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Title: Selective oxoanion separation using a tripodal ligand

Abstract

The present invention relates to urea-functionalized crystalline capsules self-assembled by sodium or potassium cation coordination and by hydrogen-bonding water bridges to selectively encapsulate tetrahedral divalent oxoanions from highly competitive aqueous alkaline solutions and methods using this system for selective anion separations from industrial solutions. The method involves competitive crystallizations using a tripodal tris(urea) functionalized ligand and, in particular, provides a viable approach to sulfate separation from nuclear wastes.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1240417
Patent Number(s):
9,260,326
Application Number:
13/485,118
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 May 31
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 08 HYDROGEN

Citation Formats

Custelcean, Radu, Moyer, Bruce A., and Rajbanshi, Arbin. Selective oxoanion separation using a tripodal ligand. United States: N. p., 2016. Web.
Custelcean, Radu, Moyer, Bruce A., & Rajbanshi, Arbin. Selective oxoanion separation using a tripodal ligand. United States.
Custelcean, Radu, Moyer, Bruce A., and Rajbanshi, Arbin. Tue . "Selective oxoanion separation using a tripodal ligand". United States. https://www.osti.gov/servlets/purl/1240417.
@article{osti_1240417,
title = {Selective oxoanion separation using a tripodal ligand},
author = {Custelcean, Radu and Moyer, Bruce A. and Rajbanshi, Arbin},
abstractNote = {The present invention relates to urea-functionalized crystalline capsules self-assembled by sodium or potassium cation coordination and by hydrogen-bonding water bridges to selectively encapsulate tetrahedral divalent oxoanions from highly competitive aqueous alkaline solutions and methods using this system for selective anion separations from industrial solutions. The method involves competitive crystallizations using a tripodal tris(urea) functionalized ligand and, in particular, provides a viable approach to sulfate separation from nuclear wastes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {2}
}

Patent:

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