Any hydrocarbon or hydrocarbon mixture with {HEAD ~ an appropriate freeze point} can be used as a solvent for {TAIL ~ the process} 
Any hydrocarbon or hydrocarbon mixture with { HEAD ~ an appropriate freeze point } can be used as a solvent for { TAIL ~ the process }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL