Recycling Nonferrous Oxides in Iron and Steel Melting

Abstract

Direct reduction of Cu, Ni, W, V and Mo oxides from various industrial wastes the melting of iron and steel in different furnaces was studied by thermodynamic computation and experimental methods. Thermodynamics was used to compute the final partition of the alloying additions between iron-carbon melts and oxides contained in the slag. It was shown that the sequence of the reduction reactions depended on the melt composition as well as temperature. Kinetic factors limited recovery in induction melting, while experimentally measured final partition coefficients were close to equilibrium during EAF melting. The possibility of the partial substitution of expensive ferroalloys, by different industrial wastes containing nonferrous oxides, was evaluated in foundry and mini-mill conditions.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Alloying; Direct Reduction; Ferroalloys; Foundries; Industrial Wastes; Nonferrous; Oxides; Partitions; Thermodynamics

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 The Minerals, Metals & Materials Society (TMS), All rights reserved.

Publication Date

01 Jan 2006

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