percolation leaching

percolation leaching

[pər·kə′lā·shən ‚lēch·iŋ]
(mining engineering)
The selective removal of a mineral by causing a suitable solvent to seep into and through a mass or pile of material containing the desired soluble mineral.
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Deep percolation leaching from rain between irrigation seasons (i.
A test programme preceding the design of a simple heap leaching project with several distinct rock types typically will include 250 to 500 laboratory "bottle roll" tests and 25 to 100 large column percolation leaching tests.
The need for excellent oxygenation in the percolation leaching of a gold ore was deeply impressed on the author over 45 years ago when he worked in the Nos.
Because "there were no percolation, fines migration, or solution channeling problems encountered during percolation leaching of the 75% L.