Process for producing premium coke and aromatic residues for the manufacture of carbon black

A process for producing premium coke and aromatic residue for the manufacture of carbon black which comprises using as a feed charge a mixture of 10% to 50% coal tar, said coal tar having the characteristic that the first 50% of its volume boils between 80.degree. C and 500.degree. C, and 90% to 50% decanted thermal or catalytic cracking oil, said mixture containing low Na, Fe, Cu, V and silicate values so that the ash value thereof is less than 0.15% by weight, the sulphur value is less than 3.5% and the asphaltene content is less than 8%;

• and submitting said charge to heating in a furnace and then leading it to coking drums where it undergoes delayed coking at a temperature between 450.degree. C and 510.degree. C., at a pressure of 1.7 to 4.0 manometric atmospheres, so as to produce premium coke and a top product, and then fractionating said top product to provide a heavy oil having high aromatic values, said heavy oil being useful as a raw material for producing carbon black.