Novel recycling process for lead-acid battery paste without SO2 generation - Reaction mechanism and industrial pilot campaign

dc.contributorAalto Universityen
dc.contributor.authorLi, Yunen_US
dc.contributor.authorYang, Shenghaien_US
dc.contributor.authorTaskinen, Pekkaen_US
dc.contributor.authorHe, Jingen_US
dc.contributor.authorLiao, Fangwenen_US
dc.contributor.authorZhu, Rongboen_US
dc.contributor.authorChen, Yongmingen_US
dc.contributor.authorTang, Chaoboen_US
dc.contributor.authorWang, Yuejunen_US
dc.contributor.authorJokilaakso, Arien_US
dc.contributor.departmentDepartment of Chemical and Metallurgical Engineeringen
dc.contributor.groupauthorMetallurgy (MTG)en
dc.contributor.organizationCentral South Universityen_US
dc.contributor.organizationHetao Collegeen_US
dc.description.abstractThis study proposes an innovative and environment-friendly method for recycling spent lead-acid batteries without SO2 generation. Iron-containing waste was employed as a sulfur-fixing agent to retain sulfur as ferrous matte, which eliminated the generation and emissions of gaseous SO2. This work investigated the thermodynamic and experimental feasibility and conversion mechanism of the method, and evaluated its industrial applicability. A bench-scale test showed direct recoveries of 93.5% and 97.7% in crude lead and ferrous matte for lead and sulfur, respectively. The phase transformation mechanism study indicated that metallic lead from the lead paste was extracted mainly through the sequence of PbSO4 →C/CO PbS →Fe3O4 PbO →C/CO Pb. Sulfur in PbSO4 was thus first transferred to PbS and finally fixed as FeS. An industrial-scale pilot campaign was also conducted to confirm the feasibility and reliability of the new process.en
dc.description.versionPeer revieweden
dc.identifier.citationLi, Y, Yang, S, Taskinen, P, He, J, Liao, F, Zhu, R, Chen, Y, Tang, C, Wang, Y & Jokilaakso, A 2019, ' Novel recycling process for lead-acid battery paste without SO 2 generation - Reaction mechanism and industrial pilot campaign ', Journal of Cleaner Production, vol. 217, pp. 162-171 .
dc.identifier.otherPURE UUID: e5a44d3a-4054-458d-90e9-056c9e30c30den_US
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dc.publisherELSEVIER SCI LTD
dc.relation.ispartofseriesJournal of Cleaner Productionen
dc.relation.ispartofseriesVolume 217en
dc.subject.keywordEfficient lead extractionen_US
dc.subject.keywordIndustrial application evaluationen_US
dc.subject.keywordReaction mechanismen_US
dc.subject.keywordReductive sulfur-fixing smeltingen_US
dc.subject.keywordSO emissionen_US
dc.titleNovel recycling process for lead-acid battery paste without SO2 generation - Reaction mechanism and industrial pilot campaignen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi