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1.
公开(公告)号:US20210316316A1
公开(公告)日:2021-10-14
申请号:US17268160
申请日:2019-08-06
Applicant: BASF SE
Inventor: Wolfgang ROHDE , David Johann GILBERT , Bernhard SCHULER , Oliver KUHN , Michael MENTGES
Abstract: The present invention relates to a process for concentrating desired particles comprising a carrier-magnetic-separation comprising the following steps a) providing a feedstock which contains the desired 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 desired particles or of the magnetic particles and the undesired material; c) separating the agglomerates from the loaded feedstock by a separation method which results in isolated agglomerates, where the separation method is selected from sorting, electric separation, magnetic separation, screening, classification, gravity concentration, and flotation; d) breaking up the isolated agglomerates to obtain a suspension comprising the magnetic particles in desagglomerated form; and e) separating the magnetic particles from the suspension obtained in step d) by a separation method selected from sorting, electric separation, magnetic separation, screening, classification, gravity concentration, and flotation.
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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.
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