Patent number: 6264909
Abstract: An improved process for either the manufacturing of nitric acid, recycling of nitric acid, or recovering of nitric acid, comprising the steps of: providing a source of NOx; reacting NO from the source of NOx with HNO3 in the presence of NO2− to produce a resulting product; and reacting the resulting product with O2 and H2O to produce nitric acid.
Type: Grant
Filed: June 15, 1999
Date of Patent: July 24, 2001
Assignee: Drinkard Metalox, Inc.
Inventor: William F. Drinkard, Jr