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EVALUATION OF ALUMINA QUALITY PARAMETERS

Bakkerud, O.M., Larsen, J.A., and Lillebuen, B.

The physical and chemical properties of alumina from many refineries around the world are used in a discussion of the main quality parameters for the four Hydro Aluminium smelters in Norway.

The present evaluation and testing process preceding introduction of all new alumina qualities are described, and a review is given of the remaining issues that call for more research and investigations regarding the impact of alumina on smelter performance.