C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/32 (2006.01) B09C 1/02 (2006.01) C02F 1/68 (2006.01) C02F 9/00 (2006.01) C07C 229/24 (2006.01) C22B 3/28 (2006.01) C22B 3/46 (2006.01) C22B 7/00 (2006.01)
Patent
CA 2332050
The present invention concerns a process for separating a first source of a heavy metal ion or mixtures of heavy metal ions, (Me1), from a solution comprising a complex of said Me1 and ethylenediamine-disuccinic acid (EDDS), (Me1-EDDS), by displacement of said Me1 with a second source of a heavy metal ion Me2 by addition to the solution of a salt of said Me2.
L'invention concerne un procédé permettant de séparer une première source d'ions de métaux lourds ou des mélanges d'ions de métaux lourds (Me¿1?) d'une solution constituée d'un complexe de Me¿1? et d'acide éthylènediamine-disuccinique (Me¿1?-EDDS). Ce procédé consiste à déplacer Me¿1? au moyen d'une seconde source d'ions de métaux lourds Me¿2? en ajoutant un sel de Me¿2? à la solution.
Feijtel Tom Cornelis Jan
Schowanek Diederik Rudolf
Dimock Stratton Llp
The Procter & Gamble Company
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