High-efficiency recycling of Mo and Ni from spent HDS catalysts: Enhanced oxidation with O2-rich roasting and selective separation with organic acid leaching- complexation extraction

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dc.authorid0000-0002-3132-4468en_US
dc.authorscopusid23484420600en_US
dc.authorwosidJ-4019-2019en_US
dc.contributor.authorYu, Haoran
dc.contributor.authorLiu, Changmin
dc.contributor.authorLiu, Shuo
dc.contributor.authorGu, Yu
dc.contributor.authorWang, Shuya
dc.contributor.authorArslanoğlu, Hasan
dc.date.accessioned2024-02-20T07:22:51Z
dc.date.available2024-02-20T07:22:51Z
dc.date.issued2024en_US
dc.departmentFakülteler, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü
dc.description.abstractSpent petroleum refining catalyst is regarded as the important secondary resource for valuable metals. However, common recycling strategies, including soda roasting, acid and alkaline solutions leaching and chemically precipitation, produced large quantities of high salinity wastewater. This study proposed an efficient method to recovery of Mo and Ni from the spent hydrodesulfurization (HDS) catalyst via O2-rich roasting and organic acid leaching with the advantage of less salinity wastewater production. The transformation of Mo(IV) into soluble Mo(VI) was enhanced by O2-rich atmosphere roasting, and 98.64% of Mo(IV) was oxidized at 650 ℃ for 2 h in atmosphere containing 30% of O2. The oxidation process of Mo(IV) was agreed with the shrinkage pore model, and regulated by surface reaction and internal diffusion. 97.97% of Mo(VI) was leached from roasted product by oxalic acid, separated with complexation extraction agent of Ala-TBP and recovered as (NH4)8Mo10O34 and (NH4)2Mo3O10 by evaporative crystallization. Ni was leached out from spent catalyst with 1 mol/L acetic acid, and precipitated as NiC2O4 with oxalic acid. 95.92% of Mo and 96.77% of Ni were recovered from spent HDS catalyst with this recycling route. This study provided a high-efficient and eco-friendly method to recovery of valuable metals from spent catalyst.en_US
dc.identifier.citationYu, H., Liu, C., Liu, S., Gu, Y., Wang, S., Yaraş, A., … Mao, L. (2024). High-efficiency recycling of Mo and Ni from spent HDS catalysts: Enhanced oxidation with O2-rich roasting and selective separation with organic acid leaching- complexation extraction. Journal of Hazardous Materials, 464, 132982. https://doi.org/10.1016/j.jhazmat.2023.132982en_US
dc.identifier.doi10.1016/j.jhazmat.2023.132982
dc.identifier.issn0304-3894
dc.identifier.issn1873-3336
dc.identifier.pmid37984138
dc.identifier.scopus2-s2.0-85177219477
dc.identifier.urihttps://doi.org/10.1016/j.jhazmat.2023.132982
dc.identifier.urihttps://hdl.handle.net/20.500.12428/5655
dc.identifier.volume464en_US
dc.identifier.wosWOS:001119538900001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorArslanoğlu, Hasan
dc.language.isoen
dc.publisherElsevier B.V.en_US
dc.relation.ispartofJournal of Hazardous Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAcetic acid leaching of Nien_US
dc.subjectComplexation extractionen_US
dc.subjectO2-rich roastingen_US
dc.subjectOxalic acid leaching of Moen_US
dc.subjectSpent HDS catalysten_US
dc.titleHigh-efficiency recycling of Mo and Ni from spent HDS catalysts: Enhanced oxidation with O2-rich roasting and selective separation with organic acid leaching- complexation extraction
dc.typeArticle

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