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Table 2 Element variations of raw and treated ilmenite samples

From: Applicability of carbothermic reduction for upgrading Sri Lankan ilmenite ores: towards converting ilmenite into synthetic rutile by mechanical activation

Elements (wt%) Raw ilmenite M1/800 M2/800 M3/800 M4/800 M1/1000 M2/1000 M3/1000 M4/1000 M1/1200 M2/1200 M3/1200 M4/1200
SiO2 3.48 3.46 3.46 3.33 3.44 3.71 3.63 3.60 3.59 4.59 3.94 3.88 3.90
TiO2 49.18 47.28 46.57 45.60 46.89 48.03 47.23 46.73 47.52 47.70 48.18 47.95 48.03
Al2O3 1.18 1.24 1.11 1.11 1.19 1.27 1.25 1.19 1.28 1.47 1.37 1.36 1.19
Fe2O3 (T) 43.71 42.50 41.85 41.03 42.17 43.03 42.53 41.89 42.58 42.70 42.80 42.62 42.85
MnO 0.85 0.81 0.80 0.78 0.81 1.05 0.82 0.80 0.81 0.83 0.83 0.82 0.83
MgO 0.80 0.78 0.76 0.75 0.79 0.81 0.82 0.81 0.81 0.86 0.86 0.85 0.80
CaO 0.16 0.20 0.18 0.19 0.18 0.21 0.21 0.21 0.20 0.36 0.27 0.24 0.25
Na2O 0.01 0.05 0.05 0.04 0.05 0.06 0.05 0.05 0.05 0.09 0.05 0.05 0.06
K2O 0.03 0.12 0.12 0.13 0.13 0.12 0.12 0.14 0.12 0.20 0.15 0.18 0.15
P2O5 0.09 0.10 0.10 0.09 0.09 0.10 0.09 0.09 0.09 0.09 0.10 0.09 0.10
V2O5 0.21 0.21 0.20 0.21 0.21 0.22 0.21 0.21 0.22 0.20 0.21 0.21 0.21
Cr2O3 0.06 0.07 0.06 0.06 0.06 0.07 0.06 0.06 0.06 0.06 0.06 0.06 0.06
Co3O4 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01
CuO < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005
NiO < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 0.010 0.004 0.005 < 0.003 0.003 0.004 < 0.003 < 0.003
LOI 1.61 1.30 4.03 5.02 2.00 0.02 1.96 2.67 0.78 0.05 0.04 0.06 0.05
Total 101.38 98.13 99.30 98.35 98.02 98.72 99.00 98.47 98.12 99.21 98.87 98.38 98.49