Two-stage treating process

Claim 1

IN A PROCESS FOR THE CONVERSION OF HYDROCARBON OILS WHICH CONTAIN BASIC NITROGEN COMPOUNDS AND ORGANOMETALLIC COMPOUNDS, THE STEPS COMPRISING CONTACTING SAID HYDROCARBON OILS WHICH METHANOL IN A SOLVENT CONTACTING ZONE; RECOVERING A FIRST RAFFINATE AND A FIRST EXTRACT COMPOSED ESSENTIALLY OF METHANOL AND HIGHLY BASIC NITROGEN COMPOUNDS; PASSING SAID FIRST EXTRACT INTO PRIMARY DISTILLATION ZONE WHEREIN SAID FIRST EXTRACT IS SEPARATED INTO AN OVERHEAD FRACTION COMPOUND ESSENTIALLY OF METHANOL AND A BOTTOMS FRACTIOM COMPOUNDS ESSENTIALLY OF HIGHLY BASIC NITROGEN COMPOUNDS; PASSING SAID FIRST RAFFINATE INTO A SECORDARY DISTILLATION ZONE WHEREIN ANY METHANOL IN SAID FIRST RAFFINATE IS REMOVED OVERHEAD; PASSING SAID METHANOL-FREE FIRST RAFFINATE INTO AN ACID CONTACTING ZONE AND THERE CONTACTING THE RAFFINATE WITH 90 TO 116% PHOSPHORIC ACID IN AN AMOUNT IN EXCESS OF 0.10 POUND OF ACID PER GALLON OF RAFFINATE; PASSING THE RESULTING ACID-REFFINATE MIXTURE INTO A PRIMARY SETTLING ZONE; RECOVERING FROM SAID SETTLING ZONE AS THE BOTTOM LAYER A SECOND EXTRACT COMPOSED ESSENTIALLY