Patent · US Expired

Process for regenerating used deNOx or dedioxin catalytic converters

US6484733B2 · kind B2 · utility

17Cited by
3References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 23, 2001
Grant dateNov 26, 2002
Priority date
Expiry dateApr 21, 2021

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J38/60
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Used deNOx or dedioxin catalytic converters are regenerated by washing the catalyst with a solution of surface-active substances in a liquid. At the same time, metal compounds are added for creating active centers.

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