Production of formic acid from a nitrogenous base, carbon dioxide and hydrogen
CA 1311246 C · Owner: Lucy, Andrew R. · Inventors: Green, Michael J.; Lucy, Andrew R.; Smith, Stephen J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case 6909COG (2), ABSTRACT OF THE DISCLOSURE THE PRODUCTION OF FORMIC ACID FROM A NITROGENOUS BASE CARBON DIOXIDE AND HYDROGEN, A process for the production of formic acid comprises (a) in a first stage reacting together a nitrogenous base carbon dioxide and hydrogen, in the presence of a catalyst to produce a formate salt of the nitrogenous base, (b) in a second stage removing from the formate salt of the nitrogenous base and any low-boilers co-produced therewith the catalyst and recycling this to the first stage and in a subsequent, stage or stages converting the formate salt of the nitrogenous base to formic acid. The process is characterised by the fact that after production of the …
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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 December 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 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.