Abstract
The smelting reduction rate of Cr ore in a top and bottom blowing converter was quantitatively estimated by a 600 kg scale fundamental experiment and 100 t scale industrial furnace. The change of Cr oxide in the slag with time showed zero order reaction kinetics. The activation energy was about 210 kJ/mol. The rate increased with the increase in amount of carbon for reduction and the decrease of left bracket %Cr right bracket . According to these results, it is postulated that the transfer of Cr oxide in the molten slag phase to the carbon-slag and metal-slag interfaces was the rate controlling step.
| Original language | English |
|---|---|
| Pages (from-to) | 672-679 |
| Number of pages | 8 |
| Journal | Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan |
| Volume | 74 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1988 Jan 1 |
| Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Metals and Alloys
- Materials Chemistry
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Cite this
Kitamura, S. Y., Arai, T., Matsuo, M., Sato, N., Okohira, K., & Ishikawa, H. (1988). QUANTITATIVE ESTIMATION ABOUT THE INFLUENCE OF VARIOUS FACTORS ON THE SMELTING REDUCTION RATE OF Cr-ORE BY TOP-AND-BOTTOM BLOWING CONVERTER. Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 74(4), 672-679. https://doi.org/10.2355/tetsutohagane1955.74.4_672