Leaching

Printed circuit board (PCB) is the essential part of electronic devices and has an important source of base and precious metals with high economic potential. In this study, selective leaching of gold from PCB was performed in an iodine-hydrogen peroxide (I sub(2)-H sub(2)O sub(2)) solution system. T...

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Bibliographic Details
Published in:Separation science and technology 2015-01, Vol.50 (16), p.2587-2595
Main Authors: Sahin, Merve, Akcil, Ata, Erust, Ceren, Altynbek, Shinar, Gahan, Chandra Sekhar, Tuncuk, Aysenur
Format: Article
Language:English
Subjects:
Circuit boards
Dynamic tests
Dynamics
Gold
Iodine
Leaching
Printed circuits
Recovery
Online Access:Get full text
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Summary:Printed circuit board (PCB) is the essential part of electronic devices and has an important source of base and precious metals with high economic potential. In this study, selective leaching of gold from PCB was performed in an iodine-hydrogen peroxide (I sub(2)-H sub(2)O sub(2)) solution system. The effects of different parameters such as iodine concentrations, H sub(2)O sub(2) concentrations and solids-% on the gold leaching dynamics were investigated. The results show that increasing solids-% has a negative influence on the gold leaching. However, gold recovery from the e-wastes in a solution containing 3% iodine, 1% H sub(2)O sub(2) with solids-% of 15% resulted with 100% recovery among all leaching tests.
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2015.1061005