Influence of Coal and Reduction Parameters on Lateritic Limonite Type Rock in Producing Nugget Iron for Thin-wall Ductile Iron Material

Johny Wahyuadi Soedarsono, Jennifer Adji Kawigraha, Rianti Dewi Sulamet-Ariobimo, Andi Rustandi, Seto Tjahyono, Aidil Zamri


Finding iron sources from other ores is important because of the depletion of iron ore. One such source is lateritic rocks. Lateritic rocks are a nickel source, but owing to their high iron content, they are promoted as an iron source. This research was conducted to investigate the effect of reduction parameters on lateritic rock behaviour. Lateritic limonite rock is used. Process parameters include particle size, temperature, holding time and ratio of carbon. Particle size is varied in 120, 170, 200 and 270 meshes. Temperatures are 600, 800, 1000, 1100 and 1200oC. Holding times used are 60 and 90 minutes. The variable ratios of carbon to ore are 1:1, 2:1, and 3:1. The results show that among all the parameters, temperature has a significant effect and holding time displays the weakest effect.


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