Copper extraction from oxide ore of almalyk mine by h2 so4 in simulated heap leaching: Effect of particle size and acid concentration
DC Field | Value | Language |
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dc.contributor.author | Kang, Chan-Ung | - |
dc.contributor.author | Ji, Seung-Eun | - |
dc.contributor.author | Pabst, Thomas | - |
dc.contributor.author | Choi, Kung-Won | - |
dc.contributor.author | Khan, Moonis Ali | - |
dc.contributor.author | Kumar, Rahul | - |
dc.contributor.author | Krishnaiah, Prakash | - |
dc.contributor.author | Han, Yosep | - |
dc.contributor.author | Jeon, Byong-Hun | - |
dc.contributor.author | Kim, Do-Hyeon | - |
dc.date.accessioned | 2022-07-06T13:39:54Z | - |
dc.date.available | 2022-07-06T13:39:54Z | - |
dc.date.created | 2021-11-22 | - |
dc.date.issued | 2021-09 | - |
dc.identifier.issn | 2075-163X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/141034 | - |
dc.description.abstract | In this investigation, a laboratory-scale study to extract copper (Cu) from its oxide ore (0.425–11.2 mm particle size) was conducted using varied sulfuric acid (H2 SO4 ) concentrations (0.05–0.5 M) as a lixiviant. Through a physicochemical and mineralogical analysis of real field ore samples from the Almalyk mine heap site (Tashkent, Uzbekistan), malachite was identified as a Cu-bearing mineral. Extraction rates were analyzed according to the ore particle size and acid concentration. The Cu extraction with the smallest particle size (in 24 h) varied between 76.7% and 94.26% at varied H2 SO4 concentrations (0.05–0.5 M). Almost half (50%) of Cu was extracted from the ore within 4 and 72 h of contact time for 0.425–2 mm and 5.6–11.2 mm particle sizes, respectively, using 0.15 M H2 SO4 . Weeklong leaching experiments with 0.5 M H2 SO4 revealed a higher copper extraction rate (≥73%) from coarse ore particles (5.6–11.2 mm). Along with the copper extraction, iron (29.6 wt%), aluminum (70.2 wt%), magnesium (85.4 wt%), and calcium (44.4 wt%) were also leached out considerably through the dissolution of silicate and carbonate gangue minerals. In this study, an 80.0–94.26% copper extraction rate with reduced acid consumption (20%) proved to be a cost-effective approach. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.title | Copper extraction from oxide ore of almalyk mine by h2 so4 in simulated heap leaching: Effect of particle size and acid concentration | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jeon, Byong-Hun | - |
dc.identifier.doi | 10.3390/min11091020 | - |
dc.identifier.scopusid | 2-s2.0-85115067487 | - |
dc.identifier.wosid | 000701089500001 | - |
dc.identifier.bibliographicCitation | MINERALS, v.11, no.9, pp.1 - 14 | - |
dc.relation.isPartOf | MINERALS | - |
dc.citation.title | MINERALS | - |
dc.citation.volume | 11 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 14 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Geochemistry & GeophysicsMineralogyMining & Mineral Processing | - |
dc.relation.journalWebOfScienceCategory | Geochemistry & GeophysicsMineralogyMining & Mineral Processing | - |
dc.subject.keywordPlus | MALACHITE ORE | - |
dc.subject.keywordPlus | DISSOLUTION | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | CHRYSOCOLLA | - |
dc.subject.keywordPlus | ATACAMITE | - |
dc.subject.keywordPlus | SULFIDES | - |
dc.subject.keywordPlus | COMPLEX | - |
dc.subject.keywordAuthor | heap leaching | - |
dc.subject.keywordAuthor | copper extraction | - |
dc.subject.keywordAuthor | copper oxide | - |
dc.subject.keywordAuthor | malachite | - |
dc.subject.keywordAuthor | acid consumption | - |
dc.identifier.url | https://www.mdpi.com/2075-163X/11/9/1020 | - |
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