Method of pre-concentrating heterogenous mineral mixtures
CA 1090311 A · Owner: Kommanditbolaget Fredrik Mogensen & Co. · Inventors: Mogensen, Fredrik K.
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 of processing ore of the type which includes the steps of grinding the ore, classification of the ore and concentration of the ore, the classification step following the step of grinding by preceding the step of concentration. According to the invention the step of classification, is of the type of a method wherein ore particles are generally simultaneously classified into fractions different from each other with respect to both size and density of the particles. The advance in the art is in that valuable, relatively heavy particles can be brought to the step of concentration in a relatively coarse state to thus reduce the cost of said step of grinding, …
Read the whole patent
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 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 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.