Tailings solvent recovery unit feed control
CA 2867834 C · Owner: Fort Hills Energy L.P. · Inventors: Bartlett, Douglas Robert; Hindle, W. Scott; Ringstrom, John Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Techniques for treating a bitumen froth can include adding a paraffinic solvent to the bitumen froth to provide a diluted bitumen froth; separating the diluted bitumen froth into a diluted bitumen component comprising bitumen and a diluted tailings component; providing the diluted tailings component to a solvent recovery apparatus at a separating step temperature sufficient to avoid pressure moderation of the diluted tailings component and/or adding a dilution stream into the diluted tailings component to produce a tailings solvent recovery feed stream; and then separating feed stream into a recovered solvent component and a solvent recovered tailings component.
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
- Filed January 8, 2004 and granted March 8, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 8, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2026.
- 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.