Pb(Ⅱ)/(Na,H)NO_3/HDEHP Kerosene萃取体系的机理研究

Extraction mechanism studies on Pb(Ⅱ)/(Na,H)NO_3/HDEHP Kerosene system

研究了Ｐｂ（ Ⅱ）／（Ｎａ，Ｈ）ＮＯ３／ＨＤＥＨＰＫｅｒｏｓｅｎｅ 萃取体系的平衡和机理，考察了一些因素对分配比的影响，用斜率法确定了萃合物的组成．结果发现，酸度和温度的改变都会使萃取反应的机理发生变化．

The extraction mechanism of Pb(Ⅱ) from nitrate solution with HDEHP in Kerosene was studied at (298±1)K.The influences of some factors on distribution ratie were also investigated.We found that the mechanism of extraction reaction would change when acidity in aqueous phase and temperature were changed.