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Electrolysis of iron with oxygen gas evolution from molten sodium borate electrolytes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Ho-Gil | - |
dc.contributor.author | Choi, Seungwoo | - |
dc.contributor.author | Kim, Min-Kyung | - |
dc.contributor.author | Jang, Juyoung | - |
dc.contributor.author | Nam, Ki Tae | - |
dc.contributor.author | Jung, In-Ho | - |
dc.contributor.author | Yi, Kyung-Woo | - |
dc.date.accessioned | 2022-05-23T05:27:03Z | - |
dc.date.available | 2022-05-23T05:27:03Z | - |
dc.date.created | 2021-09-29 | - |
dc.date.created | 2021-09-29 | - |
dc.date.issued | 2021-10 | - |
dc.identifier.citation | Ironmaking and Steelmaking, Vol.48 No.9, pp.1030-1037 | - |
dc.identifier.issn | 0301-9233 | - |
dc.identifier.uri | https://hdl.handle.net/10371/180085 | - |
dc.description.abstract | Molten oxide electrolysis can be used to reduce the carbon dioxide emissions from ironmaking. In this paper, we electrochemically decompose iron oxide (Fe2O3) into iron (Fe) and oxygen (O-2) using boron trioxide and sodium oxide (B2O3-Na2O) as the molten oxide electrolyte at 1000 degrees C that is less than the temperature of other molten oxide electrolysis. The formation of Fe at the cathode and O-2 at the anode is identified by analysing products from both electrodes. The results suggest that the cathodic current efficiency of electrolysis at 2 V is about 54.7%, energy consumption is about 5.27 kW h kg(-1) of Fe at 2 V electrolysis, and purity of the reduced Fe was more than 97 mol.%. With respect to the process temperature and product yield, B2O3-Na2O molten oxide has potential as a supporting electrolyte to reduce Fe2O3 to Fe without consuming any carbon. | - |
dc.language | 영어 | - |
dc.publisher | Maney Publishing | - |
dc.title | Electrolysis of iron with oxygen gas evolution from molten sodium borate electrolytes | - |
dc.type | Article | - |
dc.identifier.doi | 10.1080/03019233.2020.1861837 | - |
dc.citation.journaltitle | Ironmaking and Steelmaking | - |
dc.identifier.wosid | 000606735900001 | - |
dc.identifier.scopusid | 2-s2.0-85099405921 | - |
dc.citation.endpage | 1037 | - |
dc.citation.number | 9 | - |
dc.citation.startpage | 1030 | - |
dc.citation.volume | 48 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Nam, Ki Tae | - |
dc.contributor.affiliatedAuthor | Jung, In-Ho | - |
dc.contributor.affiliatedAuthor | Yi, Kyung-Woo | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | ELECTRONIC CONDUCTIVITY | - |
dc.subject.keywordPlus | CAO-SIO2-FEOX SLAGS | - |
dc.subject.keywordPlus | POTENTIALS | - |
dc.subject.keywordPlus | ANODE | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordAuthor | Molten oxide electrolysis | - |
dc.subject.keywordAuthor | carbon-free ironmaking process | - |
dc.subject.keywordAuthor | metal extraction | - |
dc.subject.keywordAuthor | oxygen evolution | - |
dc.subject.keywordAuthor | sodium borate | - |
dc.subject.keywordAuthor | high current efficiency | - |
dc.subject.keywordAuthor | low energy consumption | - |
dc.subject.keywordAuthor | thermogravimetric analysis | - |
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