Process to improve the demulsification of bitumen in pond oil
CA 1318876 C · Owner: Fripiat, Jose J. · Inventors: Sethi, Amar J.; Fripiat, Jose J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the recovery of bitumen from pond oil by breaking the aqueous pond oil emulsion with an aluminum polyhydroxy polymer having a hydrolysis ratio (OH/Al) of from about 2 to about 2.2 or a combination of said polymer with a demulsifier, allowing the treated emulsion to stand until water released from the emulsion is coalesced and separating the bitumen.
Read the whole patent
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 June 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 2010.
- 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.