Process for currentless separation of a nickel layer from object

Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...

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134 22R, 134 25R, 134 41, B08B 308

Patent

active

040253589

ABSTRACT:
A process for currentless separation of a nickel layer from nickel-coated objects of light metal. An acid bath is used consisting of nitric acid and hot water in which metallic copper is placed.

REFERENCES:
patent: 1994499 (1935-03-01), Boller
patent: 2978366 (1961-04-01), Harwig et al.
patent: 3367874 (1968-02-01), Haviland et al.
patent: 3856694 (1974-12-01), Becking
patent: 3878006 (1975-04-01), Rice

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