Verfahren zur Entfernung von Eisen-II-Ionen aus sauren Verzinnung-Elektrolyten und Vorrichtung dafür

The invention relates to a method for separating ferrous ions from an iron-containing tinning electrolyte on the basis of methanesulfonic acid or phenolsulfonic acid, comprising the following steps: (a) providing a concentrated tin and iron-containing electrolyte containing 150 ml/ l or more methane...

Full description

Saved in:
Bibliographic Details
Main Authors DREISSIGACKER, UWE, HAHN, DIETER
Format Patent
LanguageGerman
Published 21.06.2001
Edition7
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
Online AccessGet full text

Cover

More Information
Summary:The invention relates to a method for separating ferrous ions from an iron-containing tinning electrolyte on the basis of methanesulfonic acid or phenolsulfonic acid, comprising the following steps: (a) providing a concentrated tin and iron-containing electrolyte containing 150 ml/ l or more methanesulfonic acid or phenolsulfonic acid (b) cooling the concentrated electrolyte to temperatures at which an insoluble Fe-salt precipitates (c) separating the insoluble precipitate to recover an electrolyte with a reduced iron concentration. and a recovery plant for tinning electrolytes on the basis of methanesulfonic acid or phenolsulfonic acid wherein this method is employed.
Bibliography:Application Number: DE19976004071T