Recovery of Pd as PdO from Pd/SiO2 catalyst by leaching using hydrochloric acid
DC Field | Value | Language |
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dc.contributor.author | Kim, Ye Eun | - |
dc.contributor.author | Byun, Mi Yeon | - |
dc.contributor.author | Lee, Kwan-Young | - |
dc.contributor.author | Lee, Man Sig | - |
dc.date.accessioned | 2021-11-17T18:40:36Z | - |
dc.date.available | 2021-11-17T18:40:36Z | - |
dc.date.created | 2021-08-30 | - |
dc.date.issued | 2021-07 | - |
dc.identifier.issn | 1438-4957 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/127784 | - |
dc.description.abstract | The recovery of Pd from spent catalysts has been gaining attention due to its high economic value and limited availability in nature. To recover and reuse Pd, leaching in HCl-H2O2 media and recovery of Pd from the Pd/SiO2 catalyst were investigated. The Pd/SiO2 catalyst was leached using 3 M HCl solution with different concentrations of H2O2; then 0.5 M NaOH was added to precipitate the Pd ions. The leaching parameters were as follows: temperature, time, H2O2 concentration, and pulp density. A 100% leaching efficiency of Pd was obtained through the addition of 5 vol% H2O2 in 3 M HCl at pulp density of 50 g/L at 80 degrees C for 120 min. Complete recovery of Pd was obtained at a pH = 9 due to the hydrolysis of Pd. These results indicate that the leaching time and presence of H2O2 played a key role in the stable formation of aqueous Pd-Cl complexes and in improving the mass transfer efficiency. The palladium powder obtained was palladium oxide, and the purity of palladium oxide was 86.6%. Consequently, it is expected that the obtained PdO powder can be utilized in glass, ceramic, and catalyst applications. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | SPRINGER | - |
dc.subject | PLATINUM-GROUP METALS | - |
dc.subject | SPENT CATALYSTS | - |
dc.subject | PALLADIUM | - |
dc.subject | HYDROGENATION | - |
dc.subject | DISSOLUTION | - |
dc.subject | SEPARATION | - |
dc.subject | PRESSURE | - |
dc.title | Recovery of Pd as PdO from Pd/SiO2 catalyst by leaching using hydrochloric acid | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kwan-Young | - |
dc.identifier.doi | 10.1007/s10163-021-01249-w | - |
dc.identifier.scopusid | 2-s2.0-85106345166 | - |
dc.identifier.wosid | 000652098900002 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT, v.23, no.4, pp.1657 - 1664 | - |
dc.relation.isPartOf | JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT | - |
dc.citation.title | JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT | - |
dc.citation.volume | 23 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 1657 | - |
dc.citation.endPage | 1664 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | PLATINUM-GROUP METALS | - |
dc.subject.keywordPlus | SPENT CATALYSTS | - |
dc.subject.keywordPlus | PALLADIUM | - |
dc.subject.keywordPlus | HYDROGENATION | - |
dc.subject.keywordPlus | DISSOLUTION | - |
dc.subject.keywordPlus | SEPARATION | - |
dc.subject.keywordPlus | PRESSURE | - |
dc.subject.keywordAuthor | Hydrometallurgy | - |
dc.subject.keywordAuthor | Leaching | - |
dc.subject.keywordAuthor | Palladium | - |
dc.subject.keywordAuthor | Pd | - |
dc.subject.keywordAuthor | SiO2 catalyst | - |
dc.subject.keywordAuthor | Recovery | - |
dc.subject.keywordAuthor | Recycle | - |
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