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Title: Polymers for metal extractions in carbon dioxide

Abstract

A composition useful for the extraction of metals and metalloids comprises (a) carbon dioxide fluid (preferably liquid or supercritical carbon dioxide); and (b) a polymer in the carbon dioxide, the polymer having bound thereto a ligand that binds the metal or metalloid; with the ligand bound to the polymer at a plurality of locations along the chain length thereof (i.e., a plurality of ligands are bound at a plurality of locations along the chain length of the polymer). The polymer is preferably a copolymer, and the polymer is preferably a fluoropolymer such as a fluoroacrylate polymer. The extraction method comprises the steps of contacting a first composition containing a metal or metalloid to be extracted with a second composition, the second composition being as described above; and then extracting the metal or metalloid from the first composition into the second composition.

Inventors:
 [1];  [2];  [3];  [4];  [5];  [6];  [4]
  1. 7315 Crescent Ridge Dr., Chapel Hill, NC 27516
  2. 1130 Big Rock Loop, Los Alamos, NM 87544
  3. 103 Timber Hollow Ct. Apartment 323, Chapel Hill, NC 27514
  4. 1930 Camino Mora, Los Alamos, NM 87544
  5. 5810 Forest Ridge Dr., Durham, NC 27713
  6. 8530 Sommersweet La., Raleigh, NC 27612
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
873507
Patent Number(s):
6176895
Assignee:
DeSimone, Joseph M. (7315 Crescent Ridge Dr., Chapel Hill, NC 27516);Tumas, William (1130 Big Rock Loop, Los Alamos, NM 87544);Powell, Kimberly R. (103 Timber Hollow Ct. Apartment 323, Chapel Hill, NC 27514);McCleskey, T. Mark (1930 Camino Mora, Los Alamos, NM 87544);Romack, Timothy J. (5810 Forest Ridge Dr., Durham, NC 27713);McClain, James B. (8530 Sommersweet La., Raleigh, NC 27612);Birnbaum, Eva R. (1930 Camino Mora, Los Alamos, NM 87544)
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
polymers; metal; extractions; carbon; dioxide; composition; useful; extraction; metals; metalloids; comprises; fluid; preferably; liquid; supercritical; polymer; bound; thereto; ligand; binds; metalloid; plurality; locations; chain; length; ligands; copolymer; fluoropolymer; fluoroacrylate; method; steps; contacting; containing; extracted; described; extracting; supercritical carbon; method comprises; carbon dioxide; composition containing; composition useful; chain length; method comprise; extraction method; metal extraction; /75/423/524/526/

Citation Formats

DeSimone, Joseph M, Tumas, William, Powell, Kimberly R, McCleskey, T Mark, Romack, Timothy J, McClain, James B, and Birnbaum, Eva R. Polymers for metal extractions in carbon dioxide. United States: N. p., 2001. Web.
DeSimone, Joseph M, Tumas, William, Powell, Kimberly R, McCleskey, T Mark, Romack, Timothy J, McClain, James B, & Birnbaum, Eva R. Polymers for metal extractions in carbon dioxide. United States.
DeSimone, Joseph M, Tumas, William, Powell, Kimberly R, McCleskey, T Mark, Romack, Timothy J, McClain, James B, and Birnbaum, Eva R. Mon . "Polymers for metal extractions in carbon dioxide". United States. https://www.osti.gov/servlets/purl/873507.
@article{osti_873507,
title = {Polymers for metal extractions in carbon dioxide},
author = {DeSimone, Joseph M and Tumas, William and Powell, Kimberly R and McCleskey, T Mark and Romack, Timothy J and McClain, James B and Birnbaum, Eva R},
abstractNote = {A composition useful for the extraction of metals and metalloids comprises (a) carbon dioxide fluid (preferably liquid or supercritical carbon dioxide); and (b) a polymer in the carbon dioxide, the polymer having bound thereto a ligand that binds the metal or metalloid; with the ligand bound to the polymer at a plurality of locations along the chain length thereof (i.e., a plurality of ligands are bound at a plurality of locations along the chain length of the polymer). The polymer is preferably a copolymer, and the polymer is preferably a fluoropolymer such as a fluoroacrylate polymer. The extraction method comprises the steps of contacting a first composition containing a metal or metalloid to be extracted with a second composition, the second composition being as described above; and then extracting the metal or metalloid from the first composition into the second composition.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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Works referenced in this record:

Extraction of Toxic Heavy Metals Using Supercritical Fluid Carbon Dioxide Containing Organophosphorus Reagents
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High solubility of UO2(NO3)2·2TBP complex in supercritical CO2
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A Comparison of Liquid and Supercritical Carbon Dioxide as an Extraction Solvent for Plating Bath Treatment
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Solubility of metal chelates and their extraction from an aqueous environment via supercritical CO2
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Synthesis of Fluoropolymers in Supercritical Carbon Dioxide
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