期刊
MINERALS ENGINEERING
卷 20, 期 8, 页码 747-752出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mineng.2007.02.010
关键词
extractive metallurgy; hydrometallurgy; solvent extraction
This work has been aimed at identifying suitable conditions for the separation of europium/gadolinium mixture, with a high Gd content and without previous europium reduction, into a phase of high-purity Gd and a Eu-enriched mixture. Acid and basic extractants have been evaluated in a number of experimental conditions. Two acid extractants were investigated, DEHPA and (HEH(EHP)), the latter in its natural and saponified forms. Also, a series of basic extractants, Primene JM-T (R), Primene 81R (R), Alamine 336 (R) and Aliquat 3360 was evaluated. The Aliquat 3360 was employed in chloride and nitrate forms. The experiments with acid extractants were carried out in hydrochloric medium, while the basic extractants were investigated in nitric and sulfuric medium. The selectivity achieved with Aliquat 336 (R) (separation factor of 2.0) was superior to those obtained with the acid extractants (separation factors of 1.48 for DEHPA and 1.59 for HEH(EHP)). (c) 2007 Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据