![]() There are variants of these processes which are described on the websites of the various technology providers. The Circored and Finmet / Finored gas-based processes utilize iron ore fines as feedstock.The SLRN coal-based rotary kiln process uses lump ore and, increasingly, pellets as feedstock. The Midrex® and Energiron gas-based processes use predominantly iron ore pellets as feedstock, but sometimes with inclusion of lump ore in the furnace charge. ![]() Illustrations of the principal processes are shown below. Overview of direct reduction process types Generic illustrations of the types of process are shown in the graphics below. coal based rotary kiln furnaces (mainly in India) - accounting for 24% of 2019 production.This gives LKAB a favourable position as regards the production of low silica pellets for direct, reduction. ![]()
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