Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Reexamination Certificate
2005-07-26
2005-07-26
Johnson, Christina (Department: 1725)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
C502S064000, C502S074000
Reexamination Certificate
active
06921732
ABSTRACT:
The present invention is directed to an adsorbent for removing arsenic species from ground water and/or surface water systems. Such adsorbent removes both As(III) and As(V), thereby providing potable water. Also provided is a method and/or device (e.g., filter) for removing arsenic species from contaminated waters utilizing such adsorbent.
REFERENCES:
patent: 5716588 (1998-02-01), Vergani et al.
patent: 6790363 (2004-09-01), Vempati
ChK Group Inc.
Gunter, Jr. Charles D.
Johnson Christina
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