Removal of Tetranitromethane from Air Streams
NAVAL SURFACE WEAPONS CENTER WHITE OAK LAB SILVER SPRING MD
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During the manufacture of TNT, one of the side products formed in relatively small amount is tetranitromethane TNM. In the past it has been the practice to vent the TNM along with some nitrogen oxides mainly NO to the atmosphere. However, because of present-day awareness of pollution problems, EPA regulations now require the combined NOTNM present in the exhaust gases to be below 100 ppm. In order to meet this requirement most of the TNM mustbe removed. Since TNM as a precursor of nitroform, can be used for the synthesis of a wide variety of polynitroaliphatics a desirable solution would be to collect the TNM as such or as nitroform thereby reducing the cost of pollution abatement.
- Air Pollution and Control