Thermodynamic characteristics of ferronickel slag sintered in the presence of Magnesia

Foquan Gu, Zhiwei Peng, Yuanbo Zhang, Huimin Tang, Lei Ye, Weiguang Tian, Guoshen Liang, Joonho Lee, Mingjun Rao, Guanghui Li, Tao Jiang

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)


The rotary kiln-electric furnace (RKEF) process has undergone a rapid development during the past decade, producing a significant quantity of ferronickel slag. At present, the ferronickel slag has become the fourth largest industrial solid waste in China with a utilization ratio of less than 10 wt%. It is urgent to seek an efficient method for utilization of ferronickel slag. In this study, the thermodynamic characteristics of ferronickel slag sintered in the presence of magnesia (additive) for preparing refractory materials were assessed by calculating relevant thermodynamic functions and phase diagrams. The thermodynamic results showed that by sintering ferronickel slag with the addition of magnesia at appropriate temperatures, it is possible to promote the formation of forsterite and spinel phases, which would contribute to high refractoriness of the refractory materials derived from the slag.

Original languageEnglish
Title of host publicationMinerals, Metals and Materials Series
PublisherSpringer International Publishing
Number of pages10
Publication statusPublished - 2019 Jan 1

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696


  • Ferronickel slag
  • Phase diagram
  • Refractory materials
  • Sintering
  • Thermodynamic characteristics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry


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