【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。更多还原

【Abstract】 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.更多还原