Formation of pale foam glass from colored glass cullet

Abstract

The decolorization of foam glasses made from green and amber glass cullets was attempted. It was found that the addition of silicon carbide (SiC) and zinc oxide (ZnO) as decolorizing agents was effective for the decolorization of both the foam glasses made from green and amber glasses. Therefore, the addition of SiC and ZnO was suitable for the decolorization of foam glass made from the mixture of green, amber and colorless glasses.