EP 4334038 A1 20240313 - MINERAL SEPARATION PROCESS
Title (en)
MINERAL SEPARATION PROCESS
Title (de)
VERFAHREN ZUR TRENNUNG VON MINERALIEN
Title (fr)
PROCÉDÉ DE SÉPARATION DE MINÉRAUX
Publication
Application
Priority
- GB 202106456 A 20210506
- EP 2022060571 W 20220421
Abstract (en)
[origin: GB2606379A] A wet magnetic separation process for beneficiating (extracting and concentrating) paramagnetic lithium-mica minerals from a milled feed stream 2A containing paramagnetic lithium-mica minerals and gangue materials. The process comprises feeding a milled feed stream containing paramagnetic lithium-mica minerals into a Wet High Gradient Magnetic Separator (WHGMS) 22 and obtaining a magnetic product stream 6 comprising concentrated paramagnetic lithium-mica mineral, and a waste stream 7 containing non-magnetic gangue materials therefrom. The WHGMS can provide a magnetic field with a magnetic field strength in the range between 0.2 and 1.5 Tesla. The WHGMS can be a Vertical Pulsating Wet High Gradient Magnetic Separator (VPWHGMS). Suitably, the milled stream is fed into a Low Intensity Magnetic Separator (LIMS) 20 having a first magnetic field strength to provide a first highly magnetic waste stream and a low magnetic first product stream 5 comprising paramagnetic lithium-mica minerals, and subsequently feeding the low magnetic first product stream into a first WHGMS having a second magnetic field strength which is greater than the first magnetic field strength of the LIMS. An apparatus for the wet magnetic separation of milled paramagnetic lithium-mica minerals is also claimed.
IPC 8 full level
B03C 1/025 (2006.01)
CPC (source: EP GB)
B03C 1/025 (2013.01 - EP GB); B03C 1/30 (2013.01 - GB); B03C 2201/18 (2013.01 - GB)
Citation (search report)
See references of WO 2022233586A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
GB 2606379 A 20221109; AU 2022268510 A1 20231026; CA 3214482 A1 20221110; CN 117295557 A 20231226; EP 4334038 A1 20240313; WO 2022233586 A1 20221110
DOCDB simple family (application)
GB 202106456 A 20210506; AU 2022268510 A 20220421; CA 3214482 A 20220421; CN 202280031210 A 20220421; EP 2022060571 W 20220421; EP 22724675 A 20220421