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Effects of environmental weathering on the properties of ASC-whetlerite by Joseph Rossin; Erica Petersen; David Tevault; Robert Lamontagne; Louis Isaacson is a Materials Science article available to read on EtoBox.

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Abst~et-Activated, impregnated carbon from a radial Row air purification filter was separated into fractions after the filter had been exposed to shipboard environmental conditions for 21 months. Carbon samples from the discrete filter locations were analyzed using surface analysis methods. Breakthrough times of the segregated carbon fractions were recorded for a cyanogen chloride challenge. The inlet portion of the filter was most severely affected by the weathering. For carbon removed from the filter inlet. the weathering process caused impregnants to leach from the granules and form metal sulfates, presumably by reaction with atmospheric SO,. No sulfur was detected on carbon samples removed from the center and outlet portions of the filter; however, a significant fraction of the chromium(VI) impregnant had been reduced to chromium(II1). In all cases, breakthrough times recorded for a cyanogen chloride challenge were significantly less than that recorded for the unweathered carbon sample.

Who reads Effects of environmental weathering on the properties of ASC-whetlerite?

Author

Joseph Rossin; Erica Petersen; David Tevault; Robert Lamontagne; Louis Isaacson

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0008-6223)

Published

1991

Language

EN

Field

Materials Science (Physical Sciences)