Printed Circuit Board Recycling: Physicochemical And Economic Analysis Of Metals

Published:

January 5, 2022

Author:

Marcos Paulo Kohler Caldas, Monica Maria Jiménez Correa, Flávia Paulucci Cianga Silvas, Viviane Tavares de Moraes, Jorge Alberto Soares Tenório, Denise Crocce Romano Espinosa

Abstract:

This study aims to present the characterization of five different types of printed circuit boards (PCBs) for use in future recycling processes. PCBs used: motherboards, lead free motherboards, video cards, memory and printer cards. The comminution of the circuit boards was performed using blade mills and hammer mills with 9mm and 6mm meshes, respectively. Throughout the physical processing, analysis was made with stereoscopic optics to ensure that the correct materials had been released. The pre-magnetic separation parts were given a granulometric classification followed by acid digestion and loss on ignition tests....

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