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...
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Main Authors | , |
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Format | Patent |
Language | German |
Published |
21.06.2001
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: DE19976004071T |