Method and apparatus for supercritical fluid extraction solution separation
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United States of America Patent
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Oct 9, 1990
Grant Date -
N/A
app pub date -
Feb 21, 1990
filing date -
Feb 21, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for the separation of a desired product from a supritical fluid extraction solution employ a restrictor nozzle, a coarse-pore sintered-glass enclosure member and a collecting means for collecting an oil suspension of the desired product. The supercritical fluid extraction solution is decompressed by passing through the restrictor nozzle. The resulting decompressed fluid stream is directed at the enclosure member which is saturated with an oil in which the desired product is soluble. Solutes including the desired product are dissolved in the oil, and the oil is collected. The method and apparatus are particularly suitable for use in separating .beta.-carotene from a carbon dioxide solvent.
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