Beneficiation of values from ores with a heap leach process

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11203044
APP PUB NO 20180369869A1
SERIAL NO

15980462

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention relates to a process for recovering value metals from sulphide ore, including steps of crushing ore in a primary crusher (14) to a size of about 40 cm and less, passing the crushed ore through one or more of the following pre-beneficiation processes such as bulk sorting (16) and screening (20) followed by coarse floatation (46/50), or gravity separation or magnetic separation. A waste stream (54) from the pre-beneficiation process/es with a particle size greater than 100 μm is stacked in a heap (26) and subjected to a heap leach. This integrated process utilises the pre-beneficiation techniques best suited to the characteristics of a particular orebody; and during the pre-beneficiation simultaneously creating a low grade stream that yields significantly higher recoveries than achievable by normal heap leaching of low grade run of mine ore.

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Patent Owner(s)

Patent OwnerAddress
ANGLO AMERICAN TECHNICAL & SUSTAINABILITY SERVICES LTDLONDON EC1N 6RA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alexander, Daniel John St. Albans, GB 12 31
Filmer, Anthony Owen Kangaroo Point, AU 14 31

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