Saint-gobain Glass France

Ramon Rodriguez Cuartas

Pierre Jeanvoine

Tanguy Massart

Christian Bouigeon

Juan Luis Fernandez Suarez

Armando Rodriguez Rodriguez

Juan-Andres Nunez Hernandez

The invention relates to a process for manufacturing flat glass rich in lead oxide, comprising the continuous floating, in a float plant with a neutral gaseous atmosphere, of a glass comprising at least 30% lead oxide by weight on a bath of molten metal having a higher density than that of the glass. The invention allows flat glass rich in lead, useful for protection against X-rays, to be produced.

Lead-containing flat glass produced by a metal bath float glass process

The subject of the invention is a process for melting and refining vitrifiable materials, such that all or part of the thermal energy necessary for melting the said vitrifiable materials is supplied by the combustion of fossil fuel(s) with at least one oxidizer gas, the said fuel(s)/gas or the gaseous products resulting from the combustion being injected below the level of the mass of vitrifiable materials (). The refining of the vitrifiable materials after melting takes place at least partly in the form of a 'thin layer'. The invention also relates to the device for implementing the process and to its applications.

Method and device for melting and refining materials capable of being vitrified

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Aviles, Spain

Ramon Rodriguez Cuartas