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72 Refractories/ceramics (properties, production, applications) refractory life and energy efficiency in order to increase the post combustion ratio. Coke is a most useful fuel source because it shows low dependence to post combustion ratio and low hydrogen content. The quality of hot metal would be expected to be similar to that of the blast furnace. The utilization of scrap was also possible to maximize the advantages of the present process which were high temperature and chemical dilution with hot metal. In the case of scrap, energy consumption increases slightly due to preheating. The concept consequently provides one possibility of integrating recyclable waste materials by the smelting reduction process.
98/01536
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