Method of removing mercury and/or arsenic from water or mercury from a gas using an extruded onium ion intercalated silane coupling agent reacted layered phyllosilicate
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United States of America Patent
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Feb 26, 2013
Grant Date -
Dec 29, 2011
app pub date -
Sep 2, 2011
filing date -
Jun 5, 2007
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Abstract
The use of a coupling agent containing a mercapto, disulfide, tretrasulfide and/or polysulfide end group provides a mercury removal media having increased reactivity, stability, and mercury removal ability. The mercury removal media described herein is prepared by reacting an organophilic clay containing onium ions with a mercapto, disulfide, tetrasulfide, and/or polysulfide end moiety. Alternatively, the clay can be made organophilic by onium ion reaction prior to or simultaneously with the coupling reaction of the mercapto- or sulfide-end group-containing coupling agent.
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