Patent Number: 6,761,828

Title: Process for the reduction of concentration of nitrates and/or nitrogen-containing compounds by means of SO2

Abstract: Nitrate-containing (contaminated) solutions are reduced with SO.sub.2 gas in the presence of an at least equimolar amount of NH.sub.4.sup.+ or ammonium salt.

Inventors: Heuser; Jurgen (Krefeld, DE), Verhoeven; Werner (Kalmthout, BE), Sluyts; Domien (Hoevenen, BE), Denecker; Gabriel (Kalmthout, BE)

Assignee: Bayer Aktiengesellschaft

International Classification: C01C 1/00 (20060101); C01C 1/24 (20060101); C02F 1/70 (20060101); C02F 001/68 ()

Expiration Date: 07/13/2021