1-苯基-3-甲基-4-苯甲酰基吡唑酮-5萃取Pr(Ⅲ)的热动力学研究  

Thermokinetic Studied of the Solvent Extraction of Pr(Ⅲ) with 1-Phenyl-3-Methyl-4-Benzoyl-Pyrazolone-5

作　　者：闫咏梅[1] 王建涛[1] 孔哲[1] 郁雪梅[1] 高桂兰[1] 张洪林[1] 

机构地区：[1]曲阜师范大学化学科学学院,山东省曲阜市273165

出　　处：《曲阜师范大学学报（自然科学版）》2007年第1期83-86,共4页Journal of Qufu Normal University(Natural Science)

基　　金：山东省自然科学基金(Y2006B13)

摘　　要：研究了以CHCl3为溶剂HPMBP萃取Pr(Ⅲ)的热动力学性质,求出萃合物的组成为Pr(PMBP)3;得出萃取平衡方程式为:Pr3++3HPMBP(o)=Pr(PMBP)3(o)+3H+;反应的速率方程式为v=kf[HPMBP](2o)[H+]-1[Pr3+]-kb[HPMBP](-o1)[H+]2[Pr3+](o).用微量量热法测定了HPMBP萃取Pr(Ⅲ)的热效应,进而得出HPMBP萃取Pr(Ⅲ)的反应热.The 1-Phenyl-3 Methyl-4-Benzoyl-Pyrazolone-5（HPMBP）/Pr（ Ⅲ ） extraction system is studied. The composing of complex is concluded as Pr（PMBP）3, the equilibrium equation of solvent extraction is determined as Pr^3＋ ＋3 HPMBP（o） =Pr（PMBP）3（o） ＋3H^＋, and the rate equation of the extraction has been obtained as well υ= kf[HPMBP]（o）^2, [H^＋]^-1 [Pr^3＋]-kb [HPMBP]（o）^01[H^＋]^2 [Pr^3＋]（o）. Based on the power-time curve by the microcalorimetric method, the heat of reaction is determined as △rHm^θ = 1. 6063 × 10^4 J · mol^-1.

关 键 词：萃取 Pr(Ⅲ) HPMBP CHCl3 热动力学 微量量热法 

分 类 号：O642.3[理学—物理化学]