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研究了 PAIV萃淋树脂色层柱在钕浓度 0 .414× 10 - 6 、2 5～ 30 m L溶液中对钕的吸附 ,选择含有草酸或EDTA的稀硝酸溶液进行淋洗 ,可以使钕富集近 4倍 ,用分光光度法测定淋洗液钕含量 ,回收率为 10 3.1%
The adsorption of neodymium on the PAIV column was studied in the solution of neodymium with a concentration of 0.1414 × 10 ~ 6 and 25 ~ 30 mL. The leaching of dilute nitric acid solution containing oxalic acid or EDTA was carried out to make the neodymium rich Set nearly 4 times, with a spectrophotometric neodymium rinse elution, the recovery rate of 10 3.1%