Malachite flotation using carbon black nanoparticles as collectors: Negative impact of suspended nanoparticle aggregates
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hyunjung | - |
dc.contributor.author | You, Junhyuk | - |
dc.contributor.author | Gomez-Flores, Allan | - |
dc.contributor.author | Solongo, Stephen Kayombo | - |
dc.contributor.author | Hwang, Gukhwa | - |
dc.contributor.author | Zhao, Hongbo | - |
dc.contributor.author | Lee, Byoung-cheun | - |
dc.contributor.author | Choi, Junhyun | - |
dc.date.accessioned | 2023-09-04T07:25:09Z | - |
dc.date.available | 2023-09-04T07:25:09Z | - |
dc.date.created | 2023-07-21 | - |
dc.date.issued | 2019-06 | - |
dc.identifier.issn | 0892-6875 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/189774 | - |
dc.description.abstract | In this study, the flotation behavior of malachite was investigated using carboxyl-ftuictionalized carbon black nanoparticles (CB-NPs) as collectors in a hydrodynamically simplified Hallimond tube. We found that malachite floatability increased with increasing CB-NP concentration in the low range (0.5-2 kg/ton). To understand the mechanism of this higher floatability for low CB-NP concentrations, we examined the amounts of deposited CB-NPs on the malachite surface and hydrophobicity of the surface with deposited CB-NPs according to changes in the initial CB-NP concentration. The increase in malachite floatability was likely associated with increases in the amounts of deposited CB-NPs on the malachite surface, which enhanced malachite floatability by altering the hydrophobicity of its surface. Meanwhile, malachite floatability sharply decreased at CB-NP concentrations exceeding 2 kg/ton. To understand this unusual flotation behavior for high CB-NP concentrations, we also examined the amounts of CB-NPs deposited on the malachite surface and contact angles. However, the decreased malachite floatability could not be fully explained by these experiments, implying that at least one additional mechanism is involved. Therefore, additional flotation experiments including filtration processes and different flotation times were conducted, revealing that the unusual flotation behavior was likely due to the presence of suspended CB-NP aggregates, which reduced the kinetic rates of attachment between malachite and bubbles. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Malachite flotation using carbon black nanoparticles as collectors: Negative impact of suspended nanoparticle aggregates | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hyunjung | - |
dc.identifier.doi | 10.1016/j.mineng.2019.03.025 | - |
dc.identifier.scopusid | 2-s2.0-85063281515 | - |
dc.identifier.wosid | 000469154100003 | - |
dc.identifier.bibliographicCitation | MINERALS ENGINEERING, v.137, pp.19 - 26 | - |
dc.relation.isPartOf | MINERALS ENGINEERING | - |
dc.citation.title | MINERALS ENGINEERING | - |
dc.citation.volume | 137 | - |
dc.citation.startPage | 19 | - |
dc.citation.endPage | 26 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Mineralogy | - |
dc.relation.journalResearchArea | Mining & Mineral Processing | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.relation.journalWebOfScienceCategory | Mineralogy | - |
dc.relation.journalWebOfScienceCategory | Mining & Mineral Processing | - |
dc.subject.keywordPlus | SURFACE CHARACTERISTICS | - |
dc.subject.keywordPlus | SODIUM OLEATE | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | BIOFLOTATION | - |
dc.subject.keywordPlus | COMBINATION | - |
dc.subject.keywordPlus | ATTACHMENT | - |
dc.subject.keywordPlus | TOXICITY | - |
dc.subject.keywordPlus | REAGENTS | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | RECOVERY | - |
dc.subject.keywordAuthor | Carbon black nanoparticles | - |
dc.subject.keywordAuthor | CollectorMalachite | - |
dc.subject.keywordAuthor | Floatability | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0892687519301487?via%3Dihub | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.