Waste fluorescent glass and shell derived glass-ceramics

We prepared glass-ceramics by using fluorescent glass and waste shell as starting materials to recycle waste fluorescent glass containing harmful Hg to human body and waste shell, and to resolve environmental problems. Pressed specimens after quenching and grinding were heat treated at 800 degreesC, 900 degreesC and 1000 degreesC for 1 h, respectively. beta-wollastonite, gehlenite and sodium calcium silicate were observed by X-ray diffraction studies. Surface morphology and chemical composition were evaluated by field emission-scanning electron microscopy and energy dispersive X-ray spectrometer. (C) 2002 Kluwer Academic Publishers.