PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Kroll is the pyrometallurgical industrial process used to produce titanium. ??? ???mital's kroll at master - GitHub???, Magnesium is recovered from a slag produced in a pyrometallurgical process and which contains magnesium oxide and other oxides.
http://www.w3.org/ns/prov#wasQuotedFrom
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