Electrochemical process for the preparation of nitrogen fertilizers

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United States of America Patent

PATENT NO 9005422
APP PUB NO 20110120880A1
SERIAL NO

12905600

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Abstract

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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.

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Patent Owner(s)

  • ENERGY AND ENVIRONMENTAL RESEARCH CENTER FOUNDATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aulich, Ted R Grand Forks, US 15 225
Ignatchenko, Alexey V Grand Forks, US 6 45
Jiang, Junhua Urbana, US 20 77

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