Hydrogenation catalyst
CA 1304069 C · Owner: Verzijl, Dirk · Inventors: Verzijl, Dirk; Oudejans, Johannes C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a process for the preparation of a hydrogenation catalyst which comprises alumina and an active metal (M) having an atomic number (Z) from 27 to 29 in which, an ammoniacal metal ion solution is combined with an aqueous solution of an aluminium compound, ammonia is removed by keeping the combined solutions at or near the boiling point for 20 to 180 minutes, thereby precipitating inter alia, M6Al2(OH)16CO3.4H2O, and the precipitate is collected dried and, reduced with hydrogen.
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 June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 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.