Assertion: potassium chloride | /r/HasProperty | concentrate
Facets:
value: by subjecting ores
type: MANNER
value: heretofore
type: TEMPORAL
Source sentences:
text: Potassium Chloride, Concentrate
text: Heretofore, potassium chloride has been concentrated by subjecting ores containing potassium chloride such as sylvinite to froth flotation and then to crystallization treatments.
text: Potassium Chloride, Concentrate