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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


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Extraction of Tungsten, Yttrium and Uranium from Tantalum – Niobium Ore from Muchinga Province in Zambia
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New Insights on Titanium(IV) Speciation to Improve the Purification of Concentrated Phosphoric Acid
Production of High-purity Mg Metal from Various MgO Resources through a Novel Electrolytic Process Using a Cu Cathode and Vacuum Distillation
Production of Micro-sized Metallic Tungsten Particles from Natural Wolframite and Scheelite via Sulfide Chemistry
Purification of an Indigenous Barite Mineral for Sustainability of Operation in the Nigerian Oil and Gas Industries
Pyrolysis of Waste Printed Circuit Boards: Optimization Using Response Surface Methodology and Characterization of Solid Product
Rare Earth Elements Extraction from an Ionic Clay from South America
Recovery and Separation of Vanadium and Tungsten from Spent SCR Catalyst by Hydrometallurgical/ Hybrid Routes
Recovery of Copper Metal from Discarded Printed Circuit Boards (PCBs) by Hydro and Electro Metallurgical Processes
Recycling of Copper and Gold from Waste Printed Circuit Boards by Leaching Followed by Solvent Extraction
Recycling of Rare Earth Elements (REEs) from Scrap Nd-Fe-B Magnets
Removal of Selenium from Chloride Media using Bioadsorbent
Separation of Rare Earth Elements from Monazite via Sulfidation
Studies on the Hydrometallurgical Recovery of Metals from Used and End of Life PCBs
Tantalum Recovery Technique for Recycling of Tantalum Coated Composite Materials
The Behaviour of Minor Metals in BOF Slag Under Different Additives

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