Assertion: phosphoric acid's impurity | /r/CapableOf | collect concentrated liquid
Facets:
Source sentences:
text: acid and other impurities under pressure so as to prevent local ebullition and scale formation, spraying the heated liquid downward as a freely falling spray and in direct contact with an upwardly directed blast of warm air evaporating a portion of the liquid at a teniperature below ebullition, carrying oli the vapor so formed by the blast of air, collecting the concentrated liquid and precipitating the impurities by the concentration of the solution and the loss of heat,and drawing -off part of the liquid which contains the lower percentage of the impurities.