Hydrogenation of benzene to cyclohexane
CA 2385852 A1 · Owner: Gildert, Gary G. · Inventors: Gildert, Gary G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the production of cyclohexane by the hydrogenation of benzene is provided wherein the reactor is operated at a pressure wherein the reaction mixture is boiling under low hydrogen partial pressure in the range of about 0.1 PSIA to less than 200 PSIA at 0 to 350 PSIA overhead pressure. The catalyst is provided as a catalytic distillation structure (12) such that the reaction is concurrently occurring with a distillation. The benzene is fed at a point above the bed (1) and the hydrogen is fed below the bed (2). All of the overheads may be returned as reflux to provide cooling within the catalyst bed.
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 August 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 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.