Breaking oil-in-water emulsion by cation addition and...

Details Breaking oil-in-water emulsion by cation addition and... Breaking oil-in-water emulsion by cation addition and...

C - Chemistry, Metallurgy

02

F

204/89.5

C02F 1/46 (2006.01) B01D 17/04 (2006.01)

Patent

CA 1113035

ABSTRACT OF THE DISCLOSURE This disclosure is directed to a method of break- ing an oil-in-water emulsion. Briefly, the method includes the steps of adjusting the pH of the oil-in-water emulsion to a pH in the range of 6 to 10. At least one part per million of a cation selected from Fe+2, Fe+3, Al+3, Cu+1 and Cu+2 is added to the oil-in-water emulsion. Thereafter, the oil-in-water emulsion is treated with a dissolvable iron electrode, the electrode being dissolvable by trans- mitting an electric current thereto. Sufficient electric current is transmitted through the electrode to develop a ferrous ion/oil weight ratio of at least 0.02. After treatment by the dissolvable electrode, the oil-in-water emulsion is held until the emulsion breaks.

290845

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