Patent ID: 8388215

Claim:
A modified asphalt Contactor reactor for blending and reacting asphalt cement and modifiers comprising: a vertically oriented vessel having an outer shell having an internal surface and an external surface, a lower end and a flat flanged top; a removable internal circulation tube having a base, a top and an outside surface, wherein the outside surface of the internal circulation tube and the internal surface of the outer shell forms an annulus; at least two leaf springs or brackets coupled to the top of the internal circulation tube to hold the internal circulation tube in place; an overflow nozzle above the circulation tube; a nozzle below the top of the circulation tube for continuous flow operation; a heating jacket having heating oil inlet and a heating oil outlet coupled to the external surface of the outer shell for circulation of heating oil; and a hydraulic head assembly having an impeller coupled to the lower end of the vertically oriented vessel wherein the impeller is located near the base of the internal circulation tube, wherein the impeller and the annulus are of sufficient size to facilitate the flow of high viscosity fluids.