| 摘要 |
Agglomerates with carbonaceous material incorporated therein that contain a widely produced inexpensive high-VM coal of rich reserve and do not need metal oxide pulverization, excelling in strength after reduction; and a process for producing a reduced metal therefrom. In particular, agglomerates with carbonaceous material incorporated therein, composed of a carbonaceous material and a raw material containing metal oxides, such as iron ore, to be reduced are produced with the use of high-VM coal of 35 mass% or higher volatile component content as the carbonaceous material at an agglomeration pressure of at least 2 ton/cm2 so as to attain a porosity lowering to 35% or below. This porosity lowering is effective in the promotion of heat conduction within the agglomerates during the stage of high-temperature reduction by means of a rotary hearth furnace so that sintering between reduced metal portions is efficiently advanced across the whole region of the agglomerates. Thus, production of a reduced metal of high crushing strength can be realized.
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