Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김현중 | - |
dc.date.accessioned | 2022-10-19T06:17:01Z | - |
dc.date.available | 2022-10-19T06:17:01Z | - |
dc.date.issued | 2021-01 | - |
dc.identifier.citation | JOM, v. 73, no. 1, page. 19-26 | en_US |
dc.identifier.issn | 1047-4838; 1543-1851 | en_US |
dc.identifier.uri | https://link.springer.com/article/10.1007/s11837-020-04471-3 | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/175549 | - |
dc.description.abstract | The hydrometallurgical recycling of cerium from a secondary residue of exhausted auto-catalyst was investigated. Cerium dissolution was significantly improved up to 96% when HF was additionally introduced into a 2.0 mol/L H2SO4 solution. The activation energy (E-a, 31.8 kJ/mol) indicated the diffusion-controlled mechanism prevailed in cerium leaching. Subsequently, the leach liquor containing 4.2 g/L cerium was equilibrated with Cyanex 923 for solvating the post-extraction species Ce(SO4)(2.)22(P = O)center dot HSO4-](org) into the organic phase. Thermodynamic properties revealed that the affinity of Cyanex 923 toward cerium was spontaneous (Delta G degrees(298K), -6.58 kJ/mol) and exhibited outer-sphere coordination for the exothermic process (Delta H degrees, -21.42 kJ/mol). Furthermore, cerium was quantitatively stripped (> 98%) from the loaded organic using the strippant mixture of 1.0 mol/L H2SO4 + 0.5 mol/L H2O2. Eventually, high-purity Ce-2(C2O4)(3).10H(2)O was precipitated by adding oxalic acid at an optimized dosage of Ce3+:H2C2O4 = 1:5. | en_US |
dc.description.sponsorship | This work was supported by the Brain Pool Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (Grant No. 2019H1D3A2A02101993) and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (Project No. 2020R1I1A1A01074249). The authors thank Dr. Dipti Tanna for her support during the revision of the manuscript. | en_US |
dc.language.iso | en | en_US |
dc.publisher | SPRINGER | en_US |
dc.title | Hydrometallurgical Recycling of Rare Earth Metal–Cerium from Bio-processed Residual Waste of Exhausted Automobile Catalysts | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1007/s11837-020-04471-3 | en_US |
dc.relation.journal | JOM | - |
dc.contributor.googleauthor | Ilyas, Sadia | - |
dc.contributor.googleauthor | Kim, Hyunjung | - |
dc.contributor.googleauthor | Srivastava, Rajiv Ranjan | - |
dc.relation.code | 2021005605 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING | - |
dc.identifier.pid | kshjkim | - |
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