Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1996-08-02
2000-02-29
Nessler, Cynthia L.
Liquid purification or separation
Processes
Ion exchange or selective sorption
210660, 502414, C02F 128
Patent
active
060305371
ABSTRACT:
Disclosed is a method for removing arsenic from aqueous systems containing arsenic which includes contacting said aqueous system with an adsorbent material comprising (i) activated bauxite and (ii) aluminum trihydrate, until the arsenic is substantially removed from said aqueous system. The adsorbent material is prepared by the steps including (i) mixing powders of activated bauxite and aluminum trihydrate in the presence of water to form granules; (ii) drying said granules; and (iii) calcining said dried granules.
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Greene Arthur F.
Russo Robert V.
Shaniuk Thomas J.
Engelhard Corporation
Keller Raymond F.
Nessler Cynthia L.
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