Assertion: iron | /r/HasProperty | extracted
Facets:
value: from iron ore
type: OTHER
value: from excess oxygen
type: OTHER
value: from minerals
type: OTHER
value: from rocks
type: OTHER
value: by removing the oxygen
type: MANNER
Source sentences:
text: Iron is extracted from iron ore by removing the oxygen through its combination with a preferred chemical partner such as carbon which is then lost to the atmosphere as carbon dioxide.
text: Iron can be extracted from rocks or minerals, known as iron ore.
text: Steel is made by putting iron through a process known as smelting, where iron is extracted from the iron ore and excess oxygen is removed and the iron is combined with chemical partners such as carbon.
text: In smelting, a technician uses heat and a reducing agent to catalyze a chemical reaction that frees the iron so it can be extracted.
text: Iron is extracted from its oxide ore called HAEMATITE (Fe 2 O 3 ).