应用化学2012，Vol.29Issue(1)：90-94,5.DOI:10.3724/SP.J.1095.2012.00062
8-羟基喹啉对稀土钐和钇的萃取行为
Extraction of Samarium and Yttrium with 8-Hydroxyquinoline
摘要
Abstract
The solvent extraction of samarium and yttrium using 8-hydroxyquinoline( HQ )-n-heptane in nitric acid medium was systematically investigated including the effects of various parameters, such as HQ concentration, NO3~ concentration and pH value in equilibrated aqueous solution on the distribution ratio of rare earth. The distribution ratio increased with the increase of HQ concentration and pH value and decreased with the increase of NO3- concentration. The formed complex was believed to be M( NO3 ) Q( HQ) ( OH) based on the results from slop method and charge balance. The complex extraction mechanism of samarium and yttrium by HQ in nitric acid was confirmed.关键词
羟基喹啉/钐/钇/萃取机理/平衡常数Key words
hydroxyquinoline/ samarium/ yttrium/ extraction mechanism/ extraction constant分类
化学化工引用本文复制引用
王香兰,尹恒,王姗姗..8-羟基喹啉对稀土钐和钇的萃取行为[J].应用化学,2012,29(1):90-94,5.基金项目
湖北省教育厅科学技术研究计划指导性项目(B20094007),武汉市市属高等学校科学研究项目(2008K018) （B20094007）
