In situ spectroscopic analysis of the carbothermal reduction process of iron oxides during microwave irradiation

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The effects of microwave plasma induction and reduction on the promotion of the carbothermal reduction of iron oxides (α-Fe2O3, γ-Fe2O3, and Fe3O4) are investigated using in situ emission spectroscopy measurements during 2.45 GHz microwave processing, and the plasma discharge (such as CN and N2) is measured during microwave E-field irradiation. It is shown that CN gas or excited CN molecules contribute to the iron oxide reduction reactions, as well as to the thermal reduction. On the other hand, no plasma is generated during microwave H-field irradiation, resulting in thermal reduction. Magnetite strongly interacts with the microwave H-field, and the reduction reaction is clearly promoted by microwave H-field irradiation, as well as thermal reduction reaction.

Original languageEnglish
Article number49
JournalMetals
Volume8
Issue number1
DOIs
Publication statusPublished - 2018 Jan 11

Keywords

  • Carbothermal reduction
  • Emission spectrum
  • Iron oxides
  • Ironmaking
  • Microwaves

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'In situ spectroscopic analysis of the carbothermal reduction process of iron oxides during microwave irradiation'. Together they form a unique fingerprint.

Cite this