Selectively removing iron ions from salt solns. - by solvent extracting to oxidise iron ions

Selectively removing iron ions from Zn- and Fe-contg. salt and/or sulphuric solns. is carried out using solvent extraction. The novelty is that Fe2+ is oxidised to Fe3+ in the soln. Pref. the pH of the soln. can be adjusted to absorb Fe3+. Harmful tensides are removed in used acids for being used in...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	OLBRICH REINHARD, NEUGEBAUER ALFRED. DR, KOEHLEIN JOHANNES
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY
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