The mixture of {HEAD ~ deasphalting residue} and heavy oil results in a novel dispersion that is suitable for {TAIL ~ use} as an asphalt 
The mixture of { HEAD ~ deasphalting residue } and heavy oil results in a novel dispersion that is suitable for { TAIL ~ use } as an asphalt
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH