METHOD OF PRODUCING CARBON BLACK FROM RUBBER WASTE Russian patent published in 2006 - IPC C09C1/48 C08J11/14 C10B53/00 

FIELD: rubber industry.

SUBSTANCE: rubber waste is subjected to thermal decomposition in vapor-gas reactor. Decomposition products are separated into vapor-gas products and solid carbon residue, from which metal is recovered via magnetic separation and remaining parts is disintegrated. Separated vapor-gas products are condensed to isolate oil, which is subjected to thermal decomposition at 900-2000°C into carbon black and gases. The latter are burned down and combustion products are used as external heating of rubber waste decomposition reactor. Vapor-gas products freed of oil are burned down together with disintegrated carbon residue at air excess factor 0.4-0.9. Combustion products are filtered to isolate carbon black.

EFFECT: reduced power consumption, achieved complete processing of waste, and improved environmental condition due to reduced formation of toxic substances.

4 cl, 1 dwg, 2 ex