Method for regenerating a cupric chloride and/or ferric chloride

Details Method for regenerating a cupric chloride and/or ferric chloride Method for regenerating a cupric chloride and/or ferric chloride

1979-11-20

1981-05-26

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412975, 204130, C25F 314, C25F 702

Patent

active

042696780

ABSTRACT:
Method and apparatus for regenerating etching solutions obtained by chemily processing metallic surfaces, which solutions contain cupric chloride and/or ferric chloride. The apparatus includes between the anode and the cathode a diaphragm or an ion exchange membrane. The etching solution is passed through the electrolysis cell for anodic oxidation of the cuprous and/or ferrous ions obtained by etching of the metallic surface of a workpiece. An effective quantity of activated pulverous carbon particles is suspended at least in the anode compartment of the electrolysis cell, which cell is in communication with an etching chamber in such a way so as to allow circulating flow of solution.

REFERENCES:
patent: 3788915 (1974-01-01), Gulla
patent: 3974050 (1976-08-01), Divisek
patent: 4131523 (1978-12-01), Faul
patent: 4153531 (1979-05-01), Faul

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