Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (7): 956.

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A Study of the Extraction of Gold(Ⅰ) with HDEHP or HEHEHP

GUO Liang-qin, GAO Zi-li, SUN Si-xiu, SHEN Jing-lan   

  1. Department of Chemistry, Shandong University, Jinan, 250100
  • Received:1997-07-16 Online:1992-07-24 Published:1992-07-24

Abstract: The extraction equilibrium and kinetics of glod (I) from aqueous thiourea and sodium chloride/di (2-ethylhexyl) phosphoric acid(HDEHP) or 2-ethylhexyl 2-ethylhexyl phosphonic acid (HEHEHP) in kerosene were investigated at 298±1 K.The mechanism of extraction equilibrium determined is the exchange of cation.The rate-determining step of kinetics may be occur at the interface between HDEHP and HEHEHP and belongs to interfacial reaction.

Key words: Au(Ⅰ), Thiourea, Extraction equilibrium kinetics, HDEHP, HEHEHP

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