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:
May. 25, 2021
Filed:
Feb. 09, 2017
Fujifilm Manufacturing Europe B.v., Tilburg, NL;
Vinodnarain Bhikhi, Tilburg, NL;
Jacko Hessing, Tilburg, NL;
Fujifilm Manufacturing Europe B.V., Tilburg, NL;
Abstract
A membrane stack comprising the following components: (a) a first ion diluting compartment (D); (b) a second ion diluting compartment (D); (c) a first ion concentrating compartment (C); (d) a second ion concentrating compartment (C); and (e) a membrane wall (CEM, mAEM, mCEM, AEM, CEM) between each compartment and on the outside of the first and last compartment of the stack; wherein: (i) each membrane wall comprises a cation exchange membrane (CEM, mCEM, CEM) or an anion exchange membrane (mAEM, AEM) and the order of the cation and anion exchange membranes alternates from each wall to the next; (ii) the membrane walls (mAEM, mCEM) on each side of compartment (a) both have a higher monovalent ion selectivity than the corresponding membrane walls (AEM, CEM) on each side of compartment (b); and (iii) the stack further comprises a means for communicating fluid between compartments (a) and (b).