heap leaching

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heap leaching [′hēp ‚lēch·iŋ]

(metallurgy)

A process used for the recovery of copper from weathered ore and material from mine dumps; material is laid to a thickness of 20 feet (6 meters) in alternately fine and coarse beds and treated with water at intervals during which oxidation occurs; liquor that runs off is treated with scrap iron to precipitate copper.

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No references found			5 million Canadian Mountain Minerals exploration programme in the Yemen has included extensive geochemical work, which already supports the theory that the concession could host Nevada-style epithermal and Archean-type gold deposits amenable to heap leaching. Going for gold by Ross, Priscilla / The Middle East 82 grammes of gold per tonne, containing 286,500 ounces, which are amenable to heap leaching. New Ghana gold mine goes ahead at Ayanfuri by African Business These relatively high soluble copper values indicate the large chalcocite copper blanket mineralization in the Hill Copper Leach Project appears amenable to conventional, low-cost acid heap leaching technology and processing methods. Aurelio Announces Highly Encouraging Metallurgical Test Results for ... by Business Wire			Health Health and Human Services, United States Department of Health Care for Children and Adolescents Health Care for Mothers and Children health centre Health Education health farm health insurance health maintenance organization health physics Health Resorts health visitor Health, Education, and Welfare, United States Department of health-care proxy Health-Resort Science healthcare IT Healy, George Healy, George Peter Alexander Healy, James Augustine Healy, Patrick F. Healy, T M Healy, Timothy Michael Heaney Heaney, Seamus heap heap leaching heap roasting heap sampling heaped capacity Heard Heard County Heard Island Hearing Hearing Aid hearing dog Hearing, Hardness of Hearing, Organs of Hearn, Lafcadio Hearne, Samuel hearsay hearse Hearst Hearst Corporation Hearst San Simeon State Historical Monument Hearst, George Hearst, Patricia Hearst, William Randolph Heart heart and dart heart attack Heart Block			Healy, T M Healy, Timothy Michael Healy-Rasbash-Yang Heam Heam Heamatite Heamatite Heamoglobin Heamoglobin Heamoglobin HEAN Heaney Heaney Heaney, Seamus Heaney, Seamus (Justin) Heaney, Seamus (Justin) HEANO HEAO HEAO 1 heap heap heap heap heap Heap (programming) Heap Analysis and Verification Heap Bounded Assembly Language heap coals of fire on head heap coals of fire on head heap coals of fire on head heap leaching Heap management Heap management Heap management heap of Heap of Crap heap on heap on heap on heap on Heap or B-Tree heap Pelion on Ossa heap Pelion on Ossa heap roasting heap sampling heap sight Heap space Heap space Heap space heap up heap up heap upon heap upon heap upon heap with Heap-based memory allocation HEAPBC heaped heaped heaped heaped

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