VITRIFICATION OF LIGNITE FLY ASH AND METAL SLAGS FOR THE PRODUCTION OF GLASS AND GLASS CERAMICS  

作　　者：A.Karamberi A.Moutsatsou 

机构地区：[1]Laboratory of Inorganic and Analytical Chemistry, Chemical Engineering Department, National Technical University of Athens, 9 Heroon Polytechniou Str., 157 73 Athens, Greece

出　　处：《China Particuology》2006年第5期250-253,共4页

摘　　要：This work focuses on the production of glass and glass-ceramics by using industrial wastes or by-products, e.g., two fly ashes from the combustion of lignite, a slag from the production of Fe-Ni and a slag from the making of steel. Vitrification took place at 1 350°-1450℃ and crystallization was achieved by heat treatment at 900, 950 and 1 000℃. The capability of the waste to be vitrified and subsequently devitrified was determined by XRD techniques. The crystalline phase depends greatly on the structure of the by-product and the heat treatment. The final products showed low leachability and good hardness.This work focuses on the production of glass and glass-ceramics by using industrial wastes or by-products, e.g., two fly ashes from the combustion of lignite, a slag from the production of Fe-Ni and a slag from the making of steel. Vitrification took place at 1 350°-1450℃ and crystallization was achieved by heat treatment at 900, 950 and 1 000℃. The capability of the waste to be vitrified and subsequently devitrified was determined by XRD techniques. The crystalline phase depends greatly on the structure of the by-product and the heat treatment. The final products showed low leachability and good hardness.

关 键 词：fly ash slag VITRIFICATION de-vitrification GLASS-CERAMICS 

分 类 号：TQ171[化学工程—玻璃工业]