Multiple frequency electrostatic coalescence
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United States of America Patent
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Apr 1, 2008
Grant Date -
Jul 7, 2005
app pub date -
Feb 15, 2005
filing date -
Aug 7, 2002
priority date (Note) -
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Abstract
A method of augmenting the separation of immiscible heavier and lighter components of an emulsion including the steps of conducting the emulsion into a treatment vessel, providing an AC voltage source, employing from the source an AC voltage of at least one selected frequency F.sub.1 to establish at least one electric filed within the vessel through which the emulsion passes, and cyclically modulating the AC voltage with a method of modulation selected from: (a) amplitude modulation; (b) frequency modulation; and (c) combined amplitude and frequency modulation.
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