Concentration of Ores: Hydraulic Washing, Froth Flotation with .. than the metal it consists of many other impurities such as sand, grit, clay, rocks etc. . The lighter particles of the gangue wash away in the running water. . The first step is to heat the bauxite ore to temperatures of 200°c along with a sodium.washing clay of bauxite ore,Halloysite in North America, Hawaii, and the Caribbean RegionUNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1984 . Diagrammatic section of residual kaolin deposits in the Arkansas bauxite district. 10. . Geologic sections of the Hobart Butte kaolinitic clay deposits, Oregon. 36.
washing clay of bauxite ore