Method for cleaning various surfaces of a single article

Details Method for cleaning various surfaces of a single article Method for cleaning various surfaces of a single article

1983-04-01

1984-09-18

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Using sequentially applied treating agents

134 28, 134 29, B08B 704

Patent

active

044722052

ABSTRACT:
A first high concentration acidic solution is applied over a dry and generally highly contaminated surface. A second less concentrated acidic solution is applied to at least the remaining surfaces. The second acidic solution concentrations are selected to leave protective coatings, such as wax, intact on the cleaned surface. The first and second acidic solutions are rinsed from the surfaces with alkaline solutions.

REFERENCES:
patent: 307190 (1884-10-01), Green
patent: 2359088 (1944-09-01), Croft
patent: 2801941 (1957-08-01), Johnson
patent: 4002489 (1977-01-01), Hedqvist et al.

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