Cu-Fe-Sb 3元系スパイスと各種スラグ間の平衡ついて
1986 年 102 巻 1183 号 p. 591-595
詳細
1986 年 102 巻 1183 号 p. 591-595
As fundamental studies for the behaviour of antimony in reduction smelting and treatments of byproducts, the activities in a liquid Cu-Fe-Sb system and the distribution coefficients of antimony and copper between the speiss and slag phases were investigated. The activities were determined at 1423 K by using an isothermal-isopiestic method. The isocurves of antimony, copper and iron activities represented some characteristic features on a ternary Cu-Fe-Sb diagram. The distribution coefficients were measured at 1473 K by using three kinds of slag systems; iron silicate at silica saturation, calcium ferrite and barium ferrite. The compositions of antimony of the speiss phase equilibrating with slag ranged widely from NSb=0.25 at γ-iron saturation to NSb=0.6. The obtained distribution coefficients could be explained quite reasonably based on the fundamental thermodynamic quantities of the speiss and slag components.
