Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2011-03-29
2011-03-29
Kim, John (Department: 1777)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S638000, C210S643000
Reexamination Certificate
active
07914679
ABSTRACT:
A method for extracting at least one chemical or biological compound from a liquid phase including at least one functionalized ionic liquid, via a liquid extracting fluid that is miscible with the ionic liquid, and a microfluidic system implementing the method. The extraction method includes moving, on one surface of a microfluidic system, at least one microdrop of the liquid phase into an extraction solution that includes the extracting fluid and that is localized on the surface to obtain in output of the solution, under effect of an electric field, an extract moving away from the surface that is rich in extracting fluid and enriched in the at least one compound, and a raffinate moving on the surface that is rich in ionic liquid and deleted in the at least one compound.
REFERENCES:
patent: 1 466 894 (2004-10-01), None
patent: 96/12541 (1996-05-01), None
patent: 99/54730 (1999-10-01), None
Washizu, Masao, “Electrostatic Actuation of Liquid Droplets for Microreactor Applications”, IEEE Transactions on Industry Application, vol. 34, No. 4, pp. 732-737, 1998.
Delapierre Guillaume
Marchand Gilles
Sarrut Nicolas
Commissariat a l''Energie Atomique
Kim John
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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