Solvent deasphalting process

Claim 1

A PROCESS FOR PRODUCING CRACKABLE OIL FROM PETROLEUM RESIDUUM CONTAINING OIL, ASPHALTENES, AND METAL COMPOUNDS, WHICH COMPRISES SEPARATING SAID RESIDUUM BY SOLVENT EXTRACTION WITH A LIQUID NORMALLY-GASEOUS HYDROCARBON SOLVENT INTO A MAJOR ASPHALTIC RAFFINATE AND A MINOR DEASPHALTED OIL EXTRACT CONTAINING LESS THAN 4 P.P.M. METALS AND SUITABLE FOR CATALYTIC CRACKING, SEPARATING AT LEAST THE MAJOR PORTION OF SAID ASPHALTIC RAFFINATE BY DUAL SOLVENT EXTRACTION SIMULTANEOUSLY WITH A LIGHT SOLVENT FOR OIL COMPRISED OF A NORMALLY LIQUID PARAFFIN HAVING BETWEEN 5 AND 10 CARBON ATOMS TO THE MOLECULE AND WITH AN IMMISCIBLE SECOND SOLVENT FOR ASPHALTENES COMPRISING AQUEOUS PHENOL CONTAINING BETWEEN 2 AND 25 WEIGHT PERCENT WATER, IN A COUNTERCURRENT EXTRACTION ZONE, RECOVERING A MINOR ASPHALTENE CONCENTRATE FROM THE RESULTING HEAVY LIQUID PHASE, RECOVERING A MAJOR DEASPHALTENED OIL CONTAINING BETWEEN 10 AND 200 P.P.M. METALS AND