固态萃取法研究稀土元素的分离——稀土-硫氰酸铵-磷酸三丁酯体系

Solid extraction method of researching the separation for rare earth element ——rare earth NH 4SCN TBP system

以石蜡为溶剂，用固态萃取法研究稀土（ＲＥ）－硫氰酸铵（ＮＨ４ＳＣＮ）－磷酸三丁酯（ＴＢＰ）体系的稀土萃取情况．并确定，在ＴＢＰ用量５．００ｍＬ，ＮＨ４ＳＣＮ用量为２．８ｇ时，各稀土元素的分配比Ｄ均大于１０．因此。

This paper studies the rare earth extraction of rare earth NH 4SCN TBP system by the method of solid extraction with paraffin as solvent.It is make sure that the distributing ratio D of each rare earth element is over ten when the situation of using 5 0 mL TBP and 2 8 g NH 4SCN.Therefore this system can be used for the extraction separation of rare earth element.