Process for sulfurization of hydrogenation catalysts
CA 1095875 A · Owner: Idemitsu Kosan Company Limited · Inventors: Naniwa, Kiyoaki; Akatsuka, Hisashi; Iemura, Nobukazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
No.I-151, ABSTRACT OF THE DISCLOSURE, A process for activating a hydrogenation catalyst packed in a hydrogenation apparatus including multiple reaction stages by sulfurization comprising sulfurizing the hydrogenation catalyst in each reaction stage with a sulfur-containing hydrocarbon oil and a hydrogen-rich gas containing hydrogen sulfide in an amount of below 1,000 ppm (by volume) successively in the order of from the final reaction stage to the first reaction stage.
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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 February 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 17, 1998.
- 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.