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UPGRADING OF A CONVENTIONAL PRECIPITATION LAYOUT IN EURALLUMINA REFINERY

Teodosi, A. and Candeloro, N.

The Eurallumina refinery was constructed in Sardinia, Italy, in early seventies, with Kaiser Aluminum technology, and a plant design similar to others already installed in Louisiana and Australia (QAL).The original rated plant capacity was 600,000 tonnes of smelter-grade alumina per annum, with a stated extra-capacity of +20% coming from experience.

The feed ore to the refinery has been Weipa bauxite since the beginning, including an intermediate period of 15 years during which, due to the interest of the Italian shareholder existing at that time, a portion of the African Boke bauxite was treated in blend with Weipa.