Anionic acrylamide polymers as copper ore agglomeration aids

Details Anionic acrylamide polymers as copper ore agglomeration aids Anionic acrylamide polymers as copper ore agglomeration aids

C - Chemistry, Metallurgy

22

B

53/1

C22B 3/08 (2006.01) C22B 1/16 (2006.01) C22B 1/244 (2006.01) C22B 15/00 (2006.01)

Patent

CA 1338772

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 a heap with an agglomerating agent comprising an anionic polymer of acrylamide or methacrylamide which con- tains at least 5 mole percent of carboxylate or sulfonate groups and has a molecular weight of at least 100,000.

612467

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