METHOD FOR PRODUCING SYNTHETIC GRAPHITE Russian patent published in 2017 - IPC C01B31/04 

FIELD: power industry.

SUBSTANCE: at first coke crushed to a size less than 100 micron with a density of 1.38-2.02 g/cm³ is mixed with pitch with a melting point of 85-135°C taken in excess. The excess pitch is removed simultaneously with mixing the primary components in the mixing units during the thermopolycondensation reaction at the mixing time from 10 to 30 hours and at temperature of from 240 to 320°C under atmospheric pressure. The resulting composition is pulverized to powder with a particle size of 100% less than 500 microns from which semifinished products are pressed. The pressed semifinished products are heat treated in two stages with intercooling: in the first - at 1000±200°C, in the second - at 2600±300°C. The produced synthetic graphite has a density of 1.79-1.81 g/cm³ and a strength of 90 MPa. The range of density indicators of the produced synthetic graphite is ± 0.1 g/cm³. The method is eco-friendly by reducing the amount of volatile matters.

EFFECT: reduced number of process steps, less equipment units, reduced labor costs.

2 cl, 1 tbl, 9 ex