초록 ▼

The present invention relates to a process for forming glass-ceramic tiles. Fly ash containing organic material, metal contaminants, and glass forming materials is oxidized under conditions effective to combust the organic material and partially oxidize the metallic contaminants and the glass formin

The present invention relates to a process for forming glass-ceramic tiles. Fly ash containing organic material, metal contaminants, and glass forming materials is oxidized under conditions effective to combust the organic material and partially oxidize the metallic contaminants and the glass forming materials. The oxidized glass forming materials are vitrified to form a glass melt. This glass melt is then formed into tiles containing metallic contaminants.

대표청구항 ▼

[ What is claimed:] [1.] A process of forming glass ceramic tiles comprising:providing a spent ash containing organic material, metallic contaminants, and glass forming materials;oxidizing the spent ash under conditions effective to oxidize the organic material and to partially oxidize the metallic

[ What is claimed:] [1.] A process of forming glass ceramic tiles comprising:providing a spent ash containing organic material, metallic contaminants, and glass forming materials;oxidizing the spent ash under conditions effective to oxidize the organic material and to partially oxidize the metallic contaminants and the glass forming materials, wherein said oxidizing is carried out in a suspension preheater in which the ash containing the organic material, metallic contaminants, and glass forming materials is suspended in an oxidizing fluid;vitrifying the oxidized glass forming materials to form a glass melt;forming the glass melt into glass ceramic tiles containing metallic contaminants.