The use of infrared radiation in detection methods to defoam aqueous systems

摘要: We have found that foam generated from an aqueous medium can a thermal insulating effect. The creation of substantial volume on the surface reduce apparent IR emission substantially when compared to free foam. This difference in infrared be used control addition defoaming agent medium. In method invention, detector is measure and during operations such measurement under foaming conditions. As develops medium, less than emissions drop as develops, between temperature measured emissions, drops. Such trigger which volume. reduced, returns value near inverting without At this point, composition reduced or stopped. During method, predetermined limit established at introduced into long foamed different foam, continually added Further, permits amount proportion above preset limit.