【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).更多还原

【Abstract】 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.更多还原