|
| Study on Continuous Electrowinning of Lead from Lead Methanesulfonate |
|
Received:August 19, 2024
Revised:September 09, 2024
Accepted:September 12, 2024
Published Online:February 18, 2025
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.20237/j.issn.1007-7545.2025.01.002 |
| KeyWord:Methanesulfonic acid; Continuous electrowinning equipment; Refined lead |
| Author | Institution |
| ZHANG Zhuang |
东北大学，冶金学院 |
| XIE Feng |
东北大学 冶金学院 |
| WANG Wei |
东北大学 冶金学院 |
| ZU Zhuangzhi |
东北大学 冶金学院 |
|
| Hits: 1149 |
| Download times: 2072 |
| Abstract: |
| In this study, lead methanesulfonate was utilized as the electrolyte to develop an innovative electrowinning lead process based on continuous electrowinning equipment. Through a systematic investigation of various parameters — including current density, scraping time, electrode spacing, electrolyte circulation speed, concentration of methanesulfonic acid, redissolution, concentration of Pb2+, and temperature — on the current efficiency, average cell voltage, and energy consumption of continuous electrowinning, the optimal conditions for the electrowinning of refined lead within a lead methanesulfonate solution were identified. Moreover, the feasibility and efficiency of the novel continuous electrowinning equipment have been validated. The results reveal that under conditions of a current density of 200 A?m-2, a scraping time of 2 h, an electrode spacing of 40 mm, electrolyte circulation speed of 300 mL?min-1, a methanesulfonic acid concentration of 1 mol?L-1, a Pb2+ concentration of 1 mol?L-1, and a temperature of 40°C, a refined lead of 99.996% purity, featuring a compact structure and ease of scraping, was obtained. The process exhibits a current efficiency exceeding 97% and an energy consumption of 659.74 kWh?t-1. |
| Close |
|
|
|