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Title: Solid-phase materials for chelating metal ions and methods of making and using same

Abstract

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-situ 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.

Inventors:
; ;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174363
Patent Number(s):
6,576,335
Application Number:
09/745,024
Assignee:
Bechtel BWXT Idaho, LLC (Idaho Falls, ID) OSTI
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Harrup, Mason K., Wey, John E., and Peterson, Eric S. Solid-phase materials for chelating metal ions and methods of making and using same. United States: N. p., 2003. Web.
Harrup, Mason K., Wey, John E., & Peterson, Eric S. Solid-phase materials for chelating metal ions and methods of making and using same. United States.
Harrup, Mason K., Wey, John E., and Peterson, Eric S. Tue . "Solid-phase materials for chelating metal ions and methods of making and using same". United States. https://www.osti.gov/servlets/purl/1174363.
@article{osti_1174363,
title = {Solid-phase materials for chelating metal ions and methods of making and using same},
author = {Harrup, Mason K. and Wey, John E. and Peterson, Eric S.},
abstractNote = {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-situ 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {6}
}

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