Removal of copper containing incrustations from ferrous surfaces

Details Removal of copper containing incrustations from ferrous surfaces Removal of copper containing incrustations from ferrous surfaces

1978-09-14

1981-08-18

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 29, C23G 114

Patent

active

RE0307149

ABSTRACT:
The invention concerns a method of removing copper from a ferrous metal surface without excessive corrosion of the ferrous metal surface. In the method, the copper is dissolved with an aqueous alkaline solution containing a ferric chelate of an alkylene polyamine polyacetic acid chelating agent.

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