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- Title
Electrochemical Production of Bismuth in the KCl–PbCl 2 Melt.
- Authors
Arkhipov, Pavel Alexandrovich; Zaikov, Yury Pavlovich; Khalimullina, Yuliya Rinatovna; Arkhipov, Stepan Pavlovich
- Abstract
An anode dissolution of binary metallic lead–bismuth alloys with different concentrations of components has been studied in the KCl–PbCl2 molten eutectic. The dissolution of lead is found to be a basic process for the alloys of Pb–Bi (59.3–40.7), Pb–Bi (32.5–67.5), Pb–Bi (7.0–93.0) compositions in the whole interval of studied anode current densities. A limiting diffusion current of lead dissolution was observed at 2 A/cm2 and 0.1 A/cm2 for the alloys of Pb–Bi (5.0–95.0) and Pb–Bi (3.0–97.0) compositions, respectively. The dissolution of bismuth takes place at the anode current densities exceeding the mentioned values. The number of electrons participating in the electrode reactions is detected for each mechanism. Based on the theoretical analysis, the experimental electrolysis of bismuth was performed in the laboratory-scale electrolytic cell with a porous ceramic diaphragm. The final product contained pure bismuth with a lead concentration of 3.5 wt.%.
- Subjects
LEAD-bismuth alloys; ALLOYS; ELECTROLYTIC cells; BISMUTH; ELECTRODE reactions; BINARY metallic systems; ELECTROLYSIS
- Publication
Materials (1996-1944), 2021, Vol 14, Issue 19, p5653
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma14195653