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

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Novel recycling process for lead-acid battery paste without SO2 generation - Reaction mechanism and industrial pilot campaign. / Li, Yun; Yang, Shenghai; Taskinen, Pekka; He, Jing; Liao, Fangwen; Zhu, Rongbo; Chen, Yongming; Tang, Chaobo; Wang, Yuejun; Jokilaakso, Ari.

In: Journal of Cleaner Production, Vol. 217, 20.04.2019, p. 162-171.

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Li, Yun ; Yang, Shenghai ; Taskinen, Pekka ; He, Jing ; Liao, Fangwen ; Zhu, Rongbo ; Chen, Yongming ; Tang, Chaobo ; Wang, Yuejun ; Jokilaakso, Ari. / Novel recycling process for lead-acid battery paste without SO2 generation - Reaction mechanism and industrial pilot campaign. In: Journal of Cleaner Production. 2019 ; Vol. 217. pp. 162-171.

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@article{e5a44d3a4054458d90e9056c9e30c30d,
title = "Novel recycling process for lead-acid battery paste without SO2 generation - Reaction mechanism and industrial pilot campaign",
abstract = "This 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.",
keywords = "Efficient lead extraction, Industrial application evaluation, Reaction mechanism, Reductive sulfur-fixing smelting, SO emission",
author = "Yun Li and Shenghai Yang and Pekka Taskinen and Jing He and Fangwen Liao and Rongbo Zhu and Yongming Chen and Chaobo Tang and Yuejun Wang and Ari Jokilaakso",
year = "2019",
month = "4",
day = "20",
doi = "10.1016/j.jclepro.2019.01.197",
language = "English",
volume = "217",
pages = "162--171",
journal = "Journal of Cleaner Production",
issn = "0959-6526",

}

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TY - JOUR

T1 - Novel recycling process for lead-acid battery paste without SO2 generation - Reaction mechanism and industrial pilot campaign

AU - Li, Yun

AU - Yang, Shenghai

AU - Taskinen, Pekka

AU - He, Jing

AU - Liao, Fangwen

AU - Zhu, Rongbo

AU - Chen, Yongming

AU - Tang, Chaobo

AU - Wang, Yuejun

AU - Jokilaakso, Ari

PY - 2019/4/20

Y1 - 2019/4/20

N2 - This 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.

AB - This 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.

KW - Efficient lead extraction

KW - Industrial application evaluation

KW - Reaction mechanism

KW - Reductive sulfur-fixing smelting

KW - SO emission

UR - http://www.scopus.com/inward/record.url?scp=85060947518&partnerID=8YFLogxK

U2 - 10.1016/j.jclepro.2019.01.197

DO - 10.1016/j.jclepro.2019.01.197

M3 - Article

VL - 217

SP - 162

EP - 171

JO - Journal of Cleaner Production

JF - Journal of Cleaner Production

SN - 0959-6526

ER -

ID: 32144103