Cleaning and liquid contact with solids – Processes – Miscellaneous
Patent
1991-08-29
1993-05-04
Garvin, Patrick P.
Cleaning and liquid contact with solids
Processes
Miscellaneous
134 40, 252542, 252153, 252170, C23G 5024, C23G 5032, C23G 5036
Patent
active
052078388
ABSTRACT:
A solvent composition for displacing greasy and oily contaminants as well as water and/or aqueous residue from metallic surfaces, especially surfaces of radioactive materials so that such surfaces can be wiped clean of the displaced contaminants, water and/or aqueous residue. The solvent composition consists essentially of a blend of nonpolar aliphatic hydrocarbon solvent having a minimum flash point of about 140.degree. F. and 2 to 25 volume percent of a polar solvent having a flash point sufficiently high so as to provide the solvent composition with a minimum flash point of at least 140.degree. F. The solvent composition is nonhazardous so that when it is used to clean the surfaces of radioactive materials the waste in the form of paper or cloth wipes, lab coats and the like used in the cleaning operation is not considered to be mixed waste composed of a hazardous solvent and a radioactive material.
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Googin John M.
Simandl Ronald F.
Thompson Lisa M.
Adams Harold W.
Garvin Patrick P.
Holsopple Herman L.
Martin Marietta Energy Systems Inc.
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