Molten Oxide Electrolysis Using Copper-Containing Carbon-Saturated Molten Iron Anode
This study focused on the use of molten oxide electrolysis (MOE) as a low-cost, clean, continuous separation method suitable for incorporation into actual steelmaking processes. We discussed interfacial behavior from molten iron to slag by anodic polarization of the copper-containing carbon-saturate...
Saved in:
Published in | Journal of the Electrochemical Society Vol. 170; no. 2; pp. 23501 - 23509 |
---|---|
Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
IOP Publishing
01.02.2023
|
Online Access | Get full text |
Cover
Loading…
Summary: | This study focused on the use of molten oxide electrolysis (MOE) as a low-cost, clean, continuous separation method suitable for incorporation into actual steelmaking processes. We discussed interfacial behavior from molten iron to slag by anodic polarization of the copper-containing carbon-saturated molten iron (metal phase)–molten oxide (slag phase) interface and investigate the operating mechanism of MOE. The basic constant potential electrolysis between the metal phase (Fe-10 wt% Cu-5.0 wt% C) and slag phase (27 wt% CaO-27 wt% SiO
2
−45 wt% Al
2
O
3
−1.0 wt% CaS) by maintaining 1–2 V vs Pt at 1773 K in an Ar atmosphere is described. When polarized, a high concentration of dispersed Cu-rich phase was detected locally near the metal–slag interface but not in the phase center of the metal. At the metal–slag interface, the energies of the Fe-rich and Cu-rich phase–slag interfaces decreased due to electric capillarity, and the Cu-rich phase distributed near the interface. |
---|---|
Bibliography: | JES-108998.R1 |
ISSN: | 0013-4651 1945-7111 |
DOI: | 10.1149/1945-7111/acb84f |