Solvent extraction
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United States of America Patent
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Nov 10, 1998
Grant Date -
N/A
app pub date -
Apr 25, 1996
filing date -
Apr 21, 1994
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Abstract
A method of extracting anionic species from a solid or liquid medium by contacting the medium with an extract solvent of supercritical carbon dioxide and a positively charged complexant ligand for solubilizing and extracting the anionic species form the medium.
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