 24: 1529-1536 DOI: 10.1007/s11771-017-3557-y Statistical design and kinetic and thermodynamic studies of Ni(II) adsorption on bentonite Bahareh Sadeghalvad, Amir Reza... 2017 Abstract: The adsorption of the bentonite toward Ni(II) from aqueous solution was studied to obtain optimum conditions, equilibrium model, thermodynamic and kinetic parameters. Statistical......
Equilibrium and kinetic data of adsorption and separation for zirconium and hafnium onto MIBK extraction resin XU Zhi-gao (徐志高), WU Yan-ke (吴延科), ZHANG Jian-dong (张建东), ZHANG Li (张 力), WANG Li...) are 75.93 mg/g and -0.012 7 L/g, respectively. The obtained kinetic data of both zirconium and hafnium are found to fit the HO pseudo-second-order kinetic model, and the rate constants of pseudo-second......
KINETIC MODEL FOR POWDER INJECTION DESULFURIZATION S.R. Yu1,X.G. Bi1,Y. Jin1 (1.Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China) Abstract:The kinetic model for desulfurization using CaO-based powder injection has been proposed,which accords with the actual process of the experiment......
Extraction and kinetic analysis of Pb and Sr from the leaching residue of zinc oxide oreXiao-yi Shen1,Yuan-yong Liang1,Hong-mei Shao2,Yi Sun1,Yan Liu1,Yu-chun Zhai11. Key Laboratory for Ecological...="ChDivSummary" name="ChDivSummary">NH4HCO3 conversion followed by HCl leaching was performed and proven to be effective in extracting Pb and Sr from zinc extracted residual. The mechanism and operating......
Hydrometallurgical leaching and kinetic modeling of low-grade manganese ore with banana peel in sulfuric acidSajjad Ali1,Yaseen Iqbal1,Inamullah Khan1,Ansar Ullah1,Muhammad Sadiq1,Muhammad... model and the leaching rate was controlled by a surface chemical reaction(1-(1-x)1/3=kt) mechanism with an apparent activation energy of 40.19 k J·mol-1.关键词:......
reaction rate constant Kc. The leaching mechanism intensified by ultrasonic wave was analyzed according to the kinetics models. Key words: chalcopyrite; leaching; ultrasonic wave intensifying; kinetic...;超声强化;动力学模型 中图分类号:TF111.14 文献标志码:A Experiment and mechanism analysis on leaching process of low......
Kinetic process of oxidative leaching of chalcopyrite under low oxygen pressure and low temperature QIU Ting-sheng(邱廷省)1, NIE Guang-hua(聂光华)2, WANG Jun-feng(王俊峰)1, CUI Li-feng(崔立凤)1 1. School...; Abstract: Kinetic process of oxidative leaching of chalcopyrite in chloride acid hydroxide medium under oxygen pressure and low temperature was investigated. The effect on leaching......
Trans. Nonferrous Met. Soc. China 28(2018) 1016-1026 Thermal dehydration kinetic mechanism of Mn1.8Co0.1Mg0.1P2O7·2H2O using Málek’s equations and thermodynamic functions determination Chuchai... model was suggested to be the mechanism function for the dehydration process. The best fit led to the kinetic triplets of Eα=(79.97±6.51) kJ/mol, ln A=16.83 and f(α)=α0.520(1-α)1.255 (α......
Characterization of P-nitrophenol Adsorption Kinetic Properties in Batch and Fixed Bed Adsorbers邵琰1,ZHANG Huiping2,鄢瑛21. School of Chemical and Environment Engineering, Wuyi University2. School... number both confirm that intraparticle diffusion and film mass transfer are the controlling mass transfer mechanism in fixed bed adsorption system.关键词:......