About: http://webisa.webdatacommons.org/364042642

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It involves flash distillation in an evaporator at about 100-200????C in partial vacuum to remove water and low boiling contaminants e.g. gasoline and solvents.
http://www.w3.org/ns/prov#wasQuotedFrom	niir.org