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NEW EXTRA CLEAR GLASS REFRACTORY SOLUTIONS

L. Massard , M.Gaubil
Saint-Gobain CREE, Cavaillon, France

Extra clear glasses are widely used for solar applications.  The extra clear glass properties (higher transmission coefficient, lower glass redox) would induce an evolution of glass furnace running conditions. As a consequence, the refractory interface temperature and glass flow rate will increase and the glass capability of dissolving oxygen bubble will be lower.  Theses new conditions would affect the lifetime of glass furnace and glass quality.

New fused cast AZS and high zirconia refractories have been developed for these applications to improve and secure the lifetime of glass furnace and the glass quality regarding oxygen bubbles and AZS stones defects. In this paper, SEFPRO will present the properties of these new products.