A Mathematical Model for Reactions During Top-Blowing in the AOD Process: Derivation of the Model

Tutkimustuotos: Lehtiartikkelivertaisarvioitu


  • Ville-Valtteri Visuri
  • Mika Järvinen

  • Aki Kärnä
  • Petri Sulasalmi
  • Eetu-Pekka Heikkinen
  • Pentti Kupari
  • Timo Fabritius


  • University of Oulu
  • Outokumpu Stainless Oy


In an earlier work, a fundamental mathematical model was proposed for side-blowing operation in the argon–oxygen decarburization (AOD) process. The purpose of this work is to present a new model, which focuses on the reactions during top-blowing in the AOD process. The model considers chemical reaction rate phenomena between the gas jet and the metal bath as well as between the gas jet and metal droplets. The rate expressions were formulated according to a law of mass action-based method, which accounts for the mass-transfer resistances in the liquid metal, gas, and slag phases. The generation rate of the metal droplets was related to the blowing number theory. This paper presents the description of the model, while validation and preliminary results are presented in the second part of this work.


JulkaisuMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
TilaJulkaistu - 1 kesäkuuta 2017
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 14302226