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Title: Adsorbent for metal ions and method of making and using

Abstract

A method comprises the step of spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size in the range of 1 to 500 micrometers, said particles being active towards Cs ions. The particles, which can be of a single salt or a combination of salts, can be used free flowing, in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove Cs ions from aqueous solutions. 2 figs.

Inventors:
;
Publication Date:
Research Org.:
Battelle Memorial Institute
Sponsoring Org.:
USDOE, Washington, DC (United States); Pacific Northwest Lab., Richland, WA (United States)
OSTI Identifier:
678567
Patent Number(s):
US 5,935,380/A/
Application Number:
PAN: 8-918,113; TRN: 99:009173
Assignee:
3M Innovative Properties Co., St. Paul, MN (United States) PTO; SCA: 052001; PA: EDB-99:083821; SN: 99002124530
DOE Contract Number:
AC06-76RL01830; AR21-96MC33089
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 10 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; LIQUID WASTES; CESIUM; RADIOACTIVE WASTE PROCESSING; ADSORBENTS; CHEMICAL PREPARATION; PARTICLE SIZE; SPRAY DRYING

Citation Formats

White, L.R., and Lundquist, S.H. Adsorbent for metal ions and method of making and using. United States: N. p., 1999. Web.
White, L.R., & Lundquist, S.H. Adsorbent for metal ions and method of making and using. United States.
White, L.R., and Lundquist, S.H. 1999. "Adsorbent for metal ions and method of making and using". United States. doi:.
@article{osti_678567,
title = {Adsorbent for metal ions and method of making and using},
author = {White, L.R. and Lundquist, S.H.},
abstractNote = {A method comprises the step of spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size in the range of 1 to 500 micrometers, said particles being active towards Cs ions. The particles, which can be of a single salt or a combination of salts, can be used free flowing, in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove Cs ions from aqueous solutions. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1999,
month = 8
}
  • A method comprises the step of spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size in the range of 1 to 500 micrometers, said particles being active towards Cs ions. The particles, which can be of a single salt or a combination of salts, can be used free flowing, in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove Csmore » ions from aqueous solutions.« less
  • A method comprises the step of spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size in the range of 1 to 500 micrometers, said particles being active towards Cs ions. The particles, which can be of a single salt or a combination of salts, can be used free flowing, in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove Csmore » ions from aqueous solutions.« less
  • A method comprises the step of spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size in the range of 1 to 500 micrometers, said particles being active towards Cs ions. The particles, which can be of a single salt or a combination of salts, can be used free flowing, in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove Csmore » ions from aqueous solutions.« less
  • A solid material for recovering metal ions from aqueous streams, and methods of making and using the solid material, are disclosed. The solid material is made by covalently bonding a chelating agent to a silica-based solid, or in-situ condensing ceramic precursors along with the chelating agent to accomplish the covalent bonding. The chelating agent preferably comprises a oxime type chelating head, preferably a salicylaldoxime-type molecule, with an organic tail covalently bonded to the head. The hydrocarbon tail includes a carbon-carbon double bond, which is instrumental in the step of covalently bonding the tail to the silica-based solid or the in-situmore » condensation. The invented solid material may be contacted directly with aqueous streams containing metal ions, and is selective to ions such as copper (II) even in the presence of such ions as iron (III) and other materials that are present in earthen materials. The solid material with high selectivity to copper may be used to recover copper from mining and plating industry streams, to replace the costly and toxic solvent extraction steps of conventional copper processing.« less
  • A method for making dendritic metal nanostructures using a surfactant structure template, a metal salt, and electron donor species.