On the selection of extractant for the preparation of high-purity gold

被引：1
|
作者：
Mironov, I. V. [1 ]
Natorkhina, K. I.
机构：
[1] Russian Acad Sci, Siberian Branch, Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2012年 / 57卷 / 04期
关键词：
ETHER;
D O I：
10.1134/S0036023612040195
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Processes that take place during extraction of HAuCl4 from hydrochloric acid solutions with neutral oxygen-containing extractants (esters, ethers, and ketones) were considered. Distribution ratios for certain extractants were determined. Separation factors beta(Au/M) (M = Fe, Ag) were shown to exhibit low change upon extractant variation. For example, when D (Au) changes by 6 orders of magnitude, the maximum deviation from log beta(Au/Fe) = 3.5 is not larger than 0.5, average s = 0.2.
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页码：610 / 615
页数：6
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