Process for the separation of hydrocarbons from a mixed feedstock
CA 1298234 C · Owner: Vidueira, Jose A. · Inventors: Vidueira, Jose A.; Forte, Paulino
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, In a solvent extraction/steam distillation process for the recovery of aromatic hydrocarbons the improvement comprising, (a) introducing high pressure steam into a steam ejector;, (b) passing the steam from step (a) to a first heat exchanger where it exchanges heat with cooler lean solvent coming from the bottom of the distillation column and is condensed; (c) returning the lean solvent from, step (b) to the bottom of the distillation column; (d) passing part of the condensate, from step (b) to a second heat exchanger where it exchanges heat with the warmer lean solvent coming from the bottom of the distillation column cooling, the lean solvent and vaporizing the condensate; and …
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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 March 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 2009.
- 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.