Catalyst – solid sorbent – or support therefor: product or process – Miscellaneous
Reexamination Certificate
2003-12-04
2008-07-01
Johnson, Edward M. (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Miscellaneous
Reexamination Certificate
active
07393810
ABSTRACT:
Solid materials have been developed to remove arsenic compounds from aqueous media. The arsenic is removed by passing the aqueous phase through the solid materials which can be in molded, granular, or powder form. The solid materials adsorb the arsenic leaving a purified aqueous stream. The materials are aerogels or xerogels and aerogels or xerogels and solid support structure, e.g., granulated activated carbon (GAC), mixtures. The species-specific adsorption occurs through specific chemical modifications of the solids tailored towards arsenic.
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Coleman Sabre J.
Coronado Paul R.
Dias Victoria L.
Reynolds John G.
Sanner Robert D.
Johnson Edward M.
Lawrence Livermore National Security LLC
Lee Ann M.
Staggs Michael C.
Wooldridge John P.
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