Capenhurst electrolytic etchant regeneration cell

Fig. 9.13 Examples of the Capenhurst electrolytic etchant regeneration cell. Two cell units being assembled an etchant machine is shown in the foreground. (Courtesy Electricity Council Research Centre and Finishing Services Ltd.)...

CEER process — (Capenhurst electrolytic etchant regeneration process) Electrochemical process for continuous copper removal from printed circuit board etching solutions employing either cupric chloride or ammoniacal etchant. In a cell divided by a cation exchange membrane the etching process is essentially reversed. In case of the cupric chloride etchant the etchant solution is pumped to the anode, the processes are at the... 

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