Preferably {HEAD ~ the apparatus} of the invention is for removing {TAIL ~ impurities} which have a relative volatility between that of EO and water 
is for removing
Preferably { HEAD ~ the apparatus } of the invention is for removing { TAIL ~ impurities } which have a relative volatility between that of EO and water
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH