大孔膦酸树脂吸附镱的研究  

STUDIES ON THE ADSORPTION OF YTTERBIUM(Ⅲ) ON MACROPOROUS PHOSPHONIC ACID RESIN

作　　者：王永江[1] 熊春华[1] 舒增年[1] 沈秋仙[2] 

机构地区：[1]丽水师范专科学校化学系,浙江丽水323000 [2]丽水师范专科学校溪口校区,浙江丽水323000

出　　处：《化学研究与应用》2001年第3期305-307,共3页Chemical Research and Application

基　　金：浙江省教委资助项目 !(972 11);丽水市科委计划项目! (990 0 8)

摘　　要：In this paper the sorption behavior of Yb(Ⅲ) onto the macroporous phosphonic acid resin (MPAR) is reported.Experimental results show that the statically saturated sorption capacity is 328 mg/g·resin;Yb(Ⅲ) adsorbed on MPAR can be eluted by 1mol·L -1 HCl,elution percentage is 91.5%.The apparent rate constant is k 298 = 4.63×10 -5 s -1 .The sorption behavior of MPAR for Yb(Ⅲ) abides the Freundlich isotherm.The themodynamic parameter of sorption:enthalpy change ΔH for Yb(Ⅲ) is 50.4kJ·mol -1 .The coordination molar ratio of the functional group of MPAR to Yb(Ⅲ) is 3∶1.The bondforming conditions of MPAR for Yb(Ⅲ) is examined by IR spectrometry.In this paper the sorption behavior of Yb(Ⅲ) onto the macroporous phosphonic acid resin (MPAR) is reported.Experimental results show that the statically saturated sorption capacity is 328 mg/g·resin;Yb(Ⅲ) adsorbed on MPAR can be eluted by 1mol·L -1 HCl,elution percentage is 91.5%.The apparent rate constant is k 298 = 4.63×10 -5 s -1 .The sorption behavior of MPAR for Yb(Ⅲ) abides the Freundlich isotherm.The themodynamic parameter of sorption:enthalpy change ΔH for Yb(Ⅲ) is 50.4kJ·mol -1 .The coordination molar ratio of the functional group of MPAR to Yb(Ⅲ) is 3∶1.The bondforming conditions of MPAR for Yb(Ⅲ) is examined by IR spectrometry.

关 键 词：大孔膦酸树脂 镱 吸附 提取 

分 类 号：TF845[冶金工程—有色金属冶金] TF803.23