Process and catalyst for the production of ethylene and acetic acid
CA 2052633 A1 · Owner: Bp Chemicals Limited · Inventors: Hallett, Christopher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case7609(2), ABSTRACT OF THE DISCLOSURE PROCESS AND CATALYST FOR THE PRODUCTION OF ETHYLENE AND ACETIC ACID A process and catalyst for the production of ethylene and/or acetic acid by oxidation of ethane and/or ethylene with a molecular oxygen-containing gas in the presence of a catalyst composition comprising the elements (A) tungsten, (B) vanadium, (C) rhenium and (D) at least one element selected from the group consisting of lithium, sodium potassium, rubidium and, cesium preferably lithium the elements being present in combination with oxygen.
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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 October 2, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 2, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2013.
- 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.