公开(公告)号：US11897790B2

公开(公告)日：2024-02-13

申请号：US17053259

申请日：2019-05-15

Applicant: ORGANO CORPORATION

Inventor： Kyohei Tsutano ,  Hitoshi Takada

IPC: C02F1/42 ,  B01J41/04 ,  B01J47/028 ,  B01J41/14 ,  B01J47/022 ,  C02F101/10 ,  C02F101/20 ,  C02F101/22 ,  C02F103/04 ,  C02F103/34

CPC classification number: C02F1/42 ,  B01J41/04 ,  B01J41/14 ,  B01J47/022 ,  B01J47/028 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2101/103 ,  C02F2101/108 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/22 ,  C02F2103/04 ,  C02F2103/346 ,  C02F2201/006

Abstract: Provided is a method for producing ultrapure water to supply, to a use point, ultrapure water obtained by treating raw material water for ultrapure water production in an ultrapure water production apparatus, wherein the raw material water for ultrapure water production contains at least one or more elements selected from B, As, Al, Ti, Cr, Fe, Cu, Zn, Sn, V, Ga, and Pb, and wherein an ion exchanger-filled module filled with at least a monolithic organic porous anion exchanger is installed in a treatment path of the ultrapure water production apparatus or in a transfer path from the ultrapure water production apparatus to the use point, and water to be treated is passed through the ion exchanger-filled module for treatment.

公开(公告)号：US12025603B2

公开(公告)日：2024-07-02

申请号：US17053254

申请日：2019-05-15

Applicant: ORGANO CORPORATION

Inventor： Kyohei Tsutano

IPC: G01N33/18 ,  B01J39/05 ,  B01J39/20 ,  B01J41/04 ,  B01J41/14 ,  G01N30/96

CPC classification number: G01N33/1813 ,  B01J39/05 ,  B01J39/20 ,  B01J41/04 ,  B01J41/14 ,  G01N30/96

Abstract: Provided is a method for analyzing the metal impurity content that includes passing water to be analyzed through a monolithic organic porous anion exchanger, thereby allowing the monolithic organic porous anion exchanger to capture metal impurities in the water to be analyzed; passing an eluent through the monolithic organic porous anion exchanger which has been allowed to capture metal impurities in the water to be analyzed, to collect an effluent, thereby obtaining a collected eluent containing metal impurities in the water to be analyzed eluted from the monolithic organic porous anion exchanger; and measuring the content of each metal impurity in the collected eluent.

公开(公告)号：US12275652B2

公开(公告)日：2025-04-15

申请号：US17285671

申请日：2019-10-17

Applicant: ORGANO CORPORATION

Inventor： Yukinari Yamashita ,  Daisaku Yano ,  Kyohei Tsutano

IPC: C02F1/00 ,  C02F1/42 ,  C02F101/10 ,  C02F103/04 ,  G01N1/20 ,  G01N33/18

Abstract: A water quality management method for managing the concentration of impurity ions contained in the water to be analyzed includes connecting the ion adsorption device in which the ion adsorbent and the accumulated flow rate meter are provided to the branch pipe, passing the water being analyzed from the branch pipe to the ion adsorbent for a predetermined period of time to the ion adsorption device and adsorbing ions contained in the water being analyzed an ion adsorbent sample. In the ion adsorption device, an accumulated flow rate meter is provided on the downstream side of the flow direction of the water being analyzed of the ion adsorbent.