Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

An Innovative Magnetic Density Separation Process

Version 1 : Received: 18 March 2024 / Approved: 18 March 2024 / Online: 19 March 2024 (06:59:37 CET)

How to cite: Wang, L.; Rem, P.; Di Maio, F.; Van Beek, M.; Tomás, G. An Innovative Magnetic Density Separation Process. Preprints 2024, 2024031063. https://doi.org/10.20944/preprints202403.1063.v1 Wang, L.; Rem, P.; Di Maio, F.; Van Beek, M.; Tomás, G. An Innovative Magnetic Density Separation Process. Preprints 2024, 2024031063. https://doi.org/10.20944/preprints202403.1063.v1

Abstract

Motivated by the PEACOC project on metal recovery from solid wastes, an innovative magnetic density separation (MDS) process has been developed for granular material sorting. It has intrinsic advantages over the existing industrialized MDS by eliminating fluid turbulence and particle jamming problems. The new MDS applies an inclined planar magnet and a horizontal basin containing a static magnetic fluid as the separation medium. A particle sliding phenomenon is identified as a feature of the process which could help the separation. The MDS successfully sorted shredded PCBAs to concentrate valuable metals and sorted shredded wires to reduce metallic contaminants in the plastic fractions. A pilot scale facility is introduced to show the design to achieve continuous production and to reduce the consumption of ferrofluid.

Keywords

magnetic density separation; magnetic fluid; granular sorting; particle sliding phenomenon; solid waste; wasted PCBAs; wasted wires

Subject

Engineering, Mining and Mineral Processing

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