Assertion: raw phosphoric acid | /r/CapableOf | evolve vapor
Facets:
value: from said spray
type: OTHER
Source sentences:
text: The method of concentrating and purifying raw phosphoric acid which comprises heating the acid to a temperature short of ebullition, projecting the hot acid in a freely falling, spray, evolving vapor from said spray, carrying said vapor ofi by a counter iow stream of air, cooling and concentrating said acid while in motion by carrying oil said vapor, causing the precipitation of a sludge by said cooling Aand concentration, and collecting the liquid spray bearing thel sludge and separating out the 18.