大孔膦酸树脂吸附镧的研究  

STUDIES ON THE SORPTION OF MACROPOROUS PHOSPHONIC ACID RESIN FOR LANTHANUM

作　　者：熊春华[1] 舒增年[1] 陈义镛[2] 

机构地区：[1]丽水师范专科学校化学系,浙江323000 [2]杭州大学化学系,杭州310028

出　　处：《离子交换与吸附》1997年第1期1-8,共8页Ion Exchange and Adsorption

摘　　要：本文测定了大孔膦酸树脂对La3+的吸附容量，介质pH、温度、吸附时间等因素对吸附的影响。测得吸附速率常数K298＝7．64×10－5S－1，树脂功能基与La3+的络合比为3：1，用化学及红外光谱等方法，得到大孔磷酸树脂吸附La3+的基本参数及其机理。The influences of medium PH, sorption temperature, sorption time, etc. on the sorption capacity of macroporous phosphonic acid resin for La3+ were determined. The sorption rate constant was K298 = 7. 64 ×10 - 5 s - 1. The complex ratio of phosphonic groups on the resin to La3+ was 3: 1. The basic sorption parameters and the sorption mechanism of macroporous phosphonic acid resin for La3 + were determined by Chemical analysis and IR spectrometry.

关 键 词：大孔膦酸树脂 吸附 镧 

分 类 号：O647.316[理学—物理化学]