Sulfur-impregnated organoclay mercury and/or arsenic ion...

Details Sulfur-impregnated organoclay mercury and/or arsenic ion... Sulfur-impregnated organoclay mercury and/or arsenic ion...

B - Operations, Transporting

01

D

B01D 53/64 (2006.01) B01D 53/86 (2006.01) C04B 41/49 (2006.01)

Patent

CA 2723366

The use of a sulfur-impregnated organoclay provides a mercury or arsenic removal media having increased reactivity, stability, and mercury removal ability. The Hg/As removal media described herein is prepared by impregnating an organophilic clay with elemental (free state) sulfur. Alternatively, the clay can be made organophilic by onium ion reaction prior to or simultaneously with impregnating the organoclay with sulfur.

Selon linvention, lutilisation dargile organique imprégnée de soufre permet lobtention dun milieu délimination du mercure ou de larsenic présentant une réactivité, une stabilité et une aptitude accrues à lélimination du mercure. Le milieu délimination de Hg/As décrit dans la présente invention est préparé par limprégnation dune argile organophilique avec du soufre élémentaire (état libre). En variante, largile peut être rendue organophilique par une réaction de lion onium avant limprégnation, ou simultanément à limprégnation de largile organique avec le soufre.

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