SELECTIVE SEPARATION OF YTTRIUM IONS FROM OTHER RARE-EARTH IONS USING NONEQUILIBRIUM EXTRACTION

被引:26
作者
MINAGAWA, Y
YAJIMA, F
机构
关键词
D O I
10.1246/bcsj.65.29
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An advanced new method for the separation of yttrium ions from other rare earth ions using nonequilibrium extraction in the DTPA-B2EHPA system has been demonstrated. The extraction stages for obtaining yttrium oxide of 99.9% purity from yttrium oxide of 60% purity as a starting material were estimated to be about fifteen, which was the smallest value ever obtained, compared with the usual method (50-100 stages). The mechanism of the extraction reaction is discussed.
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页码:29 / 33
页数:5
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