froth flotation

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flotation

or froth flotation

Most widely used process for extracting many minerals from their ores. The method separates and concentrates ores by altering their surfaces so that they are either repelled or attracted by water. Unwetted particles, which adhere to air that is bubbled through the water, will float in the froth, while wetted particles will sink. The process was developed on a commercial scale early in the 20th century to remove very fine mineral particles that formerly had gone to waste in gravity concentration plants. With its use to concentrate copper, lead, and zinc minerals, which commonly accompany one another in their ores, many complex ore mixtures formerly of little value have become major sources of certain metals.

froth flotation [¦frȯth flō′tā·shən]

(engineering)

A process for recovery of particles of ore or other material, in which the particles adhere to bubbles and can be removed as part of the froth.

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No references found			Some specific areas covered include flotation thermodynamics, flotation reagents, mechanical froth flotation cells, and sulfide and nonsulfide minerals. Froth flotation; a century of innovation. (CD-ROM included) by SciTech Book News APPLICATION: This laboratory technique allows quantitative and systematic study of froth flotation and dissolved-air flotation processes important to the paper recycling industry. Visualization of toner ink adsorption at bubble surfaces by Duke, Steve R. / Solutions - for People, Processes and Paper			frost zone Frost, Andrei Frost, Andrei Vladimirovich Frost, Arthur Burdett Frost, Jack Frost, Robert Frost, Robert Lee Frost, Sir David Frost-Free Period frost-point hygrometer frost-point technique frost-protection blanket Frostbite frosted frosted finish frosted glass frosted lamp bulb frosted work frosting frostless zone frostproof closet Frosts frostweed frosty mildew froth froth flotation froth promoter froth-flotation process frother frothing frothing agent frothing collector Frothingham, Octavius Brooks frottage Frottola frotz frotzed Froude Froude Number Froude number 1 Froude number 2 Froude Pendulum Froude, James Anthony Froude, William frow Froward frowney frowy frozen frozen flux frozen fog			Frostnip frostproof closet frosts frosts frosts frosts Frosts of Sweden frostweed frostweed Frostwolf Graveyard frostwork frostwort frosty Frosty (Wendy's Food) Frosty (Wendy's) frosty face frosty mildew Frosty, Heidi, and Frank Frot Frota Nacional de Petroleiros SA Frote Froterer froth froth froth froth at the mouth Froth floatation Froth floatation Froth floatation process Froth floatation process froth flotation Froth fly Froth fly Froth insect froth promoter Froth spit froth up Froth-flotation process Froth-flotation process Froth-fly Froth-fly frothed frothed frothed at the mouth frothed at the mouth frother frothier frothier frothiest frothiest frothily frothily frothiness frothiness frothing frothing frothing agent frothing at mouth frothing at the mouth frothing at the mouth frothing collector

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