Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
Patent
1975-10-01
1977-05-24
Bashore, S. Leon
Cleaning and liquid contact with solids
Processes
For metallic, siliceous, or calcareous basework, including...
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
Audi NSU Auto Union Aktiengesellschaft
Bashore S. Leon
Caroff Marc L.
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