Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Having specifically intended extraneously added iron group...
Reexamination Certificate
2004-12-07
2008-09-30
Barry, Chester T. (Department: 1797)
Catalyst, solid sorbent, or support therefor: product or process
Solid sorbent
Having specifically intended extraneously added iron group...
C502S407000, C502S414000
Reexamination Certificate
active
07429551
ABSTRACT:
Adsorbents for removing anions of a heavy metals and methods for using same are provided. Metal removing adsorbents comprise a porous material in which at least one oxygen-containing compound of iron, copper, aluminum, titanium, and/or zirconium is incorporated. The oxygen-containing compound may be incorporated into the porous media by impregnation or dispersion of a suitable precursor of such a compound. The precursor may be further treated to yield the oxygen-containing compound. Such adsorbents are particularly useful for removing arsenic and/or selenium from the environment and may be used in treating drinking water sources.
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Barry Chester T.
Calgon Carbon Corporation
Cohen & Grigsby P.C.
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