Dry scrubbing air filtration media
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United States of America Patent
Stats
-
Aug 21, 2012
Issued Date -
N/A
app pub date -
Mar 18, 2010
filing date -
Mar 18, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A solid air filtration medium includes an impregnate with an organic amine and an inorganic metal salt. The medium has from about 0.1 to about 25% by weight of impregnate. The impregnate contains from about 0.1 to about 5% by weight organic amine, and the organic amine includes aqueous urea, solid urea, melamine or mixtures thereof. The impregnate contains from about 0.1 to about 5% by weight metal salt, and the metal salt includes magnesium oxide, calcium oxide or mixtures thereof. The impregnate optionally further includes a surfactant such as polyacrylic acid. Methods for forming a solid air filtration medium having an impregnate containing an organic amine and an inorganic metal salt and methods for removing contaminants from a fluid stream are also provided.
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Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- B01J Class
- 7.74 % this patent is cited more than
- 13 Age
