公开(公告)号：US20200290880A1

公开(公告)日：2020-09-17

申请号：US16651413

申请日：2018-09-18

Applicant: BASF SE

Inventor： Wolfgang ROHDE ,  Andreas LUZ ,  Michael MENTGES ,  Oliver KUHN ,  Rodrigo Enrique MUNIZAGA

IPC: C01B32/215 ,  B03C1/00 ,  H01F1/28

Abstract: A process for concentrating graphite particles comprising a) providing a feedstock which contains the graphite particles and an undesired material, b) adding hydrophobic magnetic particles to the feedstock which results in a loaded feedstock containing agglomerates of the magnetic particles and the graphite particles, and c) separating the agglomerates from the loaded feedstock by a magnetic field which results in isolated agglomerates.