US 2019/0210882 A1 · System and Method for Producing High Purity Particulate Graphite

Abstract

A reactor vessel is provided having a solids feed opening for particulate graphite and a product outlet for purified particulate graphite. The vessel has an interior volume for containing the graphite particles, with a plurality of gas feed openings at the bottom of the interior volume, near the centre-line, for feeding of chlorine-containing gas, wherein the chlorine-containing gas passes through the particulate graphite, fluidizing the particulate graphite. Electrodes are provided which function to heat the particulate graphite, as it is carried upwards under the fluidizing effect of the centrally injected chlorine-containing gas. When the heated graphite particles react with the chlorine gas, purified particulate graphite is formed and may be extracted through the product outlet.

Claims20

Dependent claims

A reactor for the purification of fluidizable particulate graphite comprising:

a reaction vessel comprising an interior volume for containing the particulate graphite, a solids feed inlet to feed particulate graphite into the interior volume of the vessel, a product outlet for withdrawal of purified particulate graphite from the vessel, a plurality of gas feed openings formed in the bottom of the reaction vessel for feeding chlorine-containing fluidizing gas into the interior volume of the vessel to fluidize the particulate graphite and an off-gas outlet for withdrawal of process off-gases from the vessel;
and
at least two electrodes that extend into the interior volume of the vessel so as to be submerged in fluidized particulate graphite in the vessel, said electrodes being adapted to heat the particulate graphite.

Dependencies are inferred from the claim text.

System and Method for Producing High Purity Particulate Graphite

Life of this patent

System and Method for Producing High Purity Particulate Graphite

Life of this patent

Abstract

Claims20