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US 5,330,560 AGranted
Supported sorbents for removal and recovery of arsenic from gases
AssigneeGas Research Institute
InventorsSherman S. Chao, Amir Attari
Life of this patent
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Abstract
A process for removal and recovery of arsenic from a gas comprising contacting a supported sorbent with an arsenic-containing gas, adsorbing the arsenic with the supported sorbent, desorbing the arsenic from the supported sorbent, and collecting the desorbed arsenic.
Claims12
A process for removal and recovery of arsenic from a gas comprising the steps of:
- contacting a supported sorbent comprising an inert solid support coated with one of phosphoric acid and at least one metal halide with an arsenic-containing gas;
- one of adsorbing and absorbing said arsenic with said supported sorbent;
- desorbing said arsenic from said supported sorbent;
- and
- collecting said desorbed arsenic.
2 more elements
Dependencies are inferred from the claim text.