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. 15, 2019

Filed:

Dec. 10, 2015
Applicant:

Tanaka Kikinzoku Kogyo K.k., Tokyo, JP;

Inventors:

Hiroyasu Sato, Kanagawa, JP;

Jun Watanabe, Kanagawa, JP;

Matsunori Sawada, Kanagawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/652 (2006.01); B01J 23/68 (2006.01); B01J 37/02 (2006.01); B01J 37/06 (2006.01); B01J 37/34 (2006.01); C02F 1/70 (2006.01); C02F 1/72 (2006.01); C25D 3/48 (2006.01); C25D 3/50 (2006.01); C25D 3/54 (2006.01); C25D 3/56 (2006.01); C25D 5/10 (2006.01); C25D 5/38 (2006.01); C02F 101/10 (2006.01); C02F 103/34 (2006.01);
U.S. Cl.
CPC ...
B01J 23/6527 (2013.01); B01J 23/652 (2013.01); B01J 23/6525 (2013.01); B01J 23/687 (2013.01); B01J 37/0225 (2013.01); B01J 37/348 (2013.01); C02F 1/705 (2013.01); C02F 1/725 (2013.01); C25D 3/48 (2013.01); C25D 3/50 (2013.01); C25D 3/54 (2013.01); C25D 3/567 (2013.01); C25D 5/10 (2013.01); C25D 5/38 (2013.01); B01J 37/06 (2013.01); C02F 2101/10 (2013.01); C02F 2103/346 (2013.01);
Abstract

The present invention provides a catalyst for hydrogen peroxide decomposition with which hydrogen peroxide present in acid-containing water to be treated can be efficiently decomposed at low cost and which is less apt to dissolve away in the water being treated, can be stably used over a long period, and renders acid recovery and recycling possible. The present invention has solved the problems with a catalyst for hydrogen peroxide decomposition which is for use in decomposing hydrogen peroxide present in acid-containing water to be treated, the catalyst including a base and, a catalyst layer that is amorphous, includes a platinum-group metal having catalytic function and a Group-6 element metal having catalytic function and is formed over the base.


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