Procedure for copper chloride aqueous electrolysis
CA 1265092 C · Owner: Suarez-Infanzon, Luis Alonso · Inventors: Suarez-Infanzon, Luis Alonso; Nogueira, Eduardo Diaz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The process for extraction of copper metal from copper sulfide ore comprises leaching copper sulfide ore with ferrous chloride solution, to produce copper chloride, and electrolysis of the copper chloride using adjacent electrolytic cells separated by a semi permeable membrane. The leach liquor containing copper chloride is introduced into the cathode cell containing an aqueous electrolyte, and brine is introduced into the anode cell. The semi-permeable membrane is permeable to monovalent cations, permitting the flow of sodium ions or other monovalent cations from the anode to the cathode during electrolysis. Copper metal is withdrawn from the cathode and chlorine gas is removed from the …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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.