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 journalArticle

14 Citations (Scopus)

Abstract

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
Volume45
Issue number3
DOIs
StatePublished - Jan 1 1999

Fingerprint

Iron ores
Carbon
Iron
Phenolphthalein
Coal Tar
Heating
Coal tar
Smelting
Iron oxides
Temperature
Melting
Nitrogen
Freezing
Kinetics

ASJC Scopus subject areas

  • Biotechnology
  • Environmental Engineering
  • Chemical Engineering(all)

Cite this

Sugawara, Katsuyasu ; Morimoto, Koji ; Sugawara, Takuo ; Dranoff, Joshua S. / Dynamic behavior of iron forms in rapid reduction of carbon-coated iron ore. In: AICHE Journal. 1999 ; Vol. 45, No. 3. pp. 574-580.
@article{a15d01ca30db4a9db5174c32c8b13893,
title = "Dynamic behavior of iron forms in rapid reduction of carbon-coated iron ore",
abstract = "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.",
author = "Katsuyasu Sugawara and Koji Morimoto and Takuo Sugawara and Dranoff, {Joshua S}",
year = "1999",
month = "1",
day = "1",
doi = "10.1002/aic.690450314",
language = "English (US)",
volume = "45",
pages = "574--580",
journal = "AICHE Journal",
issn = "0001-1541",
publisher = "American Institute of Chemical Engineers",
number = "3",

}

Dynamic behavior of iron forms in rapid reduction of carbon-coated iron ore. / Sugawara, Katsuyasu; Morimoto, Koji; Sugawara, Takuo; Dranoff, Joshua S.

In: AICHE Journal, Vol. 45, No. 3, 01.01.1999, p. 574-580.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Dynamic behavior of iron forms in rapid reduction of carbon-coated iron ore

AU - Sugawara, Katsuyasu

AU - Morimoto, Koji

AU - Sugawara, Takuo

AU - Dranoff, Joshua S

PY - 1999/1/1

Y1 - 1999/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0033103987&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033103987&partnerID=8YFLogxK

U2 - 10.1002/aic.690450314

DO - 10.1002/aic.690450314

M3 - Article

AN - SCOPUS:0033103987

VL - 45

SP - 574

EP - 580

JO - AICHE Journal

JF - AICHE Journal

SN - 0001-1541

IS - 3

ER -