| Issue |
Metall. Res. Technol.
Volume 115, Number 3, 2018
|
|
|---|---|---|
| Article Number | 310 | |
| Number of page(s) | 9 | |
| DOI | https://doi.org/10.1051/metal/2018014 | |
| Published online | 16 July 2018 | |
Regular Article
Study of the enrichment characteristics of sinter by alkali metal vapors
1
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,
100083
Beijing, PR China
2
Inner Mongolia First Machinery Group Corporation,
014032
Baotou, PR China
* e-mail: liu.zhengjian@hotmail.com
Received:
1
July
2017
Accepted:
26
January
2018
The existence forms and distributions of potassium (K) and sodium (Na) in sinter were studied by simulating the actual situations of K and Na cycle and enrichment in the blast furnace (BF). The results show that the K and Na vapor reacted with the main phase of the sinter and formed two “enrichment layers” in periphery, then the sinter samples were analyzed by means of XRD and SEM. The analysis results indicate that the main phases in light “enrichment layer” are K and Na compounds (ferrite, silicates and aluminates), iron oxide (Fe2O3) and silico-ferrite of calcium and aluminum (SFCA); while the dark “enrichment layer” mainly exists the potassium and sodium oxides. In addition, the adsorption of the sinter on K and Na vapor is the mixed adsorption of chemical and physical, and the chemical adsorption is the main adsorption method.
Key words: Alkali metals (K and Na) / sinter / enrichment area / adsorption
© EDP Sciences, 2018
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.