Slag Chemistry of HighAlumina Iron Silicate Slags at 1300 °C in WEEE Smelting. ... and solid aluminairon spinel directly by the Electron Xray Microprobe technique and provide novel phaseequilibrium data for the poorly known intermediate oxygen pressure range from air to iron saturation. ... Zhao B, Hayes P, Jak E (2013) Effects of CaO, Al ...