Water-soluble polymers for recovery of metal ions from aqueous streams

Title: Water-soluble polymers for recovery of metal ions from aqueous streams

Full Record
Other Related Research

Abstract

A process of selectively separating a target metal contained in an aqueous solution by contacting the aqueous solution containing a target metal with an aqueous solution including a water-soluble polymer capable of binding with the target metal for sufficient time whereby a water-soluble polymer-target metal complex is formed, and, separating the solution including the water-soluble polymer-target metal complex from the solution is disclosed.

Inventors:

Smith, Barbara F. ^[1]; Robison, Thomas W. ^[1]

(Los Alamos, NM)

Issue Date:: 1998-01-01

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM

OSTI Identifier:: 871622

Patent Number(s):: 5766478

Assignee:: Regents of University of California, Office of Technology (Alameda, CA) LANL

DOE Contract Number:: W-7405-ENG-36

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: water-soluble; polymers; recovery; metal; aqueous; streams; process; selectively; separating; target; contained; solution; contacting; containing; including; polymer; capable; binding; sufficient; time; whereby; polymer-target; complex; formed; disclosed; selectively separating; water-soluble polymers; solution including; aqueous stream; solution containing; aqueous solution; sufficient time; metal complex; target metal; soluble polymer; polymer capable; metal contained; water-soluble polymer; soluble poly; aqueous streams; /210/423/

Citation Formats


                    Smith, Barbara F., and Robison, Thomas W. Water-soluble polymers for recovery of metal ions from aqueous streams.  United States: N. p., 1998. 
        Web.

Copy to clipboard


                    Smith, Barbara F., & Robison, Thomas W. Water-soluble polymers for recovery of metal ions from aqueous streams.  United States.

Copy to clipboard


                    Smith, Barbara F., and Robison, Thomas W. Thu .  
        "Water-soluble polymers for recovery of metal ions from aqueous streams".  United States.  https://www.osti.gov/servlets/purl/871622.

Copy to clipboard


                    
@article{osti_871622,

  title        = {Water-soluble polymers for recovery of metal ions from aqueous streams},

  author       = {Smith, Barbara F. and Robison, Thomas W.},

  abstractNote = {A process of selectively separating a target metal contained in an aqueous solution by contacting the aqueous solution containing a target metal with an aqueous solution including a water-soluble polymer capable of binding with the target metal for sufficient time whereby a water-soluble polymer-target metal complex is formed, and, separating the solution including the water-soluble polymer-target metal complex from the solution is disclosed.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

Water-soluble metal-binding polymers with ultrafiltration: A technology for the removal, concentration, and recovery of metal ions from aqueous streams

Conference Smith, B.F.; Robison, T.W.; Jarvinen, G.D.

The use of water-soluble metal-binding polymers coupled with ultrafiltration (UF) is a technology under development to selectively concentrate and recover valuable or regulated metal-ions from dilute process or waste waters. The polymers have a sufficiently large molecular size that they can be separated and concentrated using commercially available UF technology. The polymers can then be reused by changing the solution conditions to release the metal-ions, which are recovered in a concentrated form for recycle or disposal. Pilot-scale demonstrations have been completed for a variety of waste streams containing low concentrations of metal ions including electroplating wastes (zinc and nickel) andmore »« less
Full Text Available
Activation of water soluble amines by halogens for trapping methyl radioactive iodine from air streams

Patent Deitz, Victor R. (3310 Winnett Road, Chevy Chase, MD 20015); Blachly, Charles H. (1903 Tuckerman St., West Hyattsville, MD 20782)

Gas adsorbent charcoals impregnated with an aqueous solution of the reaction product of a tertiary amine and elemental iodine or bromine are better than 99 per cent efficient in trapping methyl iodine.sup.131. The chemical addition of iodine or bromine to the tertiary amine molecule increases the efficiency of the impregnated charcoal as a trapping agent, and in conjunction with the high flash point of the tertiary amine raises the ignition temperature of the impregnated charcoal.
Full Text Available
Method for separating water soluble organics from a process stream by aqueous biphasic extraction

Patent Chaiko, David J. (Naperville, IL); Mego, William A. (Naperville, IL)

A method for separating water-miscible organic species from a process stream by aqueous biphasic extraction is provided. An aqueous biphase system is generated by contacting a process stream comprised of water, salt, and organic species with an aqueous polymer solution. The organic species transfer from the salt-rich phase to the polymer-rich phase, and the phases are separated. Next, the polymer is recovered from the loaded polymer phase by selectively extracting the polymer into an organic phase at an elevated temperature, while the organic species remain in a substantially salt-free aqueous solution. Alternatively, the polymer is recovered from the loaded polymermore »« less
Full Text Available
Polymer-supported sulfonated catechol and linear catechol amide ligands and their use in selective metal ion removal and recovery from aqueous solutions

Patent Fish, Richard H. (Berkeley, CA)

The present invention concerns the synthesis of several biomimetically important polymer-supported, sulfonated catechol (PS-CATS), sulfonated bis-catechol linear amide (PS-2-6-LICAMS) and sulfonated 3,3-linear tris-catechol amide (PS-3,3-LICAMS) ligands, which chemically bond to modified 6% crosslinked macroporous polystyrene-divinylbenzene beads (PS-DVB). These polymers are useful for the for selective removal and recovery of environmentally and economically important metal ions from aqueous solution, as a function of pH. The Fe.sup.3+ ion selectivity shown for PS-CATS, PS-2-6-LICAMS, and PS-3,3-LICAMS polymer beads in competition with a similar concentration of Cu.sup.2+, Zn.sup.2+, Mn.sup.2+, Ni.sup.2+,Mg.sup.2+, Al.sup.3+, and Cr.sup.3+ ions at pH 1-3. Further, the metal ion selectivity is changedmore »« less
Full Text Available
Polymer-supported sulfonated catechol and linear catechol amide ligands and their use in selective metal ion removal recovery from aqueous solutions

Patent Fish, Richard H. (Berkeley, CA)

The present invention concerns the synthesis of several biomimetically important polymer-supported, sulfonated catechol (PS-CATS), sulfonated bis-catechol linear amide (PS-2-6-LICAMS) and sulfonated 3,3-linear tris-catechol amide (PS-3,3-LICAMS) ligands, which chemically bond to modified 6% crosslinked macroporous polystyrene-divinylbenzene beads (PS-DVB). These polymers are useful for the for selective removal and recovery of environmentally and economically important metal ions from aqueous solution, as a function of pH. The Fe.sup.3+ ion selectivity shown for PS-CATS, PS-2-6-LICAMS, and PS-3,3-LICAMS polymer beads in competition with a similar concentration of Cu.sup.2+, Zn.sup.2+, Mn.sup.2+, Ni.sup.2+, Mg.sup.2+, Al.sup.3+, and Cr.sup.3+ ions at pH 1-3. Further, the metal ion selectivity ismore »« less
Full Text Available

Similar Records