METHOD OF TREATING CARBON BLACK TO REMOVE SOLIDIMPURITIES Russian patent published in 2004 - IPC

FIELD: carbon materials.

SUBSTANCE: carbon black stream is fed into main inertia separator 3 over connection pipe 2. Mixed carbon block-gas stream with large-size impurities centers second inertia separator 7 over axial connection pipe 5. separated solid impurities are withdrawn through sluice gate 8, whereas purified stream is with drown through connection pipe 9 to be returned into main inertia separator 3. carbon black-gas stream with solid impurities having diameter below 45 mcm is discharged through tangential connected pipe 4 into catching apparatus 1 and then into cyclone 11, from which purified carbon black is discharged. 95-98% impurities is thus caught.

EFFECT: reduced hydraulic resistance in system and increased productivity of installation.

1 dwg