A Novel Method for Extracting Crude Pb from Lead-Acid Battery Grid Alloy By Vacuum Distillation

16 Pages Posted: 22 Sep 2023

See all articles by Jinghui Sun

Jinghui Sun

affiliation not provided to SSRN

Weijun Li

affiliation not provided to SSRN

Jiafei Yi

Kunming University of Science and Technology

Chunhuan Li

affiliation not provided to SSRN

Bin Gu

affiliation not provided to SSRN

Tucai Yang

affiliation not provided to SSRN

Xuming Zhang

affiliation not provided to SSRN

Alin Cao

affiliation not provided to SSRN

Jingyao Xu

affiliation not provided to SSRN

Abstract

The waste lead-acid battery grid, a predominantly lead-based alloy, has seen a significant surge in production, positioning it as a primary source of Pb. Conventionally, pyrometallurgical techniques employed to treat this waste are fraught with the complex process of segregating Sb and As to extract Pb. This not only escalates energy consumption but also exacerbates environmental challenges with the emission of hazardous wastes. As an alternative, this research introduces vacuum distillation (VD) as a novel and efficient technique for the elimination of Sb and As from grid alloy. Through a blend of theoretical and experimental examinations, the feasibility of utilizing VD for direct crude Pb synthesis was corroborated. Empirical results demonstrated that a remarkable 98.97% Pb from the grid alloy underwent recovery, producing crude Pb with a purity level of 98.56% at a distillation temperature of 923 K sustained for 60 min. This extracted crude Pb is apt for subsequent refinement through electrolytic processes. Sb and As elements transitioned to volatile phases, avoiding the generation of arsenic-containing dust. A salient feature of this VD technique is its zero emissions, both in gaseous and aqueous forms, ensuring an eco-friendly and sustainable extraction of crude Pb.

Keywords: Waste lead-acid battery, Grid alloy, Vacuum distillation, Crude Pb, Sustainable purification

Suggested Citation

Sun, Jinghui and Li, Weijun and Yi, Jiafei and Li, Chunhuan and Gu, Bin and Yang, Tucai and Zhang, Xuming and Cao, Alin and Xu, Jingyao, A Novel Method for Extracting Crude Pb from Lead-Acid Battery Grid Alloy By Vacuum Distillation. Available at SSRN: https://ssrn.com/abstract=4580247 or http://dx.doi.org/10.2139/ssrn.4580247

Jinghui Sun

affiliation not provided to SSRN ( email )

No Address Available

Weijun Li

affiliation not provided to SSRN ( email )

No Address Available

Jiafei Yi (Contact Author)

Kunming University of Science and Technology ( email )

Kunming Yunnan China
Kunming
China

Chunhuan Li

affiliation not provided to SSRN ( email )

No Address Available

Bin Gu

affiliation not provided to SSRN ( email )

No Address Available

Tucai Yang

affiliation not provided to SSRN ( email )

No Address Available

Xuming Zhang

affiliation not provided to SSRN ( email )

No Address Available

Alin Cao

affiliation not provided to SSRN ( email )

No Address Available

Jingyao Xu

affiliation not provided to SSRN ( email )

No Address Available

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