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Structural, microstructural, and thermal characterizations of a chalcopyrite concentrate from the Singhbhum shear zone, India

Chatterjee, Ritayan LU ; Chaudhuri, Shamik; Kuila, Saikat Kumar and Ghosh, Dinabandhu (2015) In International Journal of Minerals, Metallurgy and Materials 22(3). p.225-232
Abstract
The structural and morphological characterizations of a chalcopyrite concentrate, collected from the Indian Copper Complex, Ghatshila, India, were carried out by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The concentrate powder was composed mainly of free chalcopyrite and low quartz in about 3:1 weight ratio. The particle size was about 100 mu m. Spectroscopic studies (FTIR, Raman, UV-visible) of the concentrate supported the XRD findings, and also revealed a marginal oxidation of the sulfide phase. The energy band gap of the sulfide was found to be 3.4 eV. Differential thermal analysis and thermogravimetry of the concentrate showed a decomposition of chalcopyrite at 658 K with an activation... (More)
The structural and morphological characterizations of a chalcopyrite concentrate, collected from the Indian Copper Complex, Ghatshila, India, were carried out by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The concentrate powder was composed mainly of free chalcopyrite and low quartz in about 3:1 weight ratio. The particle size was about 100 mu m. Spectroscopic studies (FTIR, Raman, UV-visible) of the concentrate supported the XRD findings, and also revealed a marginal oxidation of the sulfide phase. The energy band gap of the sulfide was found to be 3.4 eV. Differential thermal analysis and thermogravimetry of the concentrate showed a decomposition of chalcopyrite at 658 K with an activation energy of 208 kJ center dot mol(-1), and two successive structural changes of silica at 848 K and 1145 K. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
chalcopyrite, structural properties, microstructure, thermal, characteristics
in
International Journal of Minerals, Metallurgy and Materials
volume
22
issue
3
pages
225 - 232
publisher
Springer
external identifiers
  • wos:000350804800002
  • scopus:84924296911
ISSN
1869-103X
DOI
10.1007/s12613-015-1065-3
language
English
LU publication?
yes
id
4cb0c404-cd4a-4797-b3f6-2c83b6afe067 (old id 5300468)
date added to LUP
2015-04-27 10:15:22
date last changed
2017-10-01 03:24:45
@article{4cb0c404-cd4a-4797-b3f6-2c83b6afe067,
  abstract     = {The structural and morphological characterizations of a chalcopyrite concentrate, collected from the Indian Copper Complex, Ghatshila, India, were carried out by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The concentrate powder was composed mainly of free chalcopyrite and low quartz in about 3:1 weight ratio. The particle size was about 100 mu m. Spectroscopic studies (FTIR, Raman, UV-visible) of the concentrate supported the XRD findings, and also revealed a marginal oxidation of the sulfide phase. The energy band gap of the sulfide was found to be 3.4 eV. Differential thermal analysis and thermogravimetry of the concentrate showed a decomposition of chalcopyrite at 658 K with an activation energy of 208 kJ center dot mol(-1), and two successive structural changes of silica at 848 K and 1145 K.},
  author       = {Chatterjee, Ritayan and Chaudhuri, Shamik and Kuila, Saikat Kumar and Ghosh, Dinabandhu},
  issn         = {1869-103X},
  keyword      = {chalcopyrite,structural properties,microstructure,thermal,characteristics},
  language     = {eng},
  number       = {3},
  pages        = {225--232},
  publisher    = {Springer},
  series       = {International Journal of Minerals, Metallurgy and Materials},
  title        = {Structural, microstructural, and thermal characterizations of a chalcopyrite concentrate from the Singhbhum shear zone, India},
  url          = {http://dx.doi.org/10.1007/s12613-015-1065-3},
  volume       = {22},
  year         = {2015},
}