Patent ID: 8349285

Claim:
A pyrolytic carbon black having; in combination a) an ash content ranging between 9-15%; b) a toluene discoloration at 425 mu of between 80-90% transmission; c) an iodine adsorption between 30 and 45 mg/g; d) a pour density of between 24-26 lb/ft 3 ; e) an n-dibutyl phthalate absorption number of up to 65 cc/100 gm; and, when produced from a continuous recycling process for rubber tires comprising the steps of: a) shredding cleaned rubber tires into shreds less than 2″ long; b) pyrolyzing the shreds in a reaction chamber of a thermal processor in a first anaerobic environment to produce a char; wherein the temperature within the reaction chamber is between 450-550° C.; c) drawing off volatile organics from the reaction chamber; d) removing the char from the reaction chamber; e) cooling: the char in a second anaerobic environment; f) removing metal and textile components from the char to obtain pyrolytic carbon black; and, g) milling and sizing the pyrolytic carbon black so obtained into particles of 325 mesh size or less.