---

"Liquidus Surface of FeO-Fe2O3-SiO2-CaO Slags at Constant CO2/CO Ratios" Materials Transaction of JIM, Japan, in press
Akira Yazawa ¹ ; Florian Kongoli ² ;
¹Tohoku University, 16-32, Niizaka, Aoba-ku, Sendai, 981-0934 JAPAN
²FLOGEN Technologies Inc,1255 Laird Blvd., Ste.388, Mont-Royal, Quebec, Canada

Keywords: Liquidus, FeOx-SiO2 based slag, iron oxides, oxygen potential, CO2/CO, slag solidification, smelting

ABSTRACT

Liquidus surface of FeO-Fe2O3-SiO2-CaO slags is an important parameter in various smelting and converting processes. It helps not only to optimize the slag chemistry of current processes and their fluxing strategies but also to determine the availability of new slags for more advanced technologies. In our previous publications, the liquidus surface of some multicomponent iron oxide slags has been quantified at several constant oxygen potentials and the effect of the latter, ignored until that moment, was quantified along with the effect of some minor components. In this work, the liquidus surface of some iron oxide slags is quantified at constant CO2/CO ratios. This is a new convenient way for the quantitative description of the slag liquidus surface and the effect of several fluxes, especially in those processes, such as slag solidification, where oxygen potential changes continuously. This type of diagram also describes more dynamically the effect of oxygen potential, clarifies the relation between CO2/CO ratio and oxygen potential in terms of the liquidus surface (not widely understood by metallurgist today) and reduces the gap between laboratory work and industrial experience.

Cite this article as:
Akira Yazawa, Florian Kongoli (2003). "Liquidus Surface of FeO-Fe2O3-SiO2-CaO Slags at Constant CO2/CO Ratios". Materials Transaction of JIM, Japan, in press.

Note: For copies of full papers please contact secretary@FLOGEN.COM