Regeneration process for poisoned claus alumina catalyst
CA 1097317 A · Owner: George, Zacheria M. · 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" ABSTRACT OF THE DISCLOSURE, Poisoned alumina catalyst is removed from the reactor and washed with hot water to remove soluble sulfates. The carbon on the washed catalyst is then burned off and the product may again be washed to remove further sulfates formed during the oxidative burn-off. The activity of the catalyst thus regenerated is comparable to that of fresh alumina catalyst employed for sulfur recovery by the modified Claus process.
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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 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 1998.
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Timeline
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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.