Cyclone reduction of taconite. Final report

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A cyclone reactor system for the partial reduction and melting of taconite concentrate fines has been engineered, designed and operated. A non-transferred arc plasma torch was employed as a heat source. Taconite fines, carbon monoxide, and carbon dioxide were fed axially into the reactor, while the plasma gas was introduced tangentially into the cyclone. The average reactor temperature was maintained at above 1400{degrees}C, and reduction experiments were performed under various conditions. The influence of the following parameters on the reduction of taconite was investigated experimentally; carbon monoxide to carbon dioxide inlet feed ratio, carbon monoxide inlet partial pressure, and average ... continued below

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203 p.

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Taylor, P. R.; Bartlett, R. W.; Abdel-latif, M. A.; Hou, X. & Kumar, P. May 1995.

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Description

A cyclone reactor system for the partial reduction and melting of taconite concentrate fines has been engineered, designed and operated. A non-transferred arc plasma torch was employed as a heat source. Taconite fines, carbon monoxide, and carbon dioxide were fed axially into the reactor, while the plasma gas was introduced tangentially into the cyclone. The average reactor temperature was maintained at above 1400{degrees}C, and reduction experiments were performed under various conditions. The influence of the following parameters on the reduction of taconite was investigated experimentally; carbon monoxide to carbon dioxide inlet feed ratio, carbon monoxide inlet partial pressure, and average reactor temperature. The interactions of the graphite lining with carbon dioxide and taconite were also studied. An attempt was made to characterize the flow behavior of the molten product within the cyclone. The results suggest that the system may approach a plug flow reactor, with little back mixing. Finally, a fundamental mathematical model was developed. The model describes the flow dynamics of gases and solid particles in a cyclone reactor, energy exchange, mass transfer, and the chemical kinetics associated with cyclone smelting of taconite concentrate fines. The influence of the various parameters on the reduction and melting of taconite particles was evaluated theoretically.

Physical Description

203 p.

Notes

INIS; OSTI as DE96003556

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  • Other Information: PBD: May 1995

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  • Other: DE96003556
  • Report No.: INEL--95/0258
  • Grant Number: AC07-94ID13223
  • DOI: 10.2172/167222 | External Link
  • Office of Scientific & Technical Information Report Number: 167222
  • Archival Resource Key: ark:/67531/metadc624528

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • May 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 24, 2016, 6 p.m.

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Taylor, P. R.; Bartlett, R. W.; Abdel-latif, M. A.; Hou, X. & Kumar, P. Cyclone reduction of taconite. Final report, report, May 1995; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc624528/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.