Heap leach

Heap leach

A method of extracting uranium from ore using a leaching solution. Small ore pieces are placed in a heap on an impervious material (plastic, clay, asphalt) with perforated pipes under the heap. Acidic solution is then sprayed over the ore, dissolving the uranium. The solution in the pipes is collected and transferred to an ion-exchange system for concentration of the uranium.

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Part of Speech: noun
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Industry/Domain: Energy
Category: Nuclear energy
Company: U.S. NRC
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Related terms

heap leach

Energy; Nuclear energy

A method of extracting uranium from ore using a leaching solution. Small ore pieces are placed in a heap on an impervious material (plastic, clay, asphalt) with perforated pipes ...

heap leaching

Mining; General mining

The process of stacking ore in a heap on an impermeable pad and percolating through the ore a solution containing a leaching agent such as cyanide. The gold which leaches from the ...

heap leaching

Energy; Energy trade

A process whereby valuable metals (usually gold and silver) are leached from a heap (or pad) of crushed ore by leaching solutions percolating down through the heap and are ...

heap leaching

Mining; General mining; Mineral mining

A process used for the recovery of copper, uranium, and precious metals from weathered low-grade ore. The crushed material is laid on a slightly sloping, impervious pad and ...

heap leach solutions

Energy; Coal; Natural gas; Petrol

The separation, or dissolving-out from mined rock of the soluble uranium constituents by the natural action of percolating a prepared chemical solution through mounded (heaped) ...