Assertion: blast furnace | /r/HasProperty | replaced by rotary furnaces
Facets:
value: except the united states
type: OTHER
value: in most of the world
type: LOCATION
Source sentences:
text: Blast furnaces used to be the main way secondary lead was smelted, however they have been replaced by rotary furnaces in most of the world except the United States; blast furnaces are still the most commonly used process for recycling lead in the US.