Continuous preparation of pure metals by gaseous reduction
CA 1046290 A · Owner: Sliepcevich, Cedomir M. · Inventors: Neskora, Daniel R.; Sliepcevich, Cedomir M.; Brown, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for continuously recovering metal powders of high purity from aqueous solutions of the salts thereof which comprises conditioning the aqueous solution to attain a selected free ammonia to metal mole ratio in the general range of from 0.0:1 to about 6:1, depending upon the solution used and the metal to be reduced, then continuously passing the solution through a tubular reactor under steady state conditions in modified plug flow in which localized, limited backmixing occurs while continuously charging a reducing gas to the reactor in countercurrent flow with respect to the solution to agitate the solution as it passes through the reactor and to continuous-, ly reduce selected …
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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 January 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 16, 1996.
- 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.