Cold cleaning process

Details Cold cleaning process Cold cleaning process

1995-01-26

1996-05-07

El-Arini, Zeinab

Cleaning and liquid contact with solids

Processes

Oils, grease, tar, or wax removal, by dissolving

134 42, 252162, 252170, 252171, 252364, 8142, B08B 308, C11D 722, C11D 750, C23G 502

Patent

active

055142214

ABSTRACT:
Evaporative cold cleaning of objects wherein the object is contacted in an open environment with a nonazeotropic solvent blend containing an HCFC, HFC or PFC component having no flash point (such as 141b), a higher boiling nonflammable chlorinated solvent (such as perchloroethylene), and a moderately flammable, intermediate boiling, oxygenated organic solvent (such as n-butanol).

REFERENCES:
patent: 3671442 (1972-06-01), Schofield et al.
patent: 3984364 (1976-10-01), Taub
patent: 4378968 (1983-04-01), Peignier et al.
patent: 4836947 (1989-06-01), Lund et al.
patent: 4842764 (1989-06-01), Lund et al.
patent: 5085797 (1992-02-01), Swan et al.
patent: 5126067 (1992-06-01), Swan et al.
patent: 5137651 (1992-08-01), Stachura et al.
patent: 5395548 (1995-03-01), Pfahl, Jr. et al.

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