Pressure leaching system and method
CA 2579351 C · Owner: Exergen Pty Ltd · Inventors: Tait, Peter James; Nicklin, Donald James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to pressure leaching systems/methods for leaching operations, e.g. of , nickel and other refractory ores. Problems are encountered in the areas of pressurization of , the slurry, heat recovery and pressure let-down arrangements. The system includes a reaction , zone for receiving slurry of feed ore/leaching solution the reaction zone , being disposed to the slurry source such that the slurry is resident under gravity thereby providing at least 30% , of the pressurization for leaching. The reaction zone includes piping extending downwardly , from the slurry source and having first and second heat recovery exchangers a , first reaction , vessel connected to 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
- Filed September 8, 2005 and granted September 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 8, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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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.