摘要
研究了以P_(204)为萃取剂,二乙基三胺五乙酸(DTPA)为水相络合剂,在络合交换萃取体系中,料液pH,DTPA浓度等因素对分离钇铒的影响。结果表明,当料液pH7～8,DTPA浓度为0.5mol/L,混合时间为30min时,钇和铒萃取率分别为80.42％,27.62％.DTPA的回收利用率达90％。
The effect of feed pH and DTPA concentration on extraction and separation of er-
bium and yttrium in complex exchange system containing HDEHP as extractant, DTPA as
complex agent are investigated. The experimental results show that when the feed pH is 7～
8, DTPA concentration is 0. 5 mol/L and stir time is 30 min, the extraction rates of erbium
and yttrium is 80. 42 % and 27. 62%, respectively, and the recovery of DTPA is up to 90%.
出处
《广东有色金属学报》
2003年第1期64-67,共4页
Journal of Guangdong Non-Ferrous Metals
关键词
钇
铒
络合交换法
萃取
分离
HDEHP
extraction
complexing separation
yttrium
erbium
