Dynamic behavior of iron forms in rapid reduction of carbon-coated iron ore

Katsuyasu Sugawara*, Koji Morimoto, Takuo Sugawara, Joshua S. Dranoff

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


As a part of a fundamental study of the kinetics of rapid smelting reduction of iron oxide with solid carbon, particles of carbon-coated iron ore were prepared by heating a mixture of iron ore and phenolphthalein (a model compound of coal tar) at 773 K in a nitrogen stream. The reduction behavior of the carbon-coated iron ore particles during rapid heating was studied using a drop-tube reactor at temperatures from 1,073 to 1,773 K. The reduction extent increased rapidly with the beginning of melting at temperatures over 1,650 K, reaching 60% at 1,773 within 0.7 s. The observed changes in the distribution of iron states in the particles were successfully simulated.

Original languageEnglish (US)
Pages (from-to)574-580
Number of pages7
JournalAIChE Journal
Issue number3
StatePublished - Mar 1999

ASJC Scopus subject areas

  • Biotechnology
  • Environmental Engineering
  • General Chemical Engineering


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