| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Recovery of Copper Metal from Discarded Printed Circuit Boards (PCBs) by Hydro and Electro Metallurgical Processes |
| Author(s) |
Om Shankar Dinkar, Rukshana Parween, Rekha Panda, Pankaj Kumar Choubey, Balram Ambade, Manis Kumar Jha |
| On-Site Speaker (Planned) |
Rukshana Parween |
| Abstract Scope |
Limited metal resources and significant environmental hazards urged researchers for finding sustainable technology for recycling of waste printed circuit boards (PCBs) to recover metals. Therefore, present paper is focused on the recovery of copper (Cu) from waste PCBs using mechanical pre-treatment followed by hydrometallurgical processing. Initially, depopulated PCBs were pre-treated to get enrich copper in metallic concentrate. Further, experiments were carried out varying different process parameters i.e. acid concentration, oxidant concentration, time, etc., to obtain optimized condition for efficient Cu leaching from metallic concentrate. It was found that 99.9% Cu was leached using 15% H2SO4 at 75 oC in presence of 15% H2O2 within 120 min maintaining 100 g/L pulp density. The obtained leach liquor was used for electro-winning to recover pure copper metal. Result showed that 99.99% pure copper got deposited at cathode between 200-210 A/m2 current density with a current efficiency of ≥85%. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Hydrometallurgy, Extraction and Processing, Other |