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Title: Method for the reprocessing of cell liquor from diaphragm cell electrolysis plants

Abstract: A method for the reprocessing of cell liquor from diaphragm cell electrolysis plants that operate on potassium chloride brine. The cell liquor is contacted with an SO.sub.2 -bearing gas, and the effluent solution is oxidized with an oxygen-bearing gas, then a definite quantity of KCl is added to said oxidized solution, and this solution is subjected to a filtration and precipitation step, and finally it is then recycled as make-up brine to the electrolysis cell plant.


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Inventors: Von Semel, Georg (Dortmund, DT)
Schibilla, Eduard (Dortmund-Solde, DT)
Strewe, Wolfgang (Dortmund, DT)

Application Number: 560707
Filing Date: 1975-03-21
Publication_date: 1976-03-02
Assignee: Friedrich Uhde GmbH (Dortmund, DT)
Primary Class(es): 205/512 423/195, 423/199, 423/551
Other Classes:
US Patent Ref:
3533748Oct, 1970Finfer et al.423/551.
3873672Mar, 1975Nishiba et al.423/551.

Other Refs:
Primary Examiner: Andrews, R. L.
Assistant Examiner:
Attorney: Fraser; Malcolm W.