Assertion: butadiene | /r/HasProperty | recovered by fractionation
Facets:
value: alone
type: MANNER
Source sentences:
text: when present inquantities equal to or less than that required to form the azeotrope with butadiene, it tends to become the limiting factor in regard to the purity of the butadiene that can be recovered by fractionation alone, bec'ause in fractionation it goes overhead with the butadiene.