Title of article
KINETIC STUDIES FOR GOLD LEACHING OF A REFRACTORY SULFIDE CONCENTRATE BY CHLORIDE–HYPOCHLORITE SOLUTION
Author/Authors
GHOBEITI HASAB، M. نويسنده , , Rashchi، F. نويسنده School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran. , , Raygan، Sh. نويسنده ,
Issue Information
فصلنامه با شماره پیاپی 42 سال 2014
Pages
11
From page
37
To page
47
Abstract
In this paper, gold leaching of a refractory sulfide concentrate by chloride–hypochlorite solution was
investigated and effects of stirring speed, temperature and particle size on the leaching rate were reported.
Experimental data for leaching rate of gold were analyzed with the shrinking–core model. Results were consistent with
chemical reaction control mechanism in the first 1 h of leaching and diffusion control mechanism in the second 1 h.
Apparent activation energy also was found to be 22.68 kJ/mol in the first step and 3.93 kJ/mol in the second step of
leaching.
Journal title
Iranian Journal of Materials Science and Engineering
Serial Year
2014
Journal title
Iranian Journal of Materials Science and Engineering
Record number
1801498
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