US 11,878,908 B2
Method for preparation and separation of atomic layer thickness platelets from graphite or other layered materials
Oleksandr Savsunenko, London (GB); Elena Polyakova, Bohemia, NY (US); and Daniel Stolyarov, Bohemia, NY (US)
Assigned to G6 MATERIALS CORP., Ronkonkoma, NY (US)
Filed by G6 Materials Corp., Ronkonkoma, NY (US)
Filed on Aug. 30, 2021, as Appl. No. 17/461,324.
Application 17/461,324 is a division of application No. 14/867,751, filed on Sep. 28, 2015, granted, now 11,104,577.
Claims priority of provisional application 62/058,313, filed on Oct. 1, 2014.
Prior Publication US 2021/0387856 A1, Dec. 16, 2021
Int. Cl. C01B 32/19 (2017.01); B07B 7/00 (2006.01); C01B 32/196 (2017.01); C01B 32/192 (2017.01); C01B 32/194 (2017.01)
CPC C01B 32/19 (2017.08) [B07B 7/00 (2013.01); C01B 32/192 (2017.08); C01B 32/194 (2017.08); C01B 32/196 (2017.08)] 14 Claims
OG exemplary drawing
1. A system for separating graphene nanoplatelets (GNP) from initial graphite raw material, the system comprising:
an exfoliation module for exfoliating the raw material to create a percentage of separated GNP in a resulting bulk mixture;
an agglomerate breaking module coupled to the exfoliation module to break up agglomerates between the separated GNP in the bulk mixture; and
a separation module coupled to the agglomerate breaking module, separating the mixture into particles having different fractions of GNP content and size distribution.