Abstract
We have prepared a unique iron ore-carbon composite (IOC) from a low grade iron ore by inserting a thermoplastic carbonaceous material into the slit like pores of 0.8 nm width that are formed by dehydration of the iron ore. The IOC prepared at 500 °C consists of layered Fe3O4 and coke, coming from the plastic carbonaceous material and filling the pores. In inert atmospheres the layered Fe3O4 in the IOC is reduced to Fe by solid-solid reaction between the layered Fe3O4 and the coke at less than 900 °C. In oxidizing reagents such as CO2 and H2O, the coke is gasified very rapidly by catalytic effect of Fe3O4. The mechanism and the rate of the gasification of the unique coke were examined.
