Method for Producing Ceramic Tiles from Recycled Industrial Waste

Abstract

The present invention relates to process for forming high-quality porcelain tiles from a body formulated by mixtures of kaolin, steel slag (waste with composition: Total Fe=33.34 wt.%, CaO=27.22 wt.%, Si0.=20.80 wt.%, ALO:=9.19 wt.%, MnO=3.98 wt.%, MgO=2.06 wt.%, Cr-0.=1.23 wt.% and L.O.1.=0.01 wt.%), quartz, and feldspar. This invention recycles steel slags as a partial replacement for ball clay (kaolin) to produce eco-friendly porcelain tiles via the conventional powder compaction method. The raw materials are intimately mixed for approximately 25 minutes, pressed into rectangular plates at a mold pressure of 40 MPa, and sintered at temperatures ranging from 1000 to 1300°C ህቪከ soaking times ከርጠ %2 hr to 3 hrs. The steel slag exhibits tremendous positive effects on the properties of the resulting porcelain tiles, enabling lower sintering temperatures, reduced energy consumption, and superior mechanical and durability characteristics while addressing environmental pollution from industrial waste stockpiles.