Patent Number: 6,168,771

Title: Supercritical oxidation process and apparatus

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.

Inventors: Saho; Norihide (Tsuchiura, JP), Isogami; Hisashi (Chiyoda-machi, JP), Morita; Minoru (Chiyoda-machi, JP), Shibano; Yoshiki (Hitachi, JP)

Assignee: Hitachi, Ltd.

International Classification: A62D 3/00 (20060101); B01J 3/04 (20060101); B01J 19/00 (20060101); B01J 3/00 (20060101); B01J 008/00 (); B01D 047/00 (); A62D 003/00 ()

Expiration Date: 01/02/2018