B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
196/19, 196/206,
B01D 17/04 (2006.01) C10G 1/00 (2006.01) C10G 1/04 (2006.01) C10G 33/04 (2006.01)
Patent
CA 1153717
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 polyols of 4 and greater functionality containing discrete blocks of ethylene oxide and propylene oxide wherein the ethylene oxide content of the polyol is greater than about 50% but less than about 95%. The molecular weight of these polyols is greater than about 12,000. 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.
378001
Laberge Colin L.
Mccoy David R.
Smart & Biggar
Texaco Canada Inc.
Texaco Development Corporation
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