초록 ▼

Disclosed are formed composite material compositions suitable for use in the removal of heavy metals from aqueous systems, a process for preparing said composite materials and a process for the removal of heavy metals using said composite materials. Formed particulate composite material compositions

Disclosed are formed composite material compositions suitable for use in the removal of heavy metals from aqueous systems, a process for preparing said composite materials and a process for the removal of heavy metals using said composite materials. Formed particulate composite material compositions are comprised of (A) at least one ion exchange material; (B) at least one activated carbon; and, optionally, (C) at least one binder material. The method for preparing said composite material compositions comprises first mixing components (A), (B) and, optionally, (C), then forming particles from said mixture. The method for removing heavy metals from aqueous systems containing one or more heavy metals comprises contacting said aqueous system with one or more of the composite materials until the heavy metals are substantially removed from the aqueous system.

대표청구항 ▼

[ What is claimed is:] [1.] A formed particulate composite composition suitable for use as a fixed-bed medium for the removal of heavy metals from aqueous systems comprised of (A) from about 5% to about 25% by weight of at least one ion exchange material, wherein the ion exchange material comprises

[ What is claimed is:] [1.] A formed particulate composite composition suitable for use as a fixed-bed medium for the removal of heavy metals from aqueous systems comprised of (A) from about 5% to about 25% by weight of at least one ion exchange material, wherein the ion exchange material comprises at least one of a zeolite material and an amorphous hydrated metal oxide or silicate gel, (B) from about 25% to about 75% by weight of at least one activated carbon and (C) from about 3% to about 15% of at least one binder material.