Composition with shell and core for removal of ionic contaminants
AssigneeUop LLC
InventorsEvgeny T. Kolev, Dean E. Rende, Tsukasa Tamai
Life of this patent
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Abstract
A composition for selectively removing a first ionic contaminant from a wastewater stream. The composition is formed into a particle. The composition includes a core formed of a non-active material relative to the first ionic contaminant, and, a shell formed from an active material relative to the first ionic contaminant, wherein the active material comprises between 10 to 50 wt % of the particle. The shell may also include a binder material that may be non-active relative to the first ionic contaminant, but active relative to a second ionic contaminant. The core may be formed from a glass-forming material so that a vitrification process may be used for the spent solid waste.
Claims17
A composition for selectively removing a first ionic contaminant from a wastewater stream, the composition formed into a particle and comprising:
- a core of a non-active material relative to the first ionic contaminant, the non-active material selected from a group consisting of:
- ceramic, silica, alumina, titania, zirconia, silicates, titanates, zeolites, and combinations thereof, and the non-active material forming an innermost portion of the particle;
- and,
- a shell formed from a binder and an active material relative to the first ionic contaminant,
- wherein the active material comprises between 10 to 50 wt % of the particle,
- wherein the binder comprises hydroxyl metal oxide.
A composition for selectively removing a first ionic contaminant from a wastewater stream, the composition formed into a particle and comprising:
- a core of a non-active material relative to the first ionic contaminant, non-active material selected from a group consisting of:
- ceramic, silica, alumina, titania, zirconia, silicates, titanates, zeolites, and combinations thereof, and the non-active material forming an innermost portion of the particle;
- and,
- a shell formed from a binder and an active material relative to the first ionic contaminant,
- wherein the shell comprises between 0.1 to 40 wt % of the binder,
- wherein the active material comprises between 10 to 50 wt % of the particle.
Dependencies are inferred from the claim text.