STUDIES OF THE PROCESSES OF HIGH-TEMPERATURE SOLID-PHASE REDUCTION OF CHROMIUM ORE USING THE SHUBARKOL DEPOSIT FOR COAL RECOVERY
Annotation
The data accumulated to date on the thermodynamics and kinetics of the reduction of solid metal oxides by carbon-containing materials indicate the extreme complexity of this process. The reduction process is a combination of many interrelated stages, depending on the properties of the substance and conditions (pressure, temperature, concentrations of gases and condensed solutions; the presence of intermediate substances, reduction products; completeness of reduction; porosity, size of pieces; movement of gases, etc.). The leading role of the stages can change, which does not allow the formation of a single recovery mechanism that is fair in all cases.
The article is devoted to the study of the processes of solid-phase reduction of chromium ore using coal from the Shubarkol deposit for reduction. The explanatory note provides a description of the methodology for conducting laboratory studies, the calculation of charge materials and the results of studies in the form of tables and illustrative drawings. The results of solid-phase reduction of chromium from chromium ore concentrate (Cr2O3 - 52.8 %) at temperatures of 1450 °C, 1500 °C and 1600 °C are presented. Data on the effect of holding time on the degree of chromium reduction are presented. The materials of the article can be used by metallurgical engineers and scientists involved in the processes of improving the technology of ferrochromium production.
Author
Esengaliev D.A.
Kobegen E.
Kelamanov B.S.
DOI
https://doi.org//10.48081/LJDZ8744
Keywords
chromium
recovery
holding time
chromium ore concentrate
charge calculation
Year
2023
Номер
Issue 1
580
0
For citation:
Esengaliev D.A., Kobegen E., Kelamanov B.S. STUDIES OF THE PROCESSES OF HIGH-TEMPERATURE SOLID-PHASE REDUCTION OF CHROMIUM ORE USING THE SHUBARKOL DEPOSIT FOR COAL RECOVERY // Scientific journal "Science and Technology of Kazakhstan". - 2023 - №1 - С. 86–98. https://doi.org//10.48081/LJDZ8744
Copied!