Patent · US Expired

Oxidation of ammonium ions and organic carbon in wastewaters

US5453208A · kind A · utility

0Cited by

5References

5Claims

0Family size

Assignee

BASF SE

Inventors

Karl Baur · Baierbrunn, DE
Thomas Papkalla · Mannheim, DE
Ulrich Kanne · Bischofswerda, DE
Peter Stops · Altrip, DE

Key dates

Filing date	Nov 22, 1993
Grant date	Sep 26, 1995
Priority date	—
Expiry date	Nov 22, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S210/903
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A process for the oxidation of ammonium ions and organic carbon in wastewaters containing ammonium ions and organic carbon by means of nitric acid at from 100.degree. to 350.degree. C., wherein the molar ratio between organic carbon and ammonium nitrogen is adjusted to a value in the range from 0.3:1 to 4:1 by addition of organic carbon or ammonium nitrogen.

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