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Activities of Fe x O in complex slags used during the final stages of external dephosphorization of hot metal
Author(s) -
Iwase Masanori,
Yamada Noriaki,
Akizuki Hiroshi,
Ichise Eiji
Publication year - 1984
Publication title -
archiv für das eisenhüttenwesen
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0003-8962
DOI - 10.1002/srin.198405377
Subject(s) - chemistry , metal , thermodynamics , physics , organic chemistry
Measurements of the activities of Fe x O in complex slags during the final stages of external dephosphorization by using a disposable electrochemical oxygen probe. Positive deviations of the Fe x O activities from the Raoult law. Iso‐activity curves drawn on the “ternary” diagram, (CaO + MgO + MnO + CaF 2 ) + Fe x O + (SiO 2 + P 2 O 5 ) at 1673 K. Calculations of the activities of P 2 O 5 in complex slags with an assumption of thermodynamic equilibrium between slags and hot metal. Beneficial effect of CaF 2 in the slags with respect to lowering of the P 2 O 5 activity.