Process for preparing hydrotreating catalysts from hydrogels
CA 1304348 C · Owner: Shell Canada Limited · Inventors: Kemp, Richard Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for preparing highly active hydrotreating catalysts prepared by incorporating a metal selected from the group consisting of molybdenum, tungsten and mixtures thereof a metals solution, containing cobalt or nickel and a stabilized amount of phosphorus into a phosphated alumina hydrogel support. The final calcined catalysts have surface areas greater than 300 m2/g crush strengths, greater than 70 N and more than about 80% of their pore volume in pores having diameters less than 7 nm. T1/K7533.txt
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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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.