Separation of {HEAD ~ 3 methyl 2 butanol} from 1 butanol by {TAIL ~ azeotropic distillation} 
by
Separation of { HEAD ~ 3 methyl 2 butanol } from 1 butanol by { TAIL ~ azeotropic distillation }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL