Abstract
There are about 70 thousand tons spent lead-acid batteries annually in Taiwan and plants treat around 50 thousand tons spent lead-acid batteries annually during past 3 years. Estimated that about 2-2.5 percent of the feed would become lead-containing ash. Therefore, there are around 1000-1250 tons to be dealt with. Landfill are the most common used process now. Therefore, By conducting this recycling method, it is both commercial and environmental-friendly. The analysis of the sample shows that lead contains in the ash is around 51%, and thus, it is valuable to recover. The purpose of this recycling process is to build an optimal hydrometallurgy process to recycle lead-containing ash and makes it into lead oxide in order to reuse back to lead-acid battery industry. The process includes oxidizing roasting, leaching (hydrochloric acid), purification (citric acid) and calcination. The final product is lead oxide (PbO) with bright yellow color, purity is over 99%, and recovery rate is over 98%.
| Original language | English |
|---|---|
| Title of host publication | EARTH 2015 - Proceedings of the 13th International Symposium on East Asian Resources Recycling Technology |
| Publisher | International Symposium on East Asian Resources Recycling Technology |
| Pages | 665-672 |
| Number of pages | 8 |
| Publication status | Published - 2015 |
| Event | 13th International Symposium on East Asian Resources Recycling Technology, EARTH 2015 - Pattaya, Thailand Duration: 2015 Nov 1 → 2015 Nov 4 |
Other
| Other | 13th International Symposium on East Asian Resources Recycling Technology, EARTH 2015 |
|---|---|
| Country | Thailand |
| City | Pattaya |
| Period | 15-11-01 → 15-11-04 |
All Science Journal Classification (ASJC) codes
- Environmental Science(all)