Ion exchanger for winning metals of value
OwnerDuilio Rossoni, Reinhold Klippper +3inventors
InventorsDuilio Rossoni, Reinhold Klippper, Rudolf Wagner, Wolfgang Wambach, Michael Schelhaas
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Abstract
The present invention relates to the use of monodisperse, macroporous anion exchangers of type I or type II in hydrometallurgical processes for winning metals of value.
Claims9
A method of using monodisperse, macroporous anion exchangers of type I or type II for winning metals of value, wherein type I denotes resins whose adsorbing sites are quaternary ammonium groups which are substituted by alkyl groups, preferably C1-C4-alkyl groups, and wherein type II denotes resins in which the quaternary ammonium groups have not only alkyl group(s) but also at least one hydroxyalkyl group, preferably a hydroxy-C1-C4-alkyl group.
A process for winning metals of value by the resin in pulp process or the in-situ leaching process or from water containing metals of value, wherein monodisperse, macroporous anion exchangers of type I or type II, preferably of type II, are used, and type I denotes resins whose adsorbing sites are quaternary ammonium groups which are substituted by alkyl groups, preferably C1-C4-alkyl groups, and type II denotes resins in which the quaternary ammonium groups have not only alkyl group(s) but also at least one hydroxyalkyl group, preferably a hydroxy-C1-C4-alkyl group.
Dependencies are inferred from the claim text.