Vacuum and infra-red radiation solvent evaporation
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United States of America Patent
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-
Dec 5, 1995
Grant Date -
N/A
app pub date -
Feb 14, 1994
filing date -
Feb 14, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary evaporator is described utilizing a magnetically driven fluorocarbon cylinder, operating within a solvent container, to create a thin solvent film for rapid evaporation without the usual requirement for rotating the entire solvent container assembly. Infra-red heating is employed for efficient evaporation rates. Solvent heating is controlled during evaporation by a single temperature probe, turning the infra-red heater on and off on demand of the probe. Over heating of the product is prevented by maintaining a solvent residue at or near the conclusion of an evaporation.
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