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US 2008/0229882 A1Published application
Process for Purifying Sulphuric Acids
OwnerOlaf Halle, Wolfgang Podszun +3inventors
InventorsOlaf Halle, Wolfgang Podszun, Bruno Hees, Rheinhold Klipper, Jean-Marc Vesselle
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Abstract
The present invention relates to a process for purifying sulphuric acids, in particular metal-containing sulphuric acids, characterized in that monodisperse ion exchangers having chelating functional groups are used.
Claims10
A process for removing metal from a metal-containing sulfuric acid solution, comprising:
- contacting the sulfuric acid solution with a monodisperse chelating exchanger.
(canceled)
A process for removing metal from a metal-containing copper electrolyte containing sulfuric acid, comprising:
- contacting the metal-containing copper electrolyte with a monodisperse chelating exchanger.
Dependencies are inferred from the claim text.