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研究了大孔膦酸树脂从酸性介质中吸附稀土元素的性能和条件。用饱和容量法确定了树脂吸附稀土的络合比(R∶RE=3∶1)。用不同浓度的 HCl 和 NaCl 混合溶液在75分钟内定量洗脱分离了微克量的稀土 Nd 和 Er。通过树脂红外光谱的研究。推断了树脂吸附稀土的成键机理。
The properties and conditions of macroporous phosphonic acid resin adsorbing rare earth elements from acid medium were studied. The complex ratio (R: RE = 3: 1) of resin adsorbed rare earth was determined by the saturation capacity method. The micrograms of rare earth Nd and Er were eluted quantitatively in 75 minutes using different concentrations of HCl and NaCl mixed solution. Through the resin infrared spectroscopy research. The bonding mechanism of rare earth adsorption on resin was deduced.