NaOH-assisted direct reduction of Ring of Fire chromite ores, and the associated implications for processing
Abstract
As part of a broader programme to fully characterize the chromite ores discovered in the 'Ring of Fire' region of northern Ontario, NRCan and private research facilities in Canada have performed extensive test work over the past six years. The studies focused on developing alternative approaches for producing ferrochrome at lower temperatures and with fewer greenhouse gas emissions. The use of various fluxes or catalysts for accelerated direct reduction had yielded promising results, particularly with caustic soda (NaOH). Here, the initial work had been protected by a patent known as the 'KWG process'. The most recent work by NRCan has confirmed that the addition of NaOH to chromite ores in carefully controlled amounts leads to high degrees of metallization at much lower temperatures than would be achieved by conventional smelting technologies, at greatly accelerated reactions rates.
- Authors:
-
- Canmet Mining (Canada)
- Metallurgical Process Consultants Ltd (Canada)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Univ. of Washington, Seattle, WA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1491196
- Grant/Contract Number:
- W-31-109-Eng-38; FG03-97ER45628
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of the Southern African Institute of Mining and Metallurgy
- Additional Journal Information:
- Journal Volume: 118; Journal Issue: 6; Journal ID: ISSN 2225-6253
- Publisher:
- SciELO
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 58 GEOSCIENCES; chromite; ferrochrome; prereduction; direct reduction; catalysts; Ring of Fire
Citation Formats
Sokhanvaran, S., Paktunc, D., and Barnes, A. NaOH-assisted direct reduction of Ring of Fire chromite ores, and the associated implications for processing. United States: N. p., 2018.
Web. doi:10.17159/2411-9717/2018/v118n6a4.
Sokhanvaran, S., Paktunc, D., & Barnes, A. NaOH-assisted direct reduction of Ring of Fire chromite ores, and the associated implications for processing. United States. https://doi.org/10.17159/2411-9717/2018/v118n6a4
Sokhanvaran, S., Paktunc, D., and Barnes, A. Fri .
"NaOH-assisted direct reduction of Ring of Fire chromite ores, and the associated implications for processing". United States. https://doi.org/10.17159/2411-9717/2018/v118n6a4. https://www.osti.gov/servlets/purl/1491196.
@article{osti_1491196,
title = {NaOH-assisted direct reduction of Ring of Fire chromite ores, and the associated implications for processing},
author = {Sokhanvaran, S. and Paktunc, D. and Barnes, A.},
abstractNote = {As part of a broader programme to fully characterize the chromite ores discovered in the 'Ring of Fire' region of northern Ontario, NRCan and private research facilities in Canada have performed extensive test work over the past six years. The studies focused on developing alternative approaches for producing ferrochrome at lower temperatures and with fewer greenhouse gas emissions. The use of various fluxes or catalysts for accelerated direct reduction had yielded promising results, particularly with caustic soda (NaOH). Here, the initial work had been protected by a patent known as the 'KWG process'. The most recent work by NRCan has confirmed that the addition of NaOH to chromite ores in carefully controlled amounts leads to high degrees of metallization at much lower temperatures than would be achieved by conventional smelting technologies, at greatly accelerated reactions rates.},
doi = {10.17159/2411-9717/2018/v118n6a4},
journal = {Journal of the Southern African Institute of Mining and Metallurgy},
number = 6,
volume = 118,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2018},
month = {Fri Jun 01 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
Works referencing / citing this record:
Influences of alkali fluxes on direct reduction of chromite for ferrochrome production
journal, January 2018
- Paktunc, D.; Thibault, Y.; Sokhanvaran, S.
- Journal of the Southern African Institute of Mining and Metallurgy, Vol. 118, Issue 12