【摘要】 采用萃淋树脂ＣＬ－Ｐ５０７为萃取色层的固定相，稀盐酸为淋洗剂，品位９９％的稀土氧化物为原料，载量１％（镱、镥）和１．５％（铽、镝），在室温常压、常用流速的条件下，研究淋洗酸度对分离提纯的影响，对最难提纯的镥（镱镥间的分离）采取了独特的解决办法，确定了提取５～６Ｎ纯度的铽、镝、镱和镥的技术条件。更多还原

【Abstract】 The CL-P 507 resins containing HEH(EH)P,dilute HCl and the rare earth oxides of purity 99% are used as the fixed phase,eluants raw materials,respectively The main extracting coditions are as follows loading of rare earths 1.5% (Tb 4O 7、Dy 2O 3) and 1% (Yb 2O 3、Lu 2O 3),flow rates about 1 mL/cm 2·min and column ratios H/φ<20/1.Under the above mentioned conditions the effects of the acid concentration of the eluants on the extraction have been studied.A creative method for the most difficult extraction Lu 2O 3 have been given.The better technology conditions for extraction of 5～6N Tb 4O 7、Dy 2O 3、Yb 2O 3 and Lu 2O 3 have been determined.更多还原