Acid–base properties of molten oxides and metallurgical slags

摘要: The application of the Lux–Flood concept to acid–base reactions in oxide systems is discussed light spectroscopic information concerning “state” ions. In slag (e.g. molten silicates) it possible for basicity be expressed terms electron donor power as an optical (Λ), and not activity O2– CaO chosen reference unit basicity; Λ-values are either measured spectroscopically or calculated from equation Λ=ΣXiΛi, where Xi Λi equivalent fractions (assigned) values components. scale provides a means comparing indicators melts, rather analogous use Hammett acidity function (HO) strong protonic acids applicable multicomponent systems. Possible applications metallurgy exemplified by sulphide capacities (Cs) iron steelmaking slags. Data ≈ 130 blast furnace slags show good correlation between log Cs Λ, even which do contain SiO2. Evidence supplied that basicities can also derived ESCA measurements; obtained this way might useful assessing properties steel making