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Conference Proceedings

World Gold '91, Cairns Qld, April 1991

Conference Proceedings

World Gold '91, Cairns Qld, April 1991

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The Ashanti (Ghana) Heap Leach - Treatment of a Decomposed Schist in a Tropical Environment

Mining and treatment of gold ore in the Ashanti region at Obuasi, Ghana has been continuous for more than 100 years. Earlier production from this world class deposit can be traced far into the history of West Africa's gold trade. As part of a general development and expansion program, Ashanti Goldfields Corporation (Ghana) recently undertook a program to heap leach oxidized near surface ore. Kappes, Cassiday & Associates was given a major role in the design, equipment supply, installation and start-up management of the 3000 tonne/day heap leach. Unusual conditions included a high annual rainfall and an ore which could be characterized as a soft, decomposed, water saturated schist. Production began in March 1990. Startup problems and their solutions are discussed.
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  • The Ashanti (Ghana) Heap Leach - Treatment of a Decomposed Schist in a Tropical Environment
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  • Published: 1990
  • PDF Size: 0.242 Mb.
  • Unique ID: P199102053

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