Method and apparatus for controlling metal separation
CA 2531772 C · Owner: Outokumpu Technology Oyj · Inventors: Natunen, Harri; Talonen, Panu; Oinonen, Yrjo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method and apparatus for controlling a continuous metal removal in conjunction with a zinc preparation process in which the , metal removal is performed in one or more reactors (11a-c) in conjunction , with the reactor, the redox potential (16a-c) and the acidity and/or basicity are measured, and based on the measurement results the process variables (17a-, c) of the metal removal are adjusted towards the desired direction. According to the invention, the redox potential measurements (16a-c) are performed from the sludge produced in the reactor in conjunction with the outlet pipe of the reactor outside the reactor, and the measuring instrument (16a-c) is …
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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 July 15, 2004 and granted January 27, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 15, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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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.