Oxidation of ferrous salt solutions
CA 1089382 A · Owner: General Mining And Finance Corporation Limited · Inventors: Livesey-Goldblatt, Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a process for the bacterial oxidation of ferrous salt solutions in the presence of oxygen and at an acid pH, She oxidation is carried out with the bacterial oxidising agent coated on the passage surfaces of a structure which is honeycombed with passages. The process conveniently is carried out continuously. The ferric salt obtained may be used for leaching a mineral, eg an ore or coal.
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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 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 11, 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.