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.

Date of Patent:
Oct. 14, 2014

Filed:

May. 21, 2009
Applicants:

Takeshi Izumi, Yokohama, JP;

Masahiro Hagiwara, Yokohama, JP;

Inventors:

Takeshi Izumi, Yokohama, JP;

Masahiro Hagiwara, Yokohama, JP;

Assignee:

Ebara Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21C 19/00 (2006.01); G21C 19/307 (2006.01); B01J 47/02 (2006.01); B01J 47/04 (2006.01); G21F 9/04 (2006.01); G21F 9/12 (2006.01); C02F 1/42 (2006.01); C02F 101/10 (2006.01); C02F 103/04 (2006.01); C02F 103/02 (2006.01);
U.S. Cl.
CPC ...
C02F 1/42 (2013.01); C02F 2001/422 (2013.01); G21C 19/307 (2013.01); B01J 47/028 (2013.01); B01J 47/04 (2013.01); C02F 2001/427 (2013.01); G21F 9/04 (2013.01); C02F 2101/101 (2013.01); C02F 2001/425 (2013.01); G21F 9/12 (2013.01); C02F 2103/04 (2013.01); C02F 2103/023 (2013.01);
Abstract

A method and an apparatus for performing a condensate demineralization treatment within a condensate demineralization apparatus of a nuclear power plant, which are capable of producing a high-purity treated water containing a low concentration of sulfate ions derived from the TOC eluted from a cation exchange resin. A condensate demineralization method for performing a demineralization treatment of a condensate from a nuclear power plant using an ion exchange resin, wherein the demineralization treatment of the condensate is performed by bringing the condensate into contact with an ion exchange resin bed that includes a mixed bed prepared by uniformly mixing a strongly acidic gel-type cation exchange resin and a strongly basic type 1 porous anion exchange resin having a cross-linking within a range from 1% to 4%.


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