Thermodynamic evaluation of elemental distribution in a ferronickel electric furnace for the prospect of recycling pathway of nickel

Osamu Takeda, Xin Lu, Takahiro Miki, Kenichi Nakajima

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In this study, the elemental distribution of 26 elements in a ferronickel electric furnace was thermodynamically analyzed to determine the removability of impurities from secondary resources during smelting. Phosphorus was evaluated both thermodynamically and experimentally. It was found that Al, B, Ca, Ce, Cr, La, Mg, Mn, Nb, Si, Sr, Ta, Ti, U, V, and Zr were removed in slag phase, while Ag, Pb, and Zn were removed in gas phase. W and Mo could be removed in slag phase by increasing oxygen partial pressure. P was partially removed in a ferronickel slag that contained MgO. Most of the P was removed by the addition of CaO to the slag. In a case study, the recycling of secondary resources containing a large amount of P was found to be possible by the addition of CaO to the slag and by the adjustment of additive amount of secondary resources to the ferronickel ore.

Original languageEnglish
Pages (from-to)362-368
Number of pages7
JournalResources, Conservation and Recycling
Volume133
DOIs
Publication statusPublished - 2018 Jun

Keywords

  • Electric furnace
  • Ferronickel
  • Phosphorus
  • Recycling
  • Secondary resource
  • Thermodynamic analysis

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Economics and Econometrics

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