The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2009
Filed:
Sep. 30, 2004
Charles E. Mckenna, Pacific Palisades, CA (US);
Boris a Kashemirov, Los Angeles, CA (US);
Isabelle Favier, St. Thibault des Vignes, FR;
Thomas D. Wolfe, Rough & Ready, CA (US);
Charles E. McKenna, Pacific Palisades, CA (US);
Boris A Kashemirov, Los Angeles, CA (US);
Isabelle Favier, St. Thibault des Vignes, FR;
Thomas D. Wolfe, Rough & Ready, CA (US);
The University of Southern California, Los Angeles, CA (US);
Abstract
The present invention provides for Troika acids attached to a macroporous resin and Methods of preparing the same, including direct attachment of a Troika acid, and attachment of a Troika acid precursor followed by generation of the Troika acid in situ. Methods of functionalizing a resin to facilitate attachment are also described. Multiple Troika acids, comprising a pair of Troika acids joined together are described. Synthetic routes to both microporous and macroporous resins modified by introduction of a suitable Troika-type acid have been designed and validated. In a preferred embodiment, a macroporous Troika resin removes Cuand Nifrom aqueous solution with high affinity, and is selective against Mgor Ca. The materials of the present invention have advantages for metal removal from power plant waste water.