Process for decolorizing petroleum ceresin

Claim 1

A PROCESS FOR THE SUBSTANTIALLY COMPLETE REMOVAL OF COLOR FROM A PETROLEUM CERESIN COMPRISING PASSING THE PETROLEUM CERESIN IN THE PRESENCE OF HYDROGEN OVER A SULFIDED SUPPORTED CATALYST COMPRISING A MIXTURE OF AT LEAST ONE METAL SELECTED FROM GROUP VI-B AND AT LEAST ONE METAL SELECTED FROM GROUP VIII, THE ATOMIC RATIO OF GROUP VIII AND GROUP VI-B METALS BEING BETWEEN 0.2:1 AND 5:1, SAID CATALYST CONTAINING BETWEEN 0.4 AND 6 PERCENT BY WEIGHT OF HALOGEN AND SAID CATALYST CONTAINING BETWEEN 0.2 AND 15 PERCENT BY WEIGHT OF SULFUR, AT A HYDROGENATION TEMPERATURE OF 525*F. TO 725*F., A SPACE VELOCITY OF 0.25 TO 3.5 LIQUID VOLUMES OF CHARGE PER HOUR PER VOLUME OF CATALYST AND A PRESSURE ABOVE 1500 POUNDS PER SQUARE INCH GAUGE AND RECOVERING A PRODUCT COMPRISING PRIMARILY CERESIN HAVING A REDUCED DEGREE OF UNSATURATION AS COMPARED TO THE CHARGE, SAID PROCESS RESULTING IN SUBSTANTIALLY NO CRACKING.