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:
Nov. 07, 2023
Filed:
Feb. 12, 2018
Applicant:
Merck Patent Gmbh, Darmstadt, DE;
Inventors:
Ichiro Kano, Montigny le Bretonneux, FR;
Gabriela Dima, Villebon sur Yvette, FR;
Julien Gross, Elancourt, FR;
Yann Ratieuville, Paris, FR;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/42 (2023.01); B01J 47/127 (2017.01); B01J 47/04 (2006.01); C02F 1/28 (2023.01); C02F 1/44 (2023.01); C02F 1/469 (2023.01); C02F 103/04 (2006.01);
U.S. Cl.
CPC ...
C02F 1/42 (2013.01); B01J 47/04 (2013.01); B01J 47/127 (2017.01); C02F 1/283 (2013.01); C02F 1/441 (2013.01); C02F 1/4695 (2013.01); C02F 2001/427 (2013.01); C02F 2103/04 (2013.01);
Abstract
The present invention relates to a method for producing purified water comprising a step (a) of passing water through a mixed bed ion exchanger comprising beads having a diameter between 0.2 and 0.7 mm and a step (b) of passing water through a fibrous ion-exchange material. The invention further relates to a module comprising the mixed bed ion exchange resin and the fibrous material and to a water treatment system for producing ultrapure water comprising the mixed bed ion exchange resin and the fibrous material.