Solvent recovery from waste oils
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United States of America Patent
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Jul 4, 1995
Issued Date -
N/A
app pub date -
Jan 26, 1994
filing date -
Feb 5, 1993
priority date (Note) -
Expired
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Abstract
A distillation process for separating spent organic solvents such as trichloroethane or d-limonene from their contaminants such as oil is improved by the addition of a perfluorinated alkane or mixture of such alkanes to permit more efficient separation of the solvents from the oil.
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