Impact of Grinding of Printed Circuit Boards on the Efficiency of Metal Recovery by Means of Electrostatic Separation Suponik, Tomasz ; Franke, Dawid ; Nuckowski, Paweł ; Matusiak, Piotr ; Kowol, Daniel ; Tora, Barbara Abstract Publication: Minerals Pub Date: March 2021 DOI: 10.3390/min11030281 Bibcode: 2021Mine...11..281S