Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2005-01-27
2008-11-11
Drodge, Joseph W (Department: 1797)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C210S638000, C210S639000, C210S749000, C210S806000, C423S658500
Reexamination Certificate
active
07449591
ABSTRACT:
A process of diminishing the concentration of a transition metal complex from a first solution by adding a solubility-enhancing compound that enhances the solubility of said complex in a second solution and extracting the first solution with the second solution. The solubility-enhancing compound is a compound of formula Awherein,Rais SH, SO3H, OH or COOH;Rbis SH, OH or COOH;Rceach independently is H, SH, OH or COOH;Rdeach independently is H or COOH;n is 1, 2, 3, 4 or 5;or a salt or an activated form thereof.
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Brenner Michael
Donsbach Kai
Nicola Thomas
Wirth Thomas
Boehringer Ingelheim International GmbH
Datlow Philip I.
Devlin Mary-Ellen M.
Drodge Joseph W
Morris Michael P.
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