PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Preferably the feed is a mixture comprised of normal butenes and isobutene known as butene raffinate which is discharged from a butadiene recovery unit.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es