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US 6,884,280 B2Granted
Heat transfer in heap leaching of sulphide ores
AssigneeBilliton SA Limited
InventorsJohn de Klerk Batty, Alan Norton
Life of this patent
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Abstract
A method of leaching sulphide mineral concentrates wherein heat generated by bioleaching of sulphide mineral concentrates in at least one reactor is transferred into a heap in which bio-assisted leaching takes place.
Claims22
A method of leaching a sulphide mineral comprising:
- a. bioleaching a slurry of a sulphide mineral concentrate in at least one reactor;
- b. extracting heat from the slurry during the bioleaching;
- c. transferring the extracted heat into a heap in which bio-assisted leaching of a sulphide ore takes place.
Dependencies are inferred from the claim text.