Integrated process for the synthesis of propylene oxide
CA 2496954 A1 · Owner: Zehner, Peter · Inventors: Machhammer, Otto; Junicke, Henrik; Muller, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an integrated method for synthesising propylene oxide, said method comprising at least the following steps: (i) dehydrogenation of propane to obtain a partial stream T (0) which contains at , least propane, propene and hydrogen; (ii) separation of the partial stream T (0) to obtain at least one gaseous partial stream T (2) with a high hydrogen content and a partial stream T (1), which contains at least propene and propane; iii) hydrogen peroxide synthesis using the partial stream T (2) to , produce a partial stream T (4) with a high hydrogen peroxide content and a gaseous partial stream T (6); (iv) separation of the partial stream T (1) to obtain at least one …
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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 August 29, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 2025.
- 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.