Novel recycling process for lead-acid battery paste without SO2 generation - Reaction mechanism and industrial pilot campaign
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- 影响因子：7.246
- DOI码：10.1016/j.jclepro.2019.01.197
- 发表刊物：Journal of Cleaner Production
- 关键字：Reductive sulfur-fixing smelting
Efficient lead extraction
Reaction mechanism
SO2emission
Industrial application evaluation
- 摘要：This study proposes an innovative and environment-friendly method for recycling spent lead-acid batteries
without SO2generation. 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=COPbS! Fe3O4PbO!C=CO
Pb. Sulfur in PbSO4was thusfirst transferred to PbS andfinallyfixed as FeS. An industrial-scale pilot
campaign was also conducted to confirm the feasibility and reliability of the new process.
- 论文类型：期刊论文
- 学科门类：工学
- 一级学科：冶金工程
- 文献类型：J
- 卷号：217
- 页面范围：1620-171
- ISSN号：0959-6526
- 是否译文：否
- 发表时间：2019-04-20
- 收录刊物：SCI
附件：
1-s2.0-S0959652619302446-main03.pdf
