Fibrous electrolytic bed for the recovery of mercury and other heavy metal ions
CA 1089797 A · Owner: Basf Wyandotte Corporation · Inventors: Balko, Edward N.; Argade, Shyam D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Small amounts of mercury are removed from an aqueous electrolyte solution containing sodium chloride by recycling, the solution through a chamber at a temperature of about 5° to about 98°C while subjecting the solution to the action of a direct current maintained between an anode and a cathode bed both located above the lower portion of the chamber the cathode, bed being below the anode and comprised of conductive fibers having a diameter of about 40 to about 1,000 microns and extending throughout a complete cross-section of the chamber. Dissolved mercury is electrodeposited from the solution in the cathode bed and drops therefrom by gravitational force. The mercury is collected in 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 November 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 1997.
- 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.