Liquid-Liquid Extraction Equilibria for Pt(IV)-HCl-Cyanex 921 and Pt(IV)-HCI-Cyanex 925 Systems in Toluene

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

PURUSHOTTAM M. DHADKE¹  ASHOK A. MHASKE¹ 

[1] Department of Chemical Technology, University of Mumbai

关键词: Extraction;    Extraction Mechanism;    Platinum(IV);    Cyanex 921;    Cyanex 925;   

DOI  :  10.1252/jcej.34.1052

来源: Maruzen Company Ltd

【 摘 要 】

References(11)Cited-By(6)The equilibrium distribution of platinum (IV) between hydrochloric acid and the neutral phosphine oxide extractants Cyanex 921 as well as Cyanex 925 in toluene are examined. From the concentration dependencies of the distribution ratio, it was determined that Pt(IV) is extracted as (H+·2R)2PtCl62- via ion-pair mechanism with both the extractants. The temperature dependence of the extraction equilibriums are examined by temperature variation method to estimate apparent thermodynamic function ΔH.

【 授权许可】

Unknown