Demulsification of petroleum emulsions
CA 1094911 A · Owner: Texaco Canada Inc. · Inventors: Patel, Mahendra S.; Sacuta, Aleksy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DEMULSIFICATION OF PETROLEUM, EMULSIONS (D#73,500-RCA-31-F), ABSTRACT OF THE DISCLOSURE A process for recovering oil from either waterbituminous petroleum emulsions or from crude petroleum emulsions having a pH of 10 or less by adding thereto an optimum amount of non-ionic, water soluble polyethylene oxide resins at a pH of 10 or less, and separating the oil from water. To resolve bituminous petroleum emulsions the process is carried out at between 150°F and 210°F and a diluent is added to reduce the petroleum viscosity. The minimum effective concentration of the resins used decreases as their molecular weight increases. In a modification of the process an effective, amount of an alkaline …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 3, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.