a method of compatibilization asphaltenes containing bituminous liquids which process comprises : a ) reacting an asphaltene with phosphorous trichloride to form a phosphochlorinated asphaltene containing from about 0 . 01 wt % to about 20 wt % phosphorous ; b ) reacting the phosphochlorinated asphaltene with an equimolar amount of aliphatic or aromatic amines and polyamines selected from the group consisting of : a piperzine ; an aliphatic amine ; an alkyl piperdize ; an aligomeric mixed polyether aliphatic terminal diamine ; an oligomeric polyether aliphatic terminal amine ; an oligermic polyether aliphatic terminal triamine ; a substituted aromatic polyether terminal amine ; and an oligomeric or polymeric amine to produce a capatibilized asphaltene ; and recovering the asphaltene product .