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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。
In this paper, macroporous phosphonic acid resin adsorption of La3 + capacity, media pH, temperature, adsorption time and other factors on the adsorption. The adsorption rate constant K298 = 7.64 × 10-5S-1 and the complex ratio of functional group to La3 + was 3: 1. The basic parameters of adsorption of La3 + by macroporous phosphate resin were obtained by chemical and infrared spectroscopy. Its mechanism