Device for fractionating mixtures
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United States of America Patent
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N/A
Issued Date -
Nov 28, 2002
app pub date -
Nov 30, 2001
filing date -
Jun 4, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a device for fractionating mixtures comprising separation elements which are series mounted and mounted in a closed loop. Said device is characterized in that the solvent used is a supercritical pressurized fluid, each of the separation elements is made of a membrane separation, it comprises means for injecting the solvent at a pressure which is greater than the critical pressure thereof and for maintaining the pressure in said loop at a value which is above critical pressure, and it further comprises means for injecting the diluent and for maintaining the pressure thereof at a value which is similar to the value of the pressure of the solvent (S) in each of the areas (I, II, III, IV).
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