Preparative analytical technique to isolate surfactant from...

Details Preparative analytical technique to isolate surfactant from... Preparative analytical technique to isolate surfactant from...

G - Physics

01

N

G01N 33/28 (2006.01) B01D 17/038 (2006.01) B01D 17/04 (2006.01) B01D 21/26 (2006.01)

Patent

CA 2118970

ABSTRACT This invention is directed to a preparative analytical technique for isolating a surfactant from an oil/water emulsion. First, a sludge sample containing said emulsion is separated into separate oil, water and solid phases. Thereafter, water droplets are injected into the oil phase. The water droplets fall through the oil phase, causing surfactant in the oil phase to adhere to said droplets which form a high-internal-phase- ratio (HIPR) water-in-oil emulsion that is rich in surfactants. This emulsion is subsequently separated into an oil and a water phase. The separated surfactant-rich oil phase is then analyzed to obtain information concerning the surfactant.

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