Conference Proceedings
12th International Conference of Molten Slags, Fluxes and Salts MOLTEN 2024 Proceedings
Conference Proceedings
12th International Conference of Molten Slags, Fluxes and Salts MOLTEN 2024 Proceedings
Activities of components in Ca2SiO4-Ca3P2O8 solid solution at 1573 K
In steelmaking processes, it is known that P2O5 in dephosphorisation slags often exists in solid
solutions between Ca2SiO4 and Ca3P2O8,SS, and thus the solid solutions play an
important role in the dephosphorisation reaction. Hence, the knowledge of thermochemical
properties, ie phase relations and activities of components, in slags containingSS are
necessary for the effective removal of phosphorus from hot metal. In this study, the P2O5 activities
inSS were measured through the gas equilibrium method.
In the present experiment, oxide samples were equilibrated with Cu-P liquid alloys at 1573 K under
a stream of Ar + H2 + H2O or Ar + H2 + CO2 gas mixture in which oxygen potential was fixed and
then equilibrium phosphorus concentrations in the Cu-P alloys, [mass%P]Cu, were analysed with
ICP-OES.
solutions between Ca2SiO4 and Ca3P2O8,
important role in the dephosphorisation reaction. Hence, the knowledge of thermochemical
properties, ie phase relations and activities of components, in slags containing
necessary for the effective removal of phosphorus from hot metal. In this study, the P2O5 activities
in
In the present experiment, oxide samples were equilibrated with Cu-P liquid alloys at 1573 K under
a stream of Ar + H2 + H2O or Ar + H2 + CO2 gas mixture in which oxygen potential was fixed and
then equilibrium phosphorus concentrations in the Cu-P alloys, [mass%P]Cu, were analysed with
ICP-OES.
Contributor(s):
K Saito, M Hasegawa
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- Published: 2024
- Unique ID: P-04143-M0K1B2