Magneto-Static Gold Ore Treatment
This machine exposes gold ore fragment to a rotating magneto-static field so that the ferromagnetic particles in it generate a stress into the surrounding silica matrix.
Neodymium permanent magnets are arrayed in the rotors to generate north and south poles that are periodically incident to the ore as they rotate about a center line above and below the vibrating plate.
All six ( or more ) rotors are driven by one motor via a chain and sprocket transmission.
The IP for this technology is for sale including all engineering CAD files and details.
The gold ore is transported on an inclined vibrating polypropylene plate from a hopper while being exposed to a highly collimated polar magnetic field from above and below as it moves towards the end of the process.
The ferro-magnetic particles inside the gold ore destabilize the ore silica matrix as the magnetic fields sweep through the ore silica matrix.
This generates new micro-fractures and fissures through which lixiviant can flow to dissolve more gold into solution in the heap leaching process of gold recovery.
The magnet holders rotate in phase between the vertical frames while the ore moves between them horizontally.
The periodic forces between the poles generate vibration at RPM and is attenuated by the vertical frames holding the bearings, sprockets and shafts.
Lab results shows a 10- 17% gold recovery improvement over baseline after cyanidation in a 14 day bottle roll done in Barrick Gold’s labs back in 2012.
Silver yield also increased from 3% to 9% in the samples tested. Barrick was looking for a 20% increase minimum.