Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2005-01-18
2005-01-18
Ogden, Necholus (Department: 1751)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C526S288000
Reexamination Certificate
active
06843923
ABSTRACT:
The present invention provides a composition and process using the composition for removing metal ions from aqueous process solutions. These compositions include a non-metallic compound and a suitable carrier. In one embodiment, the non-metallic compound is a thiuram. In another embodiment, the non-metallic compound can further include a dithiocarbamate. These compositions are contacted with the metal ions in the aqueous process solution having a wetting agent to form an organometallic complex precipitate. The precipitate can then be separated from the aqueous solution.
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U.S. Appl. No. 10/211,406, filed Aug. 1, 2002, Inventor: Peter Morton, Title: Compositions for Removing Metal Ions from Aqueous Process Solutions and Methods of Use Thereof.
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Canadus Technologies LLC
Dergosits & Noah LLP
Lee Samuel S.
LandOfFree
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