Peter C. Hayes

TL;DR: The present review summarizes some of the outcomes of recent studies of the multi-component and multi-phase system containing PbO–ZnO–“Cu2O”–FeO–Fe2O3–CaO–SiO2–S and to develop a thermodynamic database as part of a computer package that can be used to assist in optimization of all stages of the value chain.

TL;DR: The phase equilibria in the ZnO-FeO-Al2O3-CaO-SiO2-MgO system have been determined experimentally in equilibrium with metallic iron Synthetic slags were equilibrated at a high temperature, quenched and then the compositions of the phases in equilibrium were measured using electron probe X-ray microanalysis as discussed by the authors.

TL;DR: In this article, an experimental study was undertaken to investigate the gas/matte/spinel equilibria in the Cu-Fe-O-S system at 1473 K (1200 °C), P(SO2) = 0.25 ǫ atm, and a range of oxygen partial pressures.

TL;DR: In this paper, the effect of Al2O3 concentrations in high zinc fayalite slags is identified and the results are presented in a form of pseudo- ternary sections ZnO(FeO)(Al 2O3 + CaO+ SiO2) with CaO/SiO2 = 0.55 and (CaO + SiO 2)/Al2O 3 = 5.0 and 3.5.

TL;DR: In this paper, the phase equilibria in the Al2O3-CaO-Li2O-SiO2 multi-component system with MnO-anorthite primary phase fields were determined.