Copper-gold ore processing with ion exchange and SART technology
File(s)
Accepted version
Author(s)
Hedjazi, F
Monhemius, AJ
Type
Journal Article
Abstract
Anglo Asian Mining has developed a 50,000 oz Au/yr open pit gold mine at Gedabek in Western Azerbaijan. The deposit at Gedabek is a copper-gold porphyry, comprising both oxide and sulphide ore mineralisation, which is being mined at the rate of about 1 million tons of ore per year. Ore processing is by conventional cyanide heap leaching, which produces a pregnant leach solution (PLS) containing 1-2 ppm of gold, together with 1000 ppm or more of copper. The PLS is treated by column ion exchange, using Dows gold-selective MINIX resin. Loaded resin is stripped with an acidic thiourea solution, from which gold and silver are electrowon on to stainless steel mesh cathodes. Copper concentrations in the leach solutions are controlled by passing part of the PLS flow through a SART process, where the acronym stands for Sulphidisation, Acidification, Recycling and Thickening . The product from the SART process is a copper/silver sulphide precipitate, which is thickened, filtered and dried and then sold for copper smelting. © 2014 Elsevier Ltd. All rights reserved.
Date Issued
2014-10-01
ISSN
0892-6875
Start Page
120
End Page
125
Journal / Book Title
Minerals Engineering
Volume
64
Copyright Statement
© 2014 Elsevier Ltd. All rights reserved. All rights reserved. NOTICE: this is the author’s version of a work that was accepted for publication in Minerals Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in MINERALS ENGINEERING, Vol.: 64, (2014) DOI:10.1016/j.mineng.2014.05.025
Description
05.08.14 KB. Ok to add accepted version to spiral, Elsevier says ok while mandate not enforced.