MULTISTAGE METHOD OF PRODUCING FURNACE CARBON BLACK Russian patent published in 1998 - IPC

FIELD: methods for producing carbon black for use as filler, dye and reinforcing agent in rubber and plastic articles. SUBSTANCE: method is carried out in reactor having zone of fuel burning, zone of injection of hydrocarbon initial raw material, reaction zone of thermal decomposition of initial raw material, zone of abrupt cooling, separation and reduction of produced black. In so doing, unreacted hydrocarbon or hydrogen is introduced into reaction zone, and initial level of burning and level of complete combustion is regulated so that degree of structurization of carbon black is less than zero. EFFECT: higher efficiency. 17 cl, 1 dwg, 14 tbl