Phenoxypyrazole composition and process for the solvent extraction of metals
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United States of America Patent
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Jan 3, 2012
Grant Date -
Dec 18, 2008
app pub date -
Aug 7, 2006
filing date -
Sep 14, 2005
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Expired
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Abstract
is hydrogen, an optionally substituted hydrocarbyl, optionally substituted hydrocarbyloxy, optionally substituted hydrocarbyloxycarbonyl, optionally substituted hydrocarbylcarbonyloxy group, optionally substituted optionally substituted mono or dihydrocarbylaminocarbonyl group; and tautomers or salts thereof, with the proviso that both Y and Z could be N provided that no more than one of Y or Z is N.
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