Title:
超純水を製造するための方法
Document Type and Number:
Japanese Patent JP7108622
Kind Code:
B2
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.
Inventors:
Ichiro Kano
Dima, Gabriella
Gross, Julian
Ratjäwil, Jan
Dima, Gabriella
Gross, Julian
Ratjäwil, Jan
Application Number:
JP2019543291A
Publication Date:
July 28, 2022
Filing Date:
February 12, 2018
Export Citation:
Assignee:
Merck Patent Gesellschaft mit beschraenkter Haftung
International Classes:
C02F1/42; B01D61/48; B01D61/58; B01J39/05; B01J39/07; B01J39/20; B01J41/05; B01J41/07; B01J41/14; B01J47/10; B01J47/127; B01J49/09; C02F1/28; C02F1/44; C02F1/469; C02F9/06; C02F9/08
Domestic Patent References:
| JP63156591A | ||||
| JP3151092A | ||||
| JP4078483A | ||||
| JP2008272713A | ||||
| JP2003251118A |
Foreign References:
| US4430226 |
Attorney, Agent or Firm:
Kiyokazu