Skip to Content
Find More Like This
Return to Search

Electrochemical process for the preparation of nitrogen fertilizers

United States Patent

9,005,422
April 14, 2015
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Methods and apparatus for the preparation of nitrogen fertilizers including ammonium nitrate, urea, urea-ammonium nitrate, and/or ammonia are disclosed. Embodiments include (1) ammonium nitrate produced via the reduction of a nitrogen source at the cathode and the oxidation of a nitrogen source at the anode; (2) urea or its isomers produced via the simultaneous cathodic reduction of a carbon source and a nitrogen source: (3) ammonia produced via the reduction of nitrogen source at the cathode and the oxidation of a hydrogen source or a hydrogen equivalent such as carbon monoxide or a mixture of carbon monoxide and hydrogen at the anode; and (4) urea-ammonium nitrate produced via the simultaneous cathodic reduction of a carbon source and a nitrogen source, and anodic oxidation of a nitrogen source.
Jiang; Junhua (Urbana, IL), Aulich; Ted R. (Grand Forks, ND), Ignatchenko; Alexey V. (Grand Forks, ND)
Energy & Environmental Research Center Foundation (Grand Forks, ND)
12/ 905,600
20110120880
October 15, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with U.S. Government support under Contract No. DE-FC36-03GO13055 awarded by the U.S. Department of Energy, and Contract Nos. 2003-38819-02014, 2004-38819-02182, 2005-38819-02311, and 2006-38819-03470 awarded by the U.S. Department of Agriculture. The Government has certain rights in this invention.