Masaaki Orito, and Kokiti Sano
As an example of inland poor iron ore, we studied Oeyama nickel containing yellowish earth which had the following composition: Fe 34.06% Ni 0.71% Si 7.55% Al 11.35% Mn 0.58% Cr 1.34% S 0.04% P 0.01% ignition loss 9.60%. The results obtained are as follows: (1) Dehydration velocity of this earth has a very large value and hydration velocity of once dehydrated one decreased with elevation of dehydration temperature. (2) Reduction velocity of the earth by hydrogen or carbon monoxide hads a large value. (3) Iron reduced by hydrogen at temperatures blow 950° is spotaneously combastible.
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