Method for separation of coarse particules
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United States of America Patent
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Apr 18, 1989
Grant Date -
N/A
app pub date -
Nov 27, 1987
filing date -
Nov 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure herein describes a method for the separation of hydrophobic from hydrophilic materials in a liquid suspension by means of gas bubbles and a flow of water that drags the hydrophobic material upwards. A distinctive feature of the method is an upward flow of water countercurrent to the flow of settling hydrophilic particles. The disclosure describes a cell in which gas is caused to disperse into an ascending flow of liquid and in which a feed port is provided to introduce particles in a flow countercurrent to that of the bubbles and water.
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