Skip to the main content

Original scientific paper

Investigation of mechanism and kinetics of chalcopyrite concentrate oxidation process

M. Sokić
I. Ilić
D. Živković
N. Vučković


Full text: english pdf 830 Kb

page 109-113

downloads: 2.623

cite


Abstract

The oxidation process of chalcopyrite concentrate ″Rudnik″ (Serbia) was investigated by DTA-TG measurements under air conditions in the temperature range of 298 – 1173 K, as well as by XRD analysis of the oxidation products at 723, 873 and 1173 K. Based on the results obtained, the mechanism of chalcopyrite concentrate oxidation process was given, contributing to the understanding of the successive chemical reactions accompanying the formation of intermediate products. The kinetic study of the investigated process was done according to the methods of Kissinger and Ozawa, which enabled determination of the activation energy values of the chemical reactions proceeding during the chacopyrite concentrate oxidation.

Keywords

chalcopyrite; oxidation; DTA-TG; XRD; kinetics

Hrčak ID:

19526

URI

https://hrcak.srce.hr/19526

Publication date:

1.4.2008.

Article data in other languages: croatian

Visits: 3.512 *