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Title: Nitrate reduction

Abstract

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.

Inventors:
 [1];  [1]
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  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
OSTI Identifier:
872875
Patent Number(s):
6030520
Assignee:
Regents of University of California (Los Alamos, NM)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
nitrate; reduction; nitrates; reduced; nitrogen; gas; contacting; metal; reduce; nitrites; contacted; amide; produce; carbon; dioxide; acid; anions; released; atmosphere; minor; amounts; catalysts; useful; salts; formed; treated; electrochemically; recover; metals; nitrogen gas; metal catalysts; minor amounts; metal salts; carbon dioxide; metal salt; metal catalyst; minor amount; /205/210/

Citation Formats

Dziewinski, Jacek J, and Marczak, Stanislaw. Nitrate reduction. United States: N. p., 2000. Web.
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Dziewinski, Jacek J, & Marczak, Stanislaw. Nitrate reduction. United States.
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Dziewinski, Jacek J, and Marczak, Stanislaw. Sat . "Nitrate reduction". United States. https://www.osti.gov/servlets/purl/872875.
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@article{osti_872875,
title = {Nitrate reduction},
author = {Dziewinski, Jacek J and Marczak, Stanislaw},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}
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