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A flotation process based on surface-tension phenomena, accelerated by
means of addition to the pulp of small quantities of oil and air in minute
subdivision. Only about 0.1% oil is added, and the pulp is violently
agitated for 1 to 10 min. Innumerable small bubbles of air are thus
mechanically introduced, which join the oil-coated particles. These are
then removed in a spitzkasten. Exposure to the air after this treatment
then aerates any mineral that has not already taken up its oil film, after
which a second spitzkasten treatment removes this. An early name for froth
flotation. Liddell; Pryor, 3
Source:
Dictionary of Mining, Mineral, and Related Terms
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