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研究了萃取色层法制备高纯氧化钇的最佳条件,指出,P_(507)-硅球色层柱和HCl淋洗剂体系能分离氧化钇中的轻稀土杂质,N_(263)-硅球色层柱和NH_4SCN淋洗剂体系能分离氧化钇中的重稀土。我们采用两者的组合,制备了接近六个九的高纯氧化钇。收率约60％左右。
The optimum conditions for the preparation of high purity yttrium oxide by extraction chromatography were studied. It was pointed out that P_ (507) - silica sphere column and HCl eluent system could separate light rare earth impurities, N_ (263) - Si Ball-pillars and NH4SCN eluent systems separate heavy rare earths from yttrium oxide. We use a combination of the two, prepared nearly six nine high-purity yttrium oxide. Yield about 60%.