Method and apparatus for changing solvent composition in a solvent recovery system of a dewaxing apparatus
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United States of America Patent
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Mar 18, 1997
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N/A
app pub date -
Jun 7, 1995
filing date -
Aug 27, 1993
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Abstract
An apparatus for changing the solvent composition in a solvent recovery system of a dewaxing apparatus, depending on the type of stock oil, by introducing a part of dry solvent into a wet solvent tank to thereby increase or decrease a concentration of MEK in the wet solvent used as a primary solvent for initially mixing with the stock oil.
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