Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2007-02-02
2009-12-29
Menon, Krishnan S (Department: 1797)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S640000, C210S321600, C202S200000, C203S010000, C062S624000, C062S655000
Reexamination Certificate
active
07638059
ABSTRACT:
The present invention relates to an oxygen isotope separation system and a method therefor. More specifically, the invention relates to a newly invented pressure-driven AGMD (Air Gap Membrane Distillation) system applied to a multi-stage membrane distillation cells which can produce an oxygen isotope effectively and economically, and a method therefor. The invention provides an oxygen isotope separation system including a number of Air Gap Membrane Distillation (AGMD) permeation cells connected in series to separate a feed into a product and a tail, wherein each of the AGMD cell is connected at a tail outlet with a reflux pump and at a product outlet, whereby the product from (i−1)th cell and the tail from (i+1)th cell are pumped as the feed into ith cell.
REFERENCES:
patent: 3340186 (1967-09-01), Weyl
patent: 3562116 (1971-02-01), Rodgers
patent: 4545862 (1985-10-01), Gore et al.
patent: 5074225 (1991-12-01), Petrie
patent: 5084181 (1992-01-01), Van Hook et al.
patent: 5204003 (1993-04-01), Cochran, Jr.
patent: 6321565 (2001-11-01), Kihara et al.
patent: 6716355 (2004-04-01), Hanemaaijer et al.
Chang Dae-Shik
Choi Hwa-Rim
Choi Yun-Young
Kim Jae-Woo
Korea Atomic Energy Research Institute
McDermott Will & Emery LLP
Menon Krishnan S
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