B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
196/19, 196/206,
B01D 17/04 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C10G 1/00 (2006.01) C10G 1/04 (2006.01) C10G 33/04 (2006.01)
Patent
CA 1152919
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 hydrophilic poly- urethanes wherein the ethylene oxide content of the polyl portion of the polyurethane is greater than about 70% by weight. To resolve the bituminous petroleum emulsions, the process is carried out between 25 and 120°C wherein the demulsifier of the invention is contacted with the bituminous emulsion.
377993
Gipson Robert M.
Laberge Colin L.
Mccoy David R.
Young Kitchener B.
Smart & Biggar
Texaco Canada Inc.
Texaco Development Corporation
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