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Fused Alumina

Fused alumina is a granular material with a melting point of around 2 500°C and a hardness of 9 on the Mohs scale. It is used in a range of refractory bricks and monoliths and as abbrasive.
Australian Fused Materials, today owned by Japan Abrasive Company, ACAP (Alcoa of Australia) and Doral Minerals (owned by Iwatani International Corporation) was established in 1991 and now has a production capacity of 20 000 tonnes of fused alumina (corundum) per year. The plant is located at Rockingham, near Kwinana and the Alcoa refinery, some 40 km south of Perth.
The fused alumina is produced by fusing a low soda calcined alumina produced by the nearby Alcoa refinery in an electric arc furnace. The fused product is poured into ingots, crushed, sized and bagged.
It is a very energy intensive process requiring 2 000 kWh of electricity per tonne of product (at industry standard of A$0.06 kWh, is 12 per cent of market value).
About 80 per cent of production is exported and in 1992-93 AFM exported about 8 400 tonnes valued at $7.2m for use as abrasives and as refractory. Capacity has since been doubled to 20 000 tonnes.

Date ASIA EUROPE USA
18/04/2009 650-900 650-900 650-900
15/12/2008 650-720 650-720 650-720
30/10/2008 300-500 300-500 300-500
15/08/2008 435 435 435
30/07/2008 425 425 425
30/06/2008 405 405 405
30/05/2008 376 376 376
30/04/2008 376 376 376
30/03/2008 376 376 376
28/02/2008 376 376 376
30/01/2008 376 376 376




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