title: Separation of the metallic and non-metallic fraction from printed circuit boards employing green technology.
abstract: The generation of electrical and electronic waste is increasing day by day; recycling is attractive because of the metallic fraction containing these. Nevertheless, conventional techniques are highly polluting. The comminution of the printed circuit boards followed by an inverse flotation process is a clean technique that allows one to separate the metallic fraction from the non-metallic fraction. It was found that particle size and superficial air velocity are the main variables in the separation of the different fractions. In this way an efficient separation is achieved by avoiding the environmental contamination coupled with the possible utilization of the different fractions obtained.
authors.affiliation: Tecnológico Nacional de México, Instituto Tecnológico de Saltillo (ITS), Departamento de Posgrado e Investigación, Departamento de Mecánica-Mecatrónica, Venustiano Carranza No. 2400, Col. Tecnológico, Saltillo, CP 25280 Coahuila, México. Electronic address: rhestrada@itsaltillo.edu.mx.
authors.forename: R H
authors.initials: RH
authors.lastname: Estrada-Ruiz
authors.affiliation: Tecnológico Nacional de México, Instituto Tecnológico de Saltillo (ITS), Departamento de Posgrado e Investigación, Departamento de Mecánica-Mecatrónica, Venustiano Carranza No. 2400, Col. Tecnológico, Saltillo, CP 25280 Coahuila, México. Electronic address: rcampos@itsaltillo.edu.mx.
authors.forename: R
authors.initials: R
authors.lastname: Flores-Campos
authors.affiliation: Tecnológico Nacional de México, Instituto Tecnológico de Saltillo (ITS), Departamento de Posgrado e Investigación, Departamento de Mecánica-Mecatrónica, Venustiano Carranza No. 2400, Col. Tecnológico, Saltillo, CP 25280 Coahuila, México. Electronic address: hgamez@itsaltillo.edu.mx.
authors.forename: H A
authors.initials: HA
authors.lastname: Gámez-Altamirano
authors.affiliation: Tecnológico Nacional de México, Instituto Tecnológico de Saltillo (ITS), Departamento de Posgrado e Investigación, Departamento de Mecánica-Mecatrónica, Venustiano Carranza No. 2400, Col. Tecnológico, Saltillo, CP 25280 Coahuila, México. Electronic address: ejvelarde@itsaltillo.edu.mx.
authors.forename: E J
authors.initials: EJ
authors.lastname: Velarde-Sánchez
keywords: Inverse flotation; Printed circuit board; Recycling