Selective hydrogenation catalyst and processes therefor and therewith
CA 2418644 A1 · Owner: Cheung, Tin-Tack Peter · Inventors: Cheung, Tin-Tack Peter; Johnson, Marvin M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalyst composition comprising an inorganic support material a palladium , component, a silver component and a promotor component having the formula XYFn, wherein X is an alkaline metal, Y is an element selected from the group consisting an antimony, phosphorus, boron. Aluminum gallium, indium, thallium, and arsenic and n is an integer which makes YFn a monovalent anion. The above-described catalyst is employed as a catalyst in the selective hydrogenation of acetylene. The above-described catalyst is made by incorporating a palladium component, a silver component and a promoter , component into an inorganic support material.
Read the whole patent
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 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 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.