Process for the oxidation of hydrogen sulphide to elemental sulphur and/or sulphur dioxide
CA 1232429 A · Owner: Shell Canada Limited · Inventors: Meeboer, Bob; Van Grinsven, Petrus F.A.; Groenendaal, Willem
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the oxidation of H2S to sulphur and/or SO2 by contacting an H2S-containing gas in the presence of free oxygen with a catalyst comprising at least one metal from Group 3b and/or 4b supported on a silica-containing carrier.
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
- Granted February 9, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 9, 2005.
- 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.