Thermal reduction of mechanically activated cinnabar (HgS) and stibnite (Sb2S3)

Authors
Balaz, P Godocikova, E
Citation
P. Balaz et E. Godocikova, Thermal reduction of mechanically activated cinnabar (HgS) and stibnite (Sb2S3), J THERM ANA, 65(1), 2001, pp. 51-57
Citations number
17
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
65
Issue
1
Year of publication
2001
Pages
51 - 57
Database
ISI
SICI code
1388-6150(2001)65:1<51:TROMAC>2.0.ZU;2-3
Abstract
The reduction of cinnabar (HgS) and stibnite (Sb2S3) by hydrogen was invest igated. These investigations were performed in the temperature region 636-7 65 K for cinnabar and in the region 825-954 K for stibnite. It has appeared that the mechanical activation positively affects the thermal reduction of the sulphides. The thermal decomposition of HgS is accompanied by a change in mechanism taking place at 744 K. As to Sb2S3, the change in mechanism i n the investigated temperature region was not observed.