Process for distillation of multicomponent fluid and production of an argon-enriched stream from a cryogenic air separation process
CA 2327751 C · Owner: Herron, Donn Michael · Inventors: Agrawal, Rakesh; Herron, Donn Michael; Choe, Jung Soo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process separates a multicomponent feed by distillation into at least one stream, enriched in the most volatile component one stream enriched in the least , volatile component, and one stream enriched in a component of intermediate volatility. In one, embodiment, the process produces an argon-enriched stream from a cryogenic air separation process. The distillation system includes at least one distillation column that, produces a nitrogen-enriched stream from the top of the column an oxygen , product stream, from the bottom of the column and an argon-enriched stream from a partitioned section. The geometry of the partitioned section minimizes vapor and liquid maldistribution, 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
- Filed December 7, 2000 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 2022.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.