Method and apparatus for supercritical fluid extraction solution

Details Method and apparatus for supercritical fluid extraction solution Method and apparatus for supercritical fluid extraction solution

1990-02-21

1990-10-09

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By addition of extraneous agent, e.g., solvent, etc.

585835, 585866, 210634, 426490, C07C 710

Patent

active

049622757

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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