Abstract
Hydrochloric acid (HCl) leaching solutions were investigated with the aim of recovering the lithium present in industrial battery waste. The lithium-rich solution after HCl leaching of battery waste contains major impurities such as iron, nickel, cobalt, manganese, aluminum, and copper. This composition was used as a model system to prepare a synthetic solution for lithium recovery by precipitation. The precipitation results indicated that the feeding rate of carbonate and stirring rate had an effect on particle size distribution. Uniform particles were obtained with a semi-batch process. A faster carbonate feeding rate can result in a smaller particle size due to the high supersaturation degree and chemical reaction rates.
| Original language | English |
|---|---|
| Pages (from-to) | 1205-1210 |
| Number of pages | 6 |
| Journal | Chemical Engineering and Technology |
| Volume | 41 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2018 |
| MoE publication type | A1 Journal article-refereed |
Funding
The authors are grateful to the METYK project (grant number 3254/31/2015), funded by the Finnish Funding Agency for Innovation, Business Finland. The research was also supported by the Strategic Research Council at the Academy of Finland, in the project called CloseLoop (grant numbers 303452 and 303454), RawMatTERS Finland Infrastructure (RAMI) funded by the Academy of Finland and CMEco (grant number 7405/ 31/2016), funded by Business Finland. The authors would like to thank M.Sc. Miamari Aaltonen, and M.Sc. Emmi Eronen for their work concerning the product liquid solution preparation. Our thanks go to Dr. Joseph Hamuyuni for the SEM analysis.
Keywords
- Lithium battery waste
- Lithium carbonate
- Lithium recovery
- Precipitation
