On the Use of Magnetite for Gold Recovery From Chloride Solution

被引：22

作者：

Alorro, Richard Diaz ^{[1
]}

Hiroyoshi, Naoki ^{[1
]}

Kijitani, Hajime ^{[1
]}

Ito, Mayumi ^{[1
]}

Tsunekawa, Masami ^{[1
]}

机构：

[1] Hokkaido Univ, Div Solid Waste Resources & Geo Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan

来源：

MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW | 2010年 / 31卷 / 04期

关键词：

gold; hydrometallurgy; iron oxide; magnetite; reductive precipitation; sorbent; IRON-OXIDES; ADSORPTION; COMPLEXES; GOETHITE;

D O I：

10.1080/08827508.2010.483359

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The sorption of gold chloride ([image omitted]) from chloride solution on synthetic and natural magnetite powders was investigated by batch sorption experiments. The effects of different parameters on the recovery were studied. The results showed that Gold (Au) uptake by magnetite was influenced by pH, contact time, chloride concentration, and initial Au concentration. Gold uptake by synthetic and natural magnetite was maximum at pH 6-7 with sorption amounts of 4.4mol/g and 5.0mol/g, respectively, after 24hr at an initial Au concentration of 0.05mol/m3. The Scanning Electron Microscopy-Energy Dispersive X-ray and Back Scattering Electron analyses of the magnetite particles after treatment confirmed the presence of Au precipitates on the magnetite (Fe3O4) surface.

引用

页码：201 / 213

页数：13

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