Patent · US Expired

Process for the treatment of effluent containing cyanide and toxic metals, using hydrogen peroxide and trimercaptotriazine

US4822496A · kind A · utility

13Cited by

8References

12Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Andrew Griffiths · Ridgewood, US
Roy Norcross · Norwalk, US
Gerhard Scherer · Montvale, US
Friedrich W. Merz · Nierstein, DE
Stephen Gos · Miltenberg, DE

Key dates

Filing date	Aug 18, 1988
Grant date	Apr 18, 1989
Priority date	—
Expiry date	Aug 18, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S210/912
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A process for the treatment of aqueous effluent containing cyanide and toxic or heavy metals, wherein the effluent is contacted with a sufficient amount of hydrogen peroxide to oxidize at least a substantial portion of the cyanide in the effluent in the presence of sufficient trimercaptotriazine to react with a substantial portion of the metal present in said effluent, and precipitating said metal component.

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