Regeneration process for poisoned claus alumina catalyst, including naoh activation
CA 1184169 A · Owner: Alberta Research Council · Inventors: George, Zacheria M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
REGENERATION PROCESS FOR POISONED CLAUS ALUMINA CATALYST INCLUDING NaOH ACTIVATION", ABSTRACT OF THE DISCLOSURE Poisoned catalyst is regenerated by first subjecting it to an oxidative burn-off and then soaking it in a base preferably NaOH. The dried product is comparable in Claus activity to fresh catalyst.
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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
- Granted March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.