The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2009
Filed:
Feb. 02, 2007
Jaewoo Kim, Daejeon, KR;
Hwa-rim Choi, Daejeon, KR;
Dae-shik Chang, Daejeon, KR;
Yun-young Choi, Kyungsangnam-do, KR;
JaeWoo Kim, Daejeon, KR;
Hwa-Rim Choi, Daejeon, KR;
Dae-Shik Chang, Daejeon, KR;
Yun-Young Choi, Kyungsangnam-do, KR;
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.