Method of stripping paint in a molten salt bath

Details Method of stripping paint in a molten salt bath Method of stripping paint in a molten salt bath

1975-07-01

1977-01-04

Bashore, S. Leon

Cleaning and liquid contact with solids

Processes

Paints, varnishes, lacquers, or enamels, removal

252 99, 252103, 252DIG8, B08B 308

Patent

active

040010384

ABSTRACT:
Paint-coated objects are immersed in a molten salt bath to remove paint therefrom. The bath contains in weight percent: a) about 25-90% of alkali or alkaline earth caustic compounds; b) about 2-10% of an oxidizing agent selected from the group consisting of alkali and alkaline earth metal nitrates, nitrites, molybdates, metasilicates, and vanadates; c) about 5-40% of a surface scum reducing agent selected from the group consistng of alkali and alkaline earth metal sulfates and pyrophosphates; d) 0-60% of diluent salt selected from the group consisting of chloride, carbonate, and fluoride salts.

REFERENCES:
patent: 2359913 (1944-10-01), Hill
patent: 3000766 (1961-09-01), Wainer
patent: 3030239 (1962-04-01), Mekjean et al.
patent: 3790489 (1974-02-01), Shoemaker et al.
patent: 3899322 (1975-08-01), Yosim et al.

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