Original scientific paper

Direct reduction and extraction of iron from nickel smelting slag coupling of preparation of cementing materials using gangue composition

R. Shi ; School of Metallurgical Engineering, Xi’an University of Architecture and Technology, China
Y. Cui ; School of Metallurgical Engineering, Xi’an University of Architecture and Technology, China
J. Zhao ; School of Metallurgical Engineering, Xi’an University of Architecture and Technology, China
X. Li ; School of Metallurgical Engineering, Xi’an University of Architecture and Technology, China
C. Zou ; School of Metallurgical Engineering, Xi’an University of Architecture and Technology, China
Y. Yu ; School of Materials Science and Engineering, Shanghai University, China

Abstract

Aiming at the properties of Fe and SiO₂ in nickel slag, the process of preparing DRI by direct reduction nickel slag from coal base was proposed, and the component of gangue is used as raw material to prepare C₂S(belite) and C₃S(alite), which is a comprehensive utilization of nickel slag. The reduction reaction of iron coupling of the reaction of cementitious materials was realized through thermodynamic calculation and experiment. The reduction roasting products of nickel slag with iron, C₃S and C₂S as the main phase were obtained by reasonable batching and temperature control technology of reduction roasting reaction.

Keywords

direct reduction iron; extraction; nickel slag; calcium silicate; x-ray analysis

Hrčak ID:

246048

URI

https://hrcak.srce.hr/246048

Publication date:

4.1.2021.

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