Abstract
In this study, we aimed to establish the optimum reductive leaching process with diluted acetic acid for the lead dioxide recovery from lead-acid battery paste. The effects of various reducing agents, acid concentrations, pulp densities, reaction temperatures, and leaching times on the dissolution of lead dioxide were investigated. Lead dioxide dissolution by reductive acidic media is a chemically controlled process with activation energy of 44.51 ± 1.23 kJ/mol. After leaching, lead acetate ions were precipitated with chromic acid as the lead chromate (PbCrO4) compound. Lead acetate salt was also precipitated from the leaching solution using a crystallization method. These lead compounds can potentially be used in many industries (e.g., pigment application to detect the poisonous gas hydrogen sulfide). Our findings indicate that this process could be effective in leaching lead dioxide.
| Original language | English |
|---|---|
| Pages (from-to) | 2643-2650 |
| Number of pages | 8 |
| Journal | Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science |
| Volume | 47 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Aug 2016 |
Bibliographical note
Publisher Copyright:© 2016, The Minerals, Metals & Materials Society and ASM International.
Funding
The authors would like to thank the editor and two anonymous reviewers for helpful comments on an earlier draft of this manuscript. The authors would also like to thank TUBITAK-UBYT for financial support. Thanks are especially due to Professor Dr. Onuralp Yucel and Associate Professor Dr. Serdar Aktas for making it possible to conduct the physical and chemical analyses at Istanbul Technical University and Marmara University.
| Funders | Funder number |
|---|---|
| TUBITAK-UBYT |
