作　　者： ; ;

机构地区： 西北师范大学化学化工学院化学系

出　　处： 《稀土》 1999年第4期16-20,共5页

摘　　要： 本文以切片石蜡为溶剂，ＴＢＰ为萃取剂，研究了ＮＨ４ＳＣＮ－ＨＮＯ３介质中镧系元素的萃取行为。考察了ＴＢＰ、ＮＨ４ＳＣＮ浓度、温度对萃取分离的影响。 The extraction behavior of lanthanide ions with TBP in molten paraffin and NH4SCN-HNO3 media wax has been studied.The influence of temperature and the concentrations of TBP and NH4SCN was tested.The composition ratio of extracted species,equilibrium constants and thermodynamic parameters of extraction reactions were measured.Comparison with corresponding liquidliquid extraction has also been made.

关 键 词： 固液萃取 萃取 镧系元素 磷酸三丁酯

领　　域： [冶金工程] [理学] [理学]