Glass Composition and Crystallized Glass Composition Having Low Melting Temperature Using Fly Ash of Power Station and Method for Making the Same

摘要

PURPOSE: Provided is a production method of crystallized glass composition with high strength and abrasion resistance by using coal ash, shells and crystallizing agent. CONSTITUTION: The low melting point glass is produced by the following steps of: mixing 70-90wt.% of coal ash generated from steam power plant with 10-30wt.% of sintered shells; calcining the mixture at 950deg.C for 3hrs to remove harmful gas; sintering the mixture at 1400-1500deg.C. The crystallized glass is produced by the following steps of: mixing 50-90wt.% of coal ash, 10-30wt.% of shells and 5-11wt.% of crystallizing agent; calcining the mixture at 950deg.C for 3hrs to remove harmful gas; sintering at 1400-1500deg.C; and thermal treating at 950-1050deg.C for 30-240min for crystallization.