Product for metal adsorption
AssigneeActive Minerals International, LLC
InventorsBo Wang, Dennis Parker
Life of this patent
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Abstract
A product for adsorbing one or more heavy metals from a liquid is disclosed. The product may comprise attapulgite that has been surface functionalized with a surface coating agent that includes one or more mercury affinity functional groups that chemically bond to the attapulgite surface, wherein the weight percentage of components of the product includes: 91-99 wt. % attapulgite and 1-9 wt. % surface coating agent that includes the one or more mercury affinity functional groups. The product has a surface area in the range of 115-145 m2/g as measured using the BET method. The heavy metal includes mercury and/or lead. Also disclosed is a method of producing the product and a method of adsorbing at least one heavy metal in a liquid using the product.
Claims8
A product for adsorbing a heavy metal in a liquid, the product comprising attapulgite that includes 9-14 wt. % moisture as measured at 104° C., wherein the attapulgite has been surface functionalized with a surface coating agent that includes one or more mercury affinity functional groups that chemically bond to the attapulgite surface,
- wherein the weight percentage of components of the product includes:
- 9199 wt. % attapulgite and
- 1-9 wt. % surface coating agent that includes the one or more mercury affinity functional groups,
- wherein the product has a surface area in the range of 115-145 m2/g as measured using the BET method,
- wherein the heavy metal includes mercury and/or lead.
Dependencies are inferred from the claim text.