Electrical coalescense of liquid emulsions

Details Electrical coalescense of liquid emulsions Electrical coalescense of liquid emulsions

C - Chemistry, Metallurgy

02

F

204/97.07

C02F 1/48 (2006.01) B01D 17/06 (2006.01) B01D 61/40 (2006.01) C10G 33/02 (2006.01)

Patent

CA 1179971

ABSTRACT OF THE DISCLOSURE An improved process for electrically coalescing water-in-oil emulsions in an AC electrical field, where- in the improvement comprises using insulated electrodes having a dielectric constant which is at least about 3 and having a hydrophobic surface in contact with the emulsion. This invention results in faster coalescence of the emulsion than can be obtained with insulated electrodes having a lower dielectric constant, even if the electrode-emulsion interface is hydrophobic. For- mation of spongy emulsion and decomposition of the oil phase under the high voltages required for rapid coalescence is minimized and even eliminated.

408026

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