High-purity bubble alumina bricks are designed to withstand high temperatures and demanding environments.
Alumina bubbles are used in three different types of refractory products—monomonolithics, pressed shapes and loose-fill insulation. Monolithics and pressed shapes are the two major applications in the bubble alumina bricks and refractories market.
Bubble alumina bricks are used to cast monolithic shapes such as burner blocks for kilns and covers for coreless induction furnaces. They are also used to cast backup linings for many types of reactors, especially those with hydrogen atmospheres. Bubble alumina bricks are used to cast backup linings for secondary ammonia reformers, carbon black reactors, waste heat boiler tube sheets, controlled atmosphere furnaces, and other high-temperature backup linings.
The insulating firebrick (bubble alumina bricks) that contains high -alumina bubbles are often used as the working lining in ceramic kilns, but are used mainly as backup linings in gasifiers for coal and petroleum coke, gas/oil (with heavy residue feed stock), and industrial waste. These bubble alumina bricks are also used in hazardous waste and fluorine processing incinerators, hydrogen generators, auto thermal reactors for methanol production, and ammonia reformers.
Bubble alumina bricks are used to press ceramic tile s for lining the combustion chambers within gas turbines, resulting in higher engine efficiency and lower emissions (NOx) than metal-shielded combustion chambers, and in backup linings in sintering furnaces for nuclear fuels. Bubble alumina bricks are also used in both working linings and backup linings in sintering furnaces for powder metallurgy and metal injection molded parts, and can also be listed used in the gasifier applications previously.
