Patent ID: 8206641

Claim:
A method for making a ceramic clay brick using waste battery powder, the method comprising: obtaining waste batteries and pulverizing the waste batteries to obtain a pulverized powder; pulverizing a clay mixture to a particle size ranging from about 0.5 mm to about 2 mm using a roller mill, wherein the clay mixture includes about 70% by weight of clay, about 20% to about 28% by weight of sand or sandy clay, and about 2% to about 10% by weight of the pulverized powder for being used as a brick colorant; mixing and kneading the pulverized clay mixture with water to give a moisture content of about 18% to about 22%, then extruding the kneaded clay mixture in a brick form using a vacuum extrusion pug mill and cutting the extruded clay mixture into bricks having a predetermined size; putting the bricks into a drying chamber to dry the bricks for about 30 hours to about 40 hours until the bricks have a moisture content of about 0% to about 5%; and preheating the dried bricks at a temperature ranging from room temperature to about 1000° C., burning the preheated bricks at a temperature ranging from about 1000° C. to about 1200° C., and cooling the burned bricks at a temperature ranging from about 1200° C. to room temperature in a continuous kiln.