Coating processes – Coating pavement or the earth
Patent
1996-10-11
1998-08-18
Dudash, Diana
Coating processes
Coating pavement or the earth
427299, 4273855, B05D 310, B05D 136, E01C 1124
Patent
active
057956200
ABSTRACT:
The leaching of metals from waste rock is retarded by coating the waste rock with a polymer that both adheres to the rock and chemically binds with the leaching metals. In some cases, the pH of the waste rock environment must be increased prior to polymer treatment with an addition of a neutralizing agent such as lime. Specifically, this neutralizing agent raises the pH of the waste rock environment thereby allowing the polymer to hold this neutralizing agent within the waste rock.
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Dudash Diana
Kennecott Greens Creek Mining Company
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