Method of removing toxic agents for trichlorotrifluoroethane

Details Method of removing toxic agents for trichlorotrifluoroethane Method of removing toxic agents for trichlorotrifluoroethane

1986-06-16

1989-06-27

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210690, 570179, B01D 1500

Patent

active

048427462

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.

REFERENCES:
patent: 3152077 (1964-10-01), Kryzer
patent: 3327859 (1967-06-01), Pall
patent: 4046939 (1977-09-01), Hart

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