Demulsification of bitumen emulsions using cationic polymers

Details Demulsification of bitumen emulsions using cationic polymers Demulsification of bitumen emulsions using cationic polymers

B - Operations, Transporting

01

D

134/54

B01D 19/04 (2006.01)

Patent

CA 1205717

DEMULSIFICATION OF BITUMEN EMULSIONS USING CATIONIC POLYMERS (D#75, 908 -F) ABSTRACT OF THE DISCLOSURE A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsi- fiers are used. These demulsifiers are cationic polymers of equal to or greater than about 2,000 molecular weight ob- tained by the reaction of polyalkoxydiamines with epihalo- hydrins. To resolve the bituminous petroleum emulsions, the process is carried out between 25 and 160°C wherein the de- mulsifier of the invention is contacted with the bituminous emulsion. -I-

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