Aker Wirth supplying heavy duty slurry pumps for Saudi Ma’aden Bauxite & Alumina refinery

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Aker Wirth has received an order from Saudi Arabia to supply 11 piston-diaphragm pumps to Ma’aden Bauxite & Alumina Co for its refinery project. Eight pumps will be used as tube digester pumps in the Bayer process, and will pump the bauxite ore at a temperature of around 100°C. Three pumps will pump red mud to the disposal site, again at a temperature of around 100°C. Red mud is the waste product generated during digestion of bauxite. Each pump is driven by a 1,500-kW motor and has a total weight of some 105 t. (more…)