METHOD OF PREPARING RAW COMPOSITION Russian patent published in 1997 - IPC

FIELD: in commercial carbon industry, more particularly preparation of raw composition for manufacture of carbon black. SUBSTANCE: coumarone is first dissolved in naphthaline oil and the resulting mixture is mixed with fraction after treatment of coal-rar resin having average volumetric boiling temperature of 360-420 C during heating operation. Moisture is removed from said mixture, the latter is further heat treated and used to product carbon black. Coumorone is dissolved at 85-90 C in amount to maintain coumarone content in the mixture at 5-12 wt%. Coumarone dissolution time is 8-12 hours. EFFECT: more efficient preparation method.