Patent · US Expired

Supercritical oxidation process and apparatus

US6168771A · kind A · utility

6Cited by
4References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 17, 1998
Grant dateJan 2, 2001
Priority date
Expiry dateFeb 17, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/54
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.