Calcium and sodium recovery from microwave-pretreated red mud with added solid ammonium chloride
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jin-Seok | - |
dc.contributor.author | Jo, Ho Young | - |
dc.contributor.author | Choi, Nag-Choul | - |
dc.date.accessioned | 2021-08-31T22:53:26Z | - |
dc.date.available | 2021-08-31T22:53:26Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2019-12 | - |
dc.identifier.issn | 0268-2575 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/61479 | - |
dc.description.abstract | BACKGROUND Many studies have used an NH4Cl solution as a solvent during microwave-assisted metal leaching processes. However, in this study, solid NH4Cl instead of an NH4Cl solution was used as a chlorinating agent during the microwave pretreatment of red mud to induce a rapid temperature increase by minimizing heat loss by water. Red mud only and red mud-solid NH4Cl samples were pretreated by microwaves under various conditions. Leaching tests were then conducted on the microwave-pretreated red mud only and red mud-solid NH4Cl samples using deionized (DI) water as a leaching solution. RESULTS The leached Ca and Na concentrations from the microwave-pretreated red mud-solid NH4Cl samples were significantly higher than those from the microwave-pretreated red mud only samples at the given test conditions. In contrast to the red mud only samples, the leached Ca and Na concentrations from the microwave-pretreated red mud-solid NH4Cl samples increased with increasing microwave output power. The leached Ca and Na concentrations from the microwave-pretreated red mud-solid NH4Cl samples at 5000 W were significantly higher than those from the microwave-pretreated red mud-solid NH4Cl samples at 500 and 1100 W and from the non-microwave-pretreated red mud-solid NH4Cl samples. CONCLUSION Adding solid NH4Cl to the red mud during the microwave pretreatment process is effective to recover Ca and Na at a microwave output power of 5000 W. The leached solutions with elevated Ca and Na concentrations from the microwave-pretreated red mud-solid NH4Cl samples at 5000 W can be used for aqueous mineral carbonation to sequester CO2. (c) 2019 Society of Chemical Industry | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY | - |
dc.subject | MINERAL CARBONATION | - |
dc.subject | CO2 | - |
dc.subject | SEQUESTRATION | - |
dc.subject | EXTRACTION | - |
dc.title | Calcium and sodium recovery from microwave-pretreated red mud with added solid ammonium chloride | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jo, Ho Young | - |
dc.identifier.doi | 10.1002/jctb.6198 | - |
dc.identifier.scopusid | 2-s2.0-85073957184 | - |
dc.identifier.wosid | 000490878000001 | - |
dc.identifier.bibliographicCitation | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, v.94, no.12, pp.3960 - 3969 | - |
dc.relation.isPartOf | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | - |
dc.citation.title | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | - |
dc.citation.volume | 94 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 3960 | - |
dc.citation.endPage | 3969 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Biotechnology & Applied Microbiology | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Biotechnology & Applied Microbiology | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | MINERAL CARBONATION | - |
dc.subject.keywordPlus | CO2 | - |
dc.subject.keywordPlus | SEQUESTRATION | - |
dc.subject.keywordPlus | EXTRACTION | - |
dc.subject.keywordAuthor | red mud | - |
dc.subject.keywordAuthor | solid ammonium chloride | - |
dc.subject.keywordAuthor | microwave pretreatment | - |
dc.subject.keywordAuthor | calcium | - |
dc.subject.keywordAuthor | sodium | - |
dc.subject.keywordAuthor | leaching | - |
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