Method of removing chlorine and halogen-oxygen compounds from water by catalytic reduction

US5779915A · kind A · utility

Assignee

• Solvay Umweltchemie GmbH · DE

Inventors

• Arne Tjark Becker · Houston, US
• Michael Sell · Peine, DE
• Gerhard Neuenfeldt · Nienburg/Weser, DE
• Veronika Koch · Gehrden, DE
• Hubert Schindler · Uetze, DE

Key dates

• Filing date: Mar 7, 1997
• Grant date: Jul 14, 1998
• Expiry date: Mar 7, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2303/185
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

The invention concerns a method of removing substances present in water, in particular halogen-oxygen compounds which remain in the water as residues of disinfecting or are formed as by-products of oxidative water treatment. According to the invention, the substances present in water are removed by catalytic reduction in the presence of hydrogen on a supported precious metal catalyst.