Vitrifiable materials melting and refining

摘要

All or part of the thermal energy required for melting the materials is supplied by the combustion of fossil fuel(s) with at least one combustive gas. The fuel/gas or the gaseous products derived from combustion are injected beneath the mass of vitrifiable materials. Refining of melted materials incorporates at least one step of pressurization at sub-atmospheric pressure. An Independent claim is included for apparatus used to implement the method of melting and refining vitrifiable materials.