Mobile incline kinetic evaporator
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United States of America Patent
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Jul 15, 2003
Grant Date -
Mar 13, 2003
app pub date -
Sep 10, 2001
filing date -
Sep 10, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus is disclosed for drying materials wet with one or more solvents, particularly hygroscopic materials and materials wet with a high boiling point (low vapor pressure) solvent that are sensitive to heat. Wet material is loaded into a chamber, which is then sealed and caused to oscillate back and forth. Vacuum is enlisted to provide rapid evaporation of solvent at a lower temperature than possible at standard atmospheric pressure. The material is oscillated until a sudden decrease in the residual pressure of the chamber, which indicates completion of the drying cycle. Because vacuum is applied to an oscillating chamber, a rotary vacuum seal is not required to accomplish drying in accordance with the practice of the instant invention.
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