Patent · US Expired

Regeneration of wash solutions containing Fe(II) and Fe(III) chelate complexes

US4879102A · kind A · utility

4Cited by

3References

3Claims

0Family size

Assignee

BASF SE

Inventors

Klaus-Dieter Hoppe · Monsheim, DE
Bernd Leutner · Bischofswerda, DE
Siegfried Schreiner · Ludwigshafen, DE

Key dates

Filing date	Sep 30, 1988
Grant date	Nov 7, 1989
Priority date	—
Expiry date	Sep 30, 2008

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D53/56
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Wash solutions containing Fe(II) and Fe(III) chelate complexes and used for removing NO.sub.x from waste gases are regenerated by treatment with sodium tetrahydroborate.

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