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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.:

US 12258268 B1

PDFFull Text
Date of Patent:
Mar. 25, 2025

Filed:

Jan. 25, 2019

Method for purifying hydrogen peroxide

Applicant:

Oci Company Ltd., Seoul, KR;

Inventors:

Deokyun Kim, Gyeonggi-do, KR;

Hyejin Kim, Gyeonggi-do, KR;

Kyungyeol Kim, Gyeonggi-do, KR;

Yongil Kim, Gyeonggi-do, KR;

Assignee:

OCI COMPANY LTD., Seoul, KR;

Attorney:

HoustonHogle LLP

Primary Examiner:

Daniel C McCracken

Assistant Examiner:

Joshua Maxwell Speer

Int. Cl.
CPC ...
C01B 15/013 (2006.01); B01D 3/14 (2006.01); B01D 15/08 (2006.01); B01D 61/02 (2006.01); B01D 61/42 (2006.01); B01D 61/48 (2006.01); B01D 61/58 (2006.01); B08B 3/08 (2006.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
C01B 15/0135 (2013.01); B01D 3/145 (2013.01); B01D 15/08 (2013.01); B01D 61/025 (2013.01); B01D 61/42 (2013.01); B01D 61/48 (2013.01); B01D 61/58 (2013.01); B08B 3/08 (2013.01); B01D 2313/221 (2022.08); B01D 2313/40 (2013.01); B01D 2317/025 (2013.01); H01L 21/02041 (2013.01);
Abstract

The present invention relates to a method for purifying hydrogen peroxide, and more particularly, to a method including purifying a crude product of hydrogen peroxide using a primary purification system, and purifying a primarily purified hydrogen peroxide solution using a secondary purification system. One of the primary purification system and the secondary purification system includes an electrodeionization system, and the other one of the primary purification system and the secondary purification system includes at least one from among a distillation system, a resin system, a reverse osmosis system, and a combination system thereof.

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