The demand for coke in metallurgy and elsewhere in industry may be economically satisfied by organizing the production of special types of coke. One such special form is coke obtained from coal batch with the addition of an iron-bearing mineral, magnetite. The use of iron-bearing coke has certain practical benefits [1-3]. Such coke, which is highly reactive, is excellent in ferroalloy production and in ore sintering, for example. Production of such coke from mixtures of sintering gas coals at low metamorphic levels is also useful in increasing the proportion of sintering gas-grade coal in coking batch. In [4], the possibility of adding up to 15 percent charge-hole dust to the batch without loss of coke quality was demonstrated. At Nizhnetagil'sk metallurgical works, chamber coking of batch with 5,10, and 15 % charge-hole dust [5] produced iron-bearing coke of larger piece size than for coke from batch without added dust. The strength of the coke increased on adding up to 10 percent dust. It was shown in [6] that adding 10-15 percent iron ore instead of OS grade coal to the batch at Cherepovetsk metallurgical plant may yield considerable economic benefits.
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