Method of regenerating mercury adsorption means
AssigneeDegussa AG
InventorsWolfgang Hasenpusch, Harald Wetterich
Life of this patent
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Abstract
Ceramic particles impregnated with silver nitrate for adsorbing mercury from waste gases can be regenerated and reused if the mercury is distilled off at 600.degree. to 900.degree. C. and the ceramic particles are subsequently impregnated with nitric acid.
Claims6
A method for regenerating ceramic particles impregnated with silver nitrate used for the removal of mercury from waste gases, comprising heating ceramic particles containing adsorbed mercury to 600.degree. to 900.degree. C. in order to distill and remove the mercury from said particles prior to treatment with nitric acid, recovering the ceramic particles and subsequently impregnating said particles which are free of mercury with nitric acid.
Dependencies are inferred from the claim text.