Adsorptive separation process for recovery of two paraffin products
CA 2424464 A1 · Owner: Sohn, Stephen Wayne · Inventors: Rekoske, James Edward; Sohn, Stephen Wayne; Kulprathipanja, Santi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Two separate paraffinic hydrocarbon products such as normal and monomethyl , branched C10 - C23 paraffins are recovered from a mixture comprising the product hydrocarbons and many other hydrocarbons in a process employing two adsorptive separation zones in series. A single desorbent comprising a light paraffin is used in both zones and recovered in a single system thus reducing , capital and operating costs. The recovered paraffinic hydrocarbons may then be dehydrogenated and reacted with benzene to form alkylaromatic hydrocarbons useful as a detergent precursor.
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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 September 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2023.
- 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.