C - Chemistry – Metallurgy – 07 – K
Patent
C - Chemistry, Metallurgy
07
K
C07K 5/08 (2006.01) C07C 6/04 (2006.01) C07F 15/00 (2006.01)
Patent
CA 2544886
A method 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 (A) wherein, Ra is SH, SO3H, OH or COOH; Rb is SH, OH or COOH; Rc each independently is H, SH, OH or COOH; Rd each independently is H or COOH; n is 1, 2, 3, 4 or 5; or a salt or an activated form thereof.
La présente invention a trait à un procédé de réduction de la concentration d'un complexe de métaux de transition à partir d'une solution par l'ajout d'un composé d'amélioration de solubilité qui améliore la solubilité dudit complexe dans une deuxième solution et l'extraction de la première solution avec la deuxième solution. Le composé d'amélioration de solubilité est un composé de formule (A), dans laquelle: R?a¿ est SH, SO¿3?H, OH ou COOH; R?b¿ est SH, OH ou COOH; R?c¿ chacun indépendant est H, SH, OH ou COOH; R?d¿ chacun indépendant est H ou COOH; n est 1, 2, 3, 4 or 5 ; ou un sel ou une forme activée de celui-ci.
Brenner Michael
Donsbach Kai
Nicola Thomas
Wirth Thomas
Boehringer Ingelheim International Gmbh
Fetherstonhaugh & Co.
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