EFFECT OF ULTRASONIC PROCESSING ON THE AMINE HYDROCHETIC SOLUTION A FOAMING ABILITY
Flotation reagents are able to effectively influence the degree of extraction of potassium chloride and its commercial properties. Some reagents at the stage of sylvinite flotation form mineralized foams, which must have certain properties in order to avoid loss of a valuable component and facilitate the removal of potassium chloride crystals into the foam product. The foam should be stable, dense, but at the same time mobile and, if necessary, easily collapse. The foaming ability of an amine hydrochetic emulsion depends on temperature, reagent concentration and other external influences. In this work, we studied the effect of ultrasonic effects on the foaming ability of an amine hydrochetic emulsion and the stability of the resulting foam with a short processing time (up to 150 s). The object of research was an emulsion of amine hydrochetic of the summer type of composition C17-C22 with a mass concentration of 0.8%. The foaming ability of the emulsion before and after exposure to ultrasound and the stability of the foams were assessed using a DFA100 foam analyzer. The duration of the measurements was 5 minutes. Foam stability was assessed using a modified Ross-Miles method. It has been established that the preliminary action of ultrasound of short duration and different power has a different effect on the foaming ability and stability of the foams of the amine hydrochetic solution. The most stable foam is formed with treatment times of 60 and 150 seconds. A 30 second treatment is not sufficient to achieve the optimum effect. With a duration of 150 s, a defoaming effect may occur associated with the resulting excessive deep ultrasonic exposure. In any case, the amount of foam and its stability are an order of magnitude higher with the use of a short-time preliminary ultrasonic treatment than without the use of ultrasonic treatment.