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Improved flotation kinetics by intense in-line agitation.
Hood GD; Jordan CE
1991 SME Annual Meeting, February 25-28, 1991, Denver, Colorado. Littleton, CO: Society for Mining, Metallurgy & Exploration, preprint 91-142 1991 :1-6
The U.S. Bureau of Mines investigated rapid froth flotation through the use of more efficient bubble-particle collisions that improved the overall flotation kinetics. An in-line static mixer efficiently mixed the air bubbles, water, and ore, rapidly attaching the hydrophobic mineral to the bubble surface. As the mixture entered the flotation chamber, the hydrophobic mineral was already attached to the bubbles and was quickly floated away from the remaining ore pulp. A rougher concentrate containing 4.5 pct copper was obtained from a western porphyry copper ore containing 0.67 pct copper. Over 99 pct copper was recovered from the ore at a rate seven times faster than conventional flotation.
OP; Conference/Symposia Proceedings
1991 SME Annual Meeting, February 25-28, 1991, Denver, Colorado, preprint 91-142
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