Amount of chromium atom: 52 iron atomic weight: 56
u
Cr2O3 :
M % u
Fe2O3 :
N % u
Cr ×2 / Cr× 2 + O ×3 =0.6842 u
Fe ×2 / Fe× 2 + O× 3 =0.7 Cr / Fe = M × 0.6842 / N × 0.7 example:
Set a batch of ore containing
50% Cr2O3 ,
Containing
15% Fe2O3 , calculating ferrochrome ratio
M = 50% N = 15 % Cr / Fe = M × 0.6842 / N × 0.7 = 50% × 0.6842 / 15% × 0.7 = 0.342 / 0.105 = 3.25 Commercial Business Car Wash
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