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:
Jan. 02, 2001

Filed:

Feb. 17, 1998
Applicant:
Inventors:

Norihide Saho, Tsuchiura, JP;

Hisashi Isogami, Chiyoda-machi, JP;

Minoru Morita, Chiyoda-machi, JP;

Yoshiki Shibano, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 8/00 ; B01D 4/700 ; A62D 3/00 ;
U.S. Cl.
CPC ...
B01J 8/00 ; B01D 4/700 ; A62D 3/00 ;
Abstract

Substances to be processed and a hydrogen peroxide aqueous solution are enclosed in a process vessel, and a the process vessel is enclosed in an autoclave together with water. Oxidation processing of the substances is performed by changing the state in the autoclave and the process vessel to a supercritical state which is realized by heating an outer wall of the autoclave with a heater. Further, even if the substances leak from the process vessel, by oxidizing the leaking substances in the autoclave the leaking of the substances to the outside of an oxidation processing apparatus is prevented.


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