Properties of Fluxes Used in Molten Aluminium Processing T. Utigard University of Toronto, Canada Gaseous and solid fluxes are important in degassing, demagging and fluxing of aluminum. Physical and chemical properties of various flux components are reviewed. The thermodynamics of aluminum refining have been analyzed in terms of the behavior of Na, Mg and Ca. The coalescence of aluminum drops in salt fluxes improves with fluoride additions. With increasing MgCl2 contents in the flux, the effects of NaF and KF additions become much less pronounced. |