Accession Number:

ADA415071

Title:

Ambient Reactive Sorption OF CW Simulants on Cation Exchanged Zeolites

Descriptive Note:

Final rept. 21 May 2001-30 Jun 2002

Corporate Author:

CASE WESTERN RESERVE UNIV CLEVELAND OH

Report Date:

2002-11-25

Pagination or Media Count:

4.0

Abstract:

Zeolite sorbentcatalyst materials were prepared, characterized and then utilized to determine their surface interactions at ambient temperature with common CW simulants for VX and HD. From this research, new insights regarding reactive sorption pathways of simulants on exchanged zeolites at ambient temperature have been proposed which will aid in developing superior alternates for sorption and detoxification of CW agents in the field. Experiments utilized a Bomem FTIR spectrometer with Harrick cell for in situ measurements of interactions between zeolite and CW simulant. Zeolite SiAl ratios were varied from 15 to 40. Three sorbent catalyst media were evaluated Chromium-ZSM-5, Silver-ZSM-5 and standard gamma alumina. Results showed maximum destruction of TCE and DEMP simulants by Chromium-ZSM-5, followed by Silver-ZSM-5. Gamma alumina was found to be the least destructive. Initial work with dichloropropene DCP, which is a common pesticide and also a CW simulant showed ambient chemisorption and also chemical rearrangement on Chromium-ZSM-5.

Subject Categories:

  • Physical Chemistry
  • Chemical, Biological and Radiological Warfare

Distribution Statement:

APPROVED FOR PUBLIC RELEASE