CHARACTERIZATION OF PRODUCTS AND ANALYSIS OF SULFUR VAPORIZATION FROM AN IRON SULFIDE ORE

Abstract

The total extraction of sulfur by vaporization from iron sulfide ores leads to a residue that is constituted in great part of iron. The aim of this article is to follow up the secondary metals composition in the residue during the sulfur extraction. When the pyrrhotite is treated alone, copper is completely evaporated after Cu₂S decomposition. While in the presence of carbon, iron is present as the core form in the iron sulfide. In this case, the kinetic of vaporization is fast and no secondary metals trace is detected in the iron core.

Keywords:

• auger electron spectroscopy (AES)
• characterization
• energy-dispersive X-ray spectroscopy (EDS)
• extractive metallurgy
• iron sulfide
• thermal treatment of materials
• wavelength-dispersive spectroscopy (WDS)

Acknowledgement

The authors extend their gratitude to ELF for financial support.