Cleaning and liquid contact with solids – Processes – Including regeneration – purification – recovery or separation...
Patent
1994-09-27
1998-12-01
Caldarola, Glen
Cleaning and liquid contact with solids
Processes
Including regeneration, purification, recovery or separation...
134 31, 134 36, 134902, B08B 500
Patent
active
RE0359750
ABSTRACT:
Components, especially of an electronic or electrical type, are cleaned by contact with a flammable liquid organic solvent (21), especially an alcohol. The surface of the solvent is covered with a non-flammable highly fluorinated compound vapor blanket (26), which vapor may also be used to transfer heat to the organic solvent. Both highly fluorinated compound and organic solvent are condensed and re-cycled.
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C. Reichardt, "Solvent Effects in Organic Chemistry", Verlag Chemie Weinheim, New york, 1979, pp. 40-43, 270-272.
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Ellis, B. N., Cleaning and Contamination of Electronic Components and Assemblies, Electrochemical Publicatiions Ltd., 1986, pp. 1-38.
Caldarola Glen
Rhone-Poulenc Chimie
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