rotary kiln bauxit no.1 Al2O3:83%above Fe2O3:1.8%below B.D:3.0G/CCabove withinK2O+NaO:0.4% withinTiO2:4% no.2 Al2O3:85%above Fe2O3:1.8%below B.D:3.15G/CCabove withinK2O+NaO:0.4% withinTiO2:4% no.3 Al2O3:86%above Fe2O3:1.6%below B.D:3.2G/CCabove withinK2O+NaO:0.4% withinTiO2:4% no.4 Al2O3:87%above Fe2O3:1.6%below B.D:3.25G/CCabove withinK2O+NaO:0.4% withinTiO2:4%