Method of vapor degreasing

Details Method of vapor degreasing Method of vapor degreasing

1981-05-07

1982-07-27

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 31, 134 40, 570121, 570122, B08B 500

Patent

active

043415679

ABSTRACT:
A contaminated article is subjected to vapor degreasing operations wherein the vapor degreasing solvent is a blend consisting essentially of methylene chloride and either 1,1,1-trichloroethane or trichloroethylene. Addition of methylene chloride to the solvent blend is found to stabilize the other component of the blend in the presence of contaminants encountered in the conventional vapor degreasing process; thus extending the normal life of the degreasing solvents.

REFERENCES:
patent: 1948045 (1934-02-01), Parkhurst
patent: 2070962 (1937-02-01), Reid
patent: 3274700 (1966-09-01), Maguire et al.
patent: 4046820 (1977-09-01), Goodner et al.
Chemical Abstracts, vol. 69, 1968, Abstract No. 78540v, p. 7363.

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