Bead and Process for Removing Dissolved Metal Contaminants

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Description

A bead is provided which comprises or consists essentially of activated carbon immobilized by crosslinked poly (carboxylic acid) binder, sodium silicate binder, or polyamine binder. The bead is effective to remove metal and other ionic contaminants from dilute aqueous solutions. A method of making metal-ion sorbing beads is provided, comprising combining activated carbon, and binder solution (preferably in a pin mixer where it is whipped), forming wet beads, and heating and drying the beads. The binder solution is preferably poly(acrylic acid) and glycerol dissolved in water and the wet beads formed from such binder solution are preferably heated and crosslinked ... continued below

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9 ; 512 KB pages

Creation Information

Summers, Bobby L., Jr.; Bennett, Karen L. & Foster, Scott A. January 18, 2005.

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This patent is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times . More information about this patent can be viewed below.

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Description

A bead is provided which comprises or consists essentially of activated carbon immobilized by crosslinked poly (carboxylic acid) binder, sodium silicate binder, or polyamine binder. The bead is effective to remove metal and other ionic contaminants from dilute aqueous solutions. A method of making metal-ion sorbing beads is provided, comprising combining activated carbon, and binder solution (preferably in a pin mixer where it is whipped), forming wet beads, and heating and drying the beads. The binder solution is preferably poly(acrylic acid) and glycerol dissolved in water and the wet beads formed from such binder solution are preferably heated and crosslinked in a convection oven.

Physical Description

9 ; 512 KB pages

Notes

U.S. Patent and Trademark Office, www.uspto.gov; OSTI as DE00836212

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  • Other Information: Supercedes report DE00836212

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  • Report No.: PATENTS-US-A6843922
  • Office of Scientific & Technical Information Report Number: 836212
  • Archival Resource Key: ark:/67531/metadc782910

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 18, 2005

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

Description Last Updated

  • March 11, 2016, 1:42 p.m.

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Citations, Rights, Re-Use

Summers, Bobby L., Jr.; Bennett, Karen L. & Foster, Scott A. Bead and Process for Removing Dissolved Metal Contaminants, patent, January 18, 2005; United States. (digital.library.unt.edu/ark:/67531/metadc782910/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.