Method and device for concentrating substances in solid particle state
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United States of America Patent
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Nov 27, 2012
Grant Date -
Jan 15, 2009
app pub date -
Sep 27, 2006
filing date -
Sep 27, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for concentrating a particulate matter, comprising at least two constituents of different densities, in which a slurry of particulate matter is subjected to centrifugation and to centripetal pulses in a centrifugation chamber. A dense fraction of the slurry and a light fraction of the slurry are drawn off separately from the centrifugation chamber. In order to produce the centripetal pulses, a fluid is injected into the slurry, in a direction oblique or tangential to the direction of centrifugation. The fluid is injected substantially continuously into the slurry.
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