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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Advances in Environmental Technologies: Recycling and Sustainability Joint Session
Presentation Title A Low Temperature Procedure for the Delamination of Brominated Epoxy Resin of Waste Printed Circuit Boards
Author(s) Himanshu Ranjan Verma, Kamalesh Kumar Singh, Tilak Raj Mankhand
On-Site Speaker (Planned) Himanshu Ranjan Verma
Abstract Scope A new technique of waste printed circuit boards (WPCBs) recycling by dissolution of brominated epoxy resin (BER) in dimethyl formamide (DMF) has been investigated. Dissolution of BER is highly influenced by parameters like temperature, size, WPCB:DMF etc. and it results separation of layers of WPCBs. WPCBs of 1cm2, 2cm2 and 3cm2 were separated into components after 120 min, 180 min and 240 min respectively at 408 K and 300 g/l. DMF after usage was recycled and analyzed by gas chromatography, proton and carbon nuclear magnetic resonance spectroscopy. Residue obtained after recycling of DMF was analyzed by Fourier-transforms infra-red spectroscopy and scanning electron microscope-energy dispersive X-ray. Investigation of mechanism of dissolution revealed that H-bonding plays a very important role. This technique featuring separation of different components, regeneration of DMF, recovery of BER makes the process extremely cost effective, negligible effluent generating and thus, resulting cleaner processing of WPCBs.
Proceedings Inclusion? Planned:


A Low Temperature Procedure for the Delamination of Brominated Epoxy Resin of Waste Printed Circuit Boards
Accelerating Life-cycle Management Protocols for New Generation Batteries
Addressing Criticality in Rare Earth Elements through Strategic Recycling
Characteristics of Municipal Solid Waste Incineration Bottom Ash with Particulate Matters PM2.5 ~PM10
D-4: Chronopotentiometry Applied to the Determination of Copper Transport Properties through a Cation-exchange Membrane
D-5: Effect of Flow Rate on Metals Adsorption of Synthetic Solution Using Chelating Resin Dowex XUS43605 in Column Experiments
D-6: Evaluation of the Silver Recovery from Solid Industrial Wastes in an Electrochemical Reactor
D-7: Preparation of Core-shell Fe3O4@SiO2 Nanoparticles from Iron Tailing via Chemical Co-precipitation Method
D-8: Recycling of Worn Lithium Ion Batteries through a Process of Co-grinding with PVC
D-9: Chemical Reduction of Fe(III) in Nickel Lateritic Wastewater to Recover Metals by Ion Exchange
Development of a Separation Process of NBR/ HNBR Rubber from Metal Substrate
Development of Open Source Software Tool for Life Cycle Assessment of Rare Earth Elements Production
Environmental Implications of Laser Metal Deposition: The Role of Feedstock Powder and Material Utilization Fraction
Fabrication of Aluminum Foam from Aluminum Scrap
Recovery of Aluminum from the Secondary Aluminum Production Dust
Recovery of Electrolytic Zinc from Aqueous Wastes: An Approach to the Industry of Hot Dip Galvanized
Recovery of Metals and Nonmetals from Waste Printed Circuit Boards (PCBs) by Physical Recycling Techniques
Scoping the Potential of Coal Ash as a Source of Rare Earth Elements
Understanding Scrap Recycling and the Potential of Hand-held Elemental Analyzers

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