Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1985-03-18
1989-01-31
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55 68, 55 74, 55387, 422122, 422177, 423236, 423240, B01D 5304
Patent
active
048013110
ABSTRACT:
A chromium free absorbent filter material and method for removing toxic gases such as cyanogen chloride, cyanogen and hydrogen cyanide is disclosed. The filter material is a whetlerite type activated carbon impregnated with copper, silver, and molybdenum and/or vanadium salts together with triethylenediamine and essentially retains the effectiveness of similar chromium containing whetlerites for protection without the carcinogenic hazard presented by chromium. The new material also releases substantially less ammonia odor compared to the conventional chromium bearing whetlerite.
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McDaniel Terry B.
Schmalz Richard L.
Spitzer Robert
Westvaco Corporation
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