Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1988-11-04
1989-10-24
Hruskoci, Peter
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75 3, 75101R, 210734, 423 27, C22B 1508
Patent
active
048759350
ABSTRACT:
An improved method for extracting copper from copper minerals by heap leaching with dilute sulfuric acid which comprises agglomerating the copper mineral fines prior to their being formed into an heap with an agglomerating agent comprising an anionic acrylamide polymer which contains at least 5 mole percent of carboxylate or sulfonate groups and has a molecular weight of least 100,000.
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Bonin Jacqueline L.
Gross Anthony E.
Cupoli Anthony L.
Epple Donald G.
Hruskoci Peter
Nalco Chemical Company
Premo John G.
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