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...Solvent extraction of copper from high tenor pressure leach solutions using new modified aldoximes k c sole anglo american research laboratories pty ltd p o box crown mines south africa ksole angloresearch com a m feather cognis corporation honeydew abstract modern chalcopyrite leaching processes produce substantially higher and acid concentrations than traditional heap operations the purification such liquors presents interesting challenges for chemistry process integration this unit operation into overall flowsheet lix n lv two extractants recently commercialised by feature an aldoxime functionality that is well suited to processing low ph while incorporation novel modifiers patent pending gives these lower viscosity density currently available nevertheless exhibit similar cu fe selectivity highly acorga significant advantage offered they can be used at as vol in contrast conventional become impractical much above loaded solutiond containing g l advance ratios rather values have prev...