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Nitrate reduction

United States Patent

6,030,520
February 29, 2000
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
Nitrates are reduced to nitrogen gas by contacting the nitrates with a metal to reduce the nitrates to nitrites which are then contacted with an amide to produce nitrogen and carbon dioxide or acid anions which can be released to the atmosphere. Minor amounts of metal catalysts can be useful in the reduction of the nitrates to nitrites. Metal salts which are formed can be treated electrochemically to recover the metals.
Dziewinski; Jacek J. (Los Alamos, NM), Marczak; Stanislaw (Los Alamos, NM)
The Regents of the University of California (Los Alamos, NM)
08/ 857,232
May 16, 1997
This invention was made with government support under Contract No. W-7405-ENG-36 awarded by the U.S. Department of Energy. The government has certain rights in the invention.