Method of removing toxic agents for trichlorotrifluoroethane
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United States of America Patent
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Jun 27, 1989
Grant Date -
N/A
app pub date -
Jun 16, 1986
filing date -
Jun 16, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a method of and apparatus for removing chemical nerve agents such as tabun, sarin and soman and chemical blister agents such as mustard gas and lewisite from a cleaning solvent such that the solvent is rendered contaminant free and safely resuable in future cleaning operations. The solvent, trichlorotrifluoroethene and the contaminants are soluble in one another and are all of non-polar configuration. Removal is effected by preferential adsorption of the contaminants from the solvent. Effective adsorbents are Fuller's Earth, activated charcoal, activated alumina and silica gel.
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