Method for activating passivated iron
CA 2385597 A1 · Owner: Bassler, Peter · Inventors: Ansmann, Andreas; Ohlbach, Frank; Melder, Johann-Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for activating passivated iron with hydrogen at an increased temperature and under an increased pressure whereby said iron , can be used as a catalytically active component after activation. The inventive method is characterised in that the activation is carried out in the presence of a nitrile. The invention also relates to the use of nitriles in such methods, iron obtainable according to said method the use of iron in , heterogeneous catalysts and a method for hydrogenation whereby such catalysts , are used.
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
- Filed September 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 2022.
- 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.