Method for obtaining high-purity carbon monoxide
CA 1238868 A · Owner: Kawasaki Steel Corporation · Inventors: Fujii, Tetsuya; Sakuraya, Toshikazu; Matsui, Shigeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Diesclosure:, A process for separating carbon monoxide from a feed gas comprising CO2, CO and less adsorbable component than CO through PSA by using at least two adsorption columns in two stage adsorption operation which comprises a first adsorption stage for removing CO2 from said feed gas and a second adsorption stage for separating CO from gaseous mixture withdrawn from the first adsorption stage: (1) the first adsorption stage comprising a pressure swing adsorption repeating adsorption and desorption and, (2) the second adsoprtion stage comprising: (i) pressurization by the first stage product gas (ii) adsorption, (iii) depressurization (iv) purge by product gas, (v) …
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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 July 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2005.
- 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.