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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/25797

Title: Decarburization and Melting Behavior of Direct-reduced Iron Pellets in Steelmaking Slag
Authors: Sharifi Kiasaraei, Erfan
Advisor: Barati, Mansoor
Department: Materials Science and Engineering
Keywords: Steelmaking
Issue Date: 11-Jan-2011
Abstract: An experimental study was undertaken to quantify the rate of DRI decarburization in a steelmaking slag using the constant–volume pressure increase technique. Experiments were conducted by dropping DRI pellets into molten slag at temperatures from 1500°C to 1600°C. Further experiments were carried out in which the DRI pellets were preheated while the slag temperature remained constant. The effect of initial carbon content and preheating temperature of the DRI on the reaction rate was investigated. The decarburization of DRI appears to comprise of two stages; reaction with the FeO of DRI, followed by further decarburization through the iron oxide of slag. Carbon has a significant effect on the kinetics of both stages while the preheating temperature mainly influences the rate of the reaction between FeO and carbon inside the pellet.
URI: http://hdl.handle.net/1807/25797
Appears in Collections:Master

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