GOLD ADSORPTION FROM ALKALINE AUROCYANIDE SOLUTION BY NEUTRAL POLYMERIC ADSORBENTS
作者:
M. Akser,
R. Y. Han,
J. D. Miller,
期刊:
Solvent Extraction and Ion Exchange
(Taylor Available online 1986)
卷期:
Volume 4,
issue 3
页码: 531-546
ISSN:0736-6299
年代: 1986
DOI:10.1080/07366298608917880
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Certain neutral polymeric adsorbents such as the polyacry-lates XAD-7 and XAD-8 were discovered to exhibit modest capacities for the loadiny of gold from alkaline cyanide solutions. The adsorption characteristics of these resins were examined as a function of pH, ionic strength, and temperature. The experimental results suggest that adsorption occurs via ion pair formation and that the adsorption process can be described by the Freundlich adsorption equation. Interestingly, the polyacrylate resins show excellent selectivity for gold with respect to many other cyanoan-ions.
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