Cabot Corporation
METHODS AND APPARATUS FOR THE PRODUCTION OF GRAPHITE OXIDE AND REDUCED GRAPHENE OXIDE

Abstract:

Methods for the production of reduced graphene oxide worm (rGOW) particles. Graphite particles are placed in mixture of nitric acid and sulfuric acid. A supply of chlorate is provided to the graphite reaction mixture while it is agitated by a sparger. The resulting graphite oxide slurry is pumped to a tangential filtration system where it is purified and concentrated. The concentrated slurry is then fed to a high temperature spray dryer where it is simultaneously dried and chemically reduced to produce rGOW particles.