Drainage aid for metal heap leaching
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United States of America Patent
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N/A
Issued Date -
Oct 16, 2003
app pub date -
Apr 11, 2002
filing date -
Apr 11, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Methods for increasing drainage or percolation of a lixiviant solution through mineral ore in a heap mining operation. A drainage aid comprising ethoxylated aliphatic primary alcohols and mixtures thereof is dripped, sprayed or otherwise brought into contact with the heaped metal ore aggregate and thereby improves percolation or drainage of the lixiviant through the heaped metal ore.
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