HPMBP从硝酸介质中萃取La(Ⅲ)的热动力学研究  

Thermokinetic research of the solvent extraction of La(Ⅲ) with 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 in a nitric acid medium

作　　者：王高升[1] 

机构地区：[1]枣庄学院化学化工系,山东枣庄277160

出　　处：《商丘师范学院学报》2010年第9期78-80,共3页Journal of Shangqiu Normal University

摘　　要：研究了1-苯基-3-甲基-4-苯甲酰基吡唑酮-5(HPMBP)从硝酸介质中对La3+的萃取,测定了萃取反应的反应热ΔrHmθ;运用斜率法得出萃合物的组成为La(PMBP)3;得到了萃取反应平衡方程式La3++3HPMBP(o)=La(PMBP)3+3H+;得出了反应的速率方程:v=Kf[HPMBP](o)2[H+]-1[La3+]-Kb[HPMBP](o)[H+]-2[La3+](o).The solvent extraction of La（Ⅲ） with 1-phenyl-3-methyl-4-benzoylpyrazolone-5（HPMBP） from the medium of Nitric Acid was studied,and the composing of complex was obtained as La（PMBP）3 by the slope analysis method;the equilibrium equation of solvent action was concluded as La3＋＋3HPMBP（o）= La（PMBP）3＋3H＋;and the rate equation of the action has been obtained as well.

关 键 词：萃取 La(Ⅲ) HPMBP 

分 类 号：O642.3[理学—物理化学]