Ligands for Removal of Liquid Phase Cations and Methods for Same

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200023347A1





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The invention provides chemical compounds for binding to a liquid phase cation having the formula R1—SO2—S—R2—SH, wherein R1 comprises a support molecule, such as a polymer, and R2 comprises an alkyl. The polymer may be a crosslinked, polystyrene divinylbenzene copolymer having a plurality of pendant benzyl groups to which the —SO2—S—R2—SH ligand is attached. The alkyl group may be ethyl or propyl. The chemical compound may be used to complex cation lead or mercury, in which the cation is complexed with mercapto-sulfur of the thio-sulfonyl moiety and the terminal mercaptan to form a heterocyclic ring-like geometry incorporating the cation. A method for removing cations from a liquid stream using the chemical compounds of the present invention is also provided.

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International Classification(s)


Inventor Name Address # of filed Patents Total Citations
Frattini, Paul L Los Altos, US 12 26
Yengoyan, Leon San Jose, US 5 4

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