CaO-P_2O_5-SiO_2-Fe_xO系およびCaO-P_2O_5-CaF_2-Fe_xO系固液共存不均一スラグの熱力学(<特集>マルチフェーズフラックスを利用した新精錬プロセス技術)

概要

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In steelmaking processes, because of environmental requirements and health considerations, there is a strong incentive to reduce slag volume. The key to meet this requirement is the better understanding of phosphorus removal, which relies on the knowledge of the thermodynamic properties of slags and fluxes used for dephosphorization. In this study, the liquidus compositions of the four-phase assemblages in the quaternary systems of CaO-P_2O_5-SiO_2-Fe_xO and CaO-P_2O_5-CaF_2-Fe_xO were determined by employing electron probe microanalysis. Measurements were also made on the Fe_xO activities by employing an electrochemical technique involving stabilized zirconia electrolyte.
社団法人日本鉄鋼協会の論文
2009-03-01