Assertion: neptunium's isotope | /r/HasProperty | extracted as byproduct
Facets:
value: in plutonium production
type: LOCATION
value: from spent nuclear fuel rods
type: LOCATION
value: most often
type: DEGREE
Source sentences:
text: The isotope 237Np is produced through the reduction of 237NpF 3 with barium or lithium vapor at around 1200 °C and is most often extracted from spent nuclear fuel rods as a byproduct in plutonium production.