Froth flotation of fine particles
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United States of America Patent
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Jun 8, 1993
Grant Date -
N/A
app pub date -
Mar 25, 1992
filing date -
Mar 28, 1991
priority date (Note) -
Expired
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Abstract
Particles of a desired mineral are separated from an aqueous slurry containing the desired particles and particles of an undesired mineral by adding a collector, a frother and an alkylated polymer of vinylpyrrolidone, and then floating off the desired particles in a froth flotation cell.
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