Patent ID: 11883772
Assignee: ACTIVE MINERALS INTERNATIONAL, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. 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.