Determination of Direct Reduction Conditions of Mill Scale

Author:

Yucel Onuralp1,Demirci Fahri1,Turan Ahmet12,Alkan Murat1

Affiliation:

1. 1Metallurgical and Materials Engineering Department, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey

2. 2Yalova Community College, Yalova University, 77100, Yalova, Turkey

Abstract

AbstractIn this study, experiments were conducted to understand the optimum direct reduction conditions of mill scale which is formed on the surface of the materials produced by continuous casting and which contains iron (II) and iron (III) oxides. Experiments were performed in a rotary kiln and anthracite and metallurgical coke were used as carbon source. The eligible parameters like process temperature, process duration, reductant type and quantity were tried to determine. Obtained reduced iron pellets were characterized by using EPMA, XRD and chemical analysis techniques. The highest metallization degrees were observed as 97.4% for the stoichiometrically 200% anthracite added experiments and as 95.5% for the stoichiometrically 200% metallurgical coke added experiments at 1423 K.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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