Adsorption of D113 Resin for Dysprosium(Ⅲ)  

作　　者：王惠君 

机构地区：[1]College of Marine Science and Technology,Zhejiang Ocean University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2007年第4期653-656,共4页武汉理工大学学报（材料科学英文版）

基　　金：the Natural Science Foundation of Zhejiang Province(No.201027);Foundation of Zhejiang Provincial Education Bureau(No.20040551);Zhoushan Science.Technology Bureau(No.04114)

摘　　要：The adsorption behavior and mechanism of D ll 3 resin for Dy（lII） was investigated by using the method of resin adsorption. Experimental results show that the optimum medium pH of adsorption of D 113 resin for Dy^3- is pH=6.00 in the HAc-NaAc medium. The static adsorption capacity of D113 resin for Dy3. is 292.7 mg·g^-1. The optimum eluant is 0.5 mol,L-~ HC1. The adsorption rate constant is k298=6.8× 10-6s^-1. The apparent activation energy of D113 resin for Dy（Ⅲ） is 14.79 kJ·mol^-1. The adsorption behavior of D113 resin for Dy（Ⅲ） obeys the Freundlich isotherm. The adsorption parameters of thermodynamic are AH=14.48 kJ·mol^-1,△S=54.69 J·mol^-1,K^-1, △G= 1.82 kJ·mol^-1.The adsorption mechanism of Dll3 resin for Dy^3- was confirmed by chemical analysis and IR spectra.The adsorption behavior and mechanism of D ll 3 resin for Dy（lII） was investigated by using the method of resin adsorption. Experimental results show that the optimum medium pH of adsorption of D 113 resin for Dy^3- is pH=6.00 in the HAc-NaAc medium. The static adsorption capacity of D113 resin for Dy3. is 292.7 mg·g^-1. The optimum eluant is 0.5 mol,L-~ HC1. The adsorption rate constant is k298=6.8× 10-6s^-1. The apparent activation energy of D113 resin for Dy（Ⅲ） is 14.79 kJ·mol^-1. The adsorption behavior of D113 resin for Dy（Ⅲ） obeys the Freundlich isotherm. The adsorption parameters of thermodynamic are AH=14.48 kJ·mol^-1,△S=54.69 J·mol^-1,K^-1, △G= 1.82 kJ·mol^-1.The adsorption mechanism of Dll3 resin for Dy^3- was confirmed by chemical analysis and IR spectra.

关 键 词：Dll3 resin adsorption behavior adsorption mechanism dysprosium（Ⅲ） RARE-EARTHS 

分 类 号：O647.31[理学—物理化学]