Patents by Inventor Paul L. Frattini
Paul L. Frattini has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230271853Abstract: The present invention is directed to a ligated metal-organic framework (MOF) for use in removing both anionic and cationic species from a liquid or liquid stream. The present invention also provides methods for placing the MOF on a substrate to form a MOF-containing product that can be used in the removal of certain species from a given fluid. The MOF may be a Zr-based MOF, such as NU-1000, for removal of certain anions, such as oxy-anions, or having an attached thiosulfonyl-thiol (—SO2—S—R2—SH, where R2 is an alkyl group) ligand for complexation with certain cationic species in addition to the anions. The substrate may be any substrate to which a given MOF may be attached, including inert polypropylene polymer resin beads, a macroscopic fabric such as a mesh material or mesh filter, and a molecular fabric.Type: ApplicationFiled: May 9, 2023Publication date: August 31, 2023Inventors: Paul L. Frattini, Daniel M. Wells, Ashlee J. Howarth, Christopher James Copeman, Keith Paul Fruzzetti
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Patent number: 11667548Abstract: The present invention is directed to a ligated metal-organic framework (MOF) for use in removing both anionic and cationic species from a liquid or liquid stream. The present invention also provides methods for placing the MOF on a substrate to form a MOF-containing product that can be used in the removal of certain species from a given fluid. The MOF may be a Zr-based MOF, such as NU-1000, for removal of certain anions, such as oxy-anions, or having an attached thiosulfonyl-thiol (—SO2—S—R2—SH, where R2 is an alkyl group) ligand for complexation with certain cationic species in addition to the anions. The substrate may be any substrate to which a given MOF may be attached, including inert polypropylene polymer resin beads, a macroscopic fabric such as a mesh material or mesh filter, and a molecular fabric.Type: GrantFiled: October 5, 2021Date of Patent: June 6, 2023Assignee: Electric Power Research Institute, Inc.Inventors: Paul L. Frattini, Keith Paul Fruzzetti
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Publication number: 20220258127Abstract: The present invention provides for the use of a metal-organic framework (MOF) in removing particular chemical species or compounds, in particular oxy-anions of iodate, from a liquid or liquid stream. In some embodiments, the MOF is a Zr-based MOF, such as NU-1000 or MOF-808. The Zr-based MOF, including NU-1000 or MOF-808 can be used to remove these oxy-anions from various liquid streams or liquids in industrial processes such as a nuclear and fossil fuel power plants.Type: ApplicationFiled: September 3, 2020Publication date: August 18, 2022Inventors: Paul L. Frattini, Keith Paul Fruzzetti, Ashlee J. Howarth
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Publication number: 20220098060Abstract: The present invention is directed to a ligated metal-organic framework (MOF) for use in removing both anionic and cationic species from a liquid or liquid stream. The present invention also provides methods for placing the MOF on a substrate to form a MOF-containing product that can be used in the removal of certain species from a given fluid. The MOF may be a Zr-based MOF, such as NU-1000, for removal of certain anions, such as oxy-anions, or having an attached thiosulfonyl-thiol (—SO2—S—R2—SH, where R2 is an alkyl group) ligand for complexation with certain cationic species in addition to the anions. The substrate may be any substrate to which a given MOF may be attached, including inert polypropylene polymer resin beads, a macroscopic fabric such as a mesh material or mesh filter, and a molecular fabric.Type: ApplicationFiled: October 5, 2021Publication date: March 31, 2022Inventors: Paul L. Frattini, Keith Paul Fruzzetti
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Patent number: 11168006Abstract: The present invention is directed to a ligated metal-organic framework (MOF) for use in removing both anionic and cationic species from a liquid or liquid stream. The present invention also provides methods for placing the MOF on a substrate to form a MOF-containing product that can be used in the removal of certain species from a given fluid. The MOF may be a Zr-based MOF, such as NU-1000, for removal of certain anions, such as oxy-anions, or having an attached thiosulfonyl-thiol (—SO2—S—R2—SH, where R2 is an alkyl group) ligand for complexation with certain cationic species in addition to the anions. The substrate may be any substrate to which a given MOF may be attached, including inert polypropylene polymer resin beads, a macroscopic fabric such as a mesh material or mesh filter, and a molecular fabric.Type: GrantFiled: August 25, 2019Date of Patent: November 9, 2021Assignee: Electric Power Research Institute, Inc.Inventors: Paul L. Frattini, Keith Paul Fruzzetti
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Patent number: 10773253Abstract: 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.Type: GrantFiled: July 23, 2018Date of Patent: September 15, 2020Assignee: San Jose State University Research FoundationInventors: Paul L. Frattini, Leon Yengoyan
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Patent number: 10723635Abstract: The present invention provides for the use of a metal-organic framework (MOF) in removing particular chemical species or compounds, in particular oxy-anions, from a liquid or liquid stream. In some embodiments, the MOF is a Zr-based MOF, such as NU-1000, and the oxy-anions that are removed include, include, for example, oxy-anions of selenium, including selenite (SeO32?) and selenate (SeO42?); oxy-anions of antimony, including oxy-anions in either the Sb[III] (antimonite) or the Sb[V] (antimonate) redox state; and oxy-anions of lead, including oxy-anions in either the Pb[II] or the Pb[IV] redox state, such as Pb(OH)62?, Pb(OH)64?, PbO32?, and PbO22?. The Zr-based MOF, including NU-1000 can be used to remove these oxy-anions from various liquid streams in industrial processes such as a nuclear and fossil fuel power plants, including the latter's flue gas desulfurization system.Type: GrantFiled: October 18, 2017Date of Patent: July 28, 2020Assignee: Northwestern UniversityInventors: Daniel M. Wells, Paul L. Frattini, Keith Paul Fruzzetti, Omar Farha, Joseph T. Hupp, Ashlee J. Howarth, Michael J. Katz
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Publication number: 20200109068Abstract: The present invention is directed to a ligated metal-organic framework (MOF) for use in removing both anionic and cationic species from a liquid or liquid stream. The present invention also provides methods for placing the MOF on a substrate to form a MOF-containing product that can be used in the removal of certain species from a given fluid. The MOF may be a Zr-based MOF, such as NU-1000, for removal of certain anions, such as oxy-anions, or having an attached thiosulfonyl-thiol (—SO2—S—R2—SH, where R2 is an alkyl group) ligand for complexation with certain cationic species in addition to the anions. The substrate may be any substrate to which a given MOF may be attached, including inert polypropylene polymer resin beads, a macroscopic fabric such as a mesh material or mesh filter, and a molecular fabric.Type: ApplicationFiled: August 25, 2019Publication date: April 9, 2020Inventors: Paul L. Frattini, Keith Paul Fruzzetti
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Publication number: 20200023347Abstract: 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.Type: ApplicationFiled: July 23, 2018Publication date: January 23, 2020Inventors: Paul L. Frattini, Leon Yengoyan
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Patent number: 10308527Abstract: The present invention provides a metal-organic framework (MOF) for use in removing particular chemical species or compounds from a liquid. In particular, the present invention provides an MOF having a molecular formula of Zr6(?3-O)4(?3OH)4(OH)4(H2O)4(TBAPy)2, wherein TBAPy is 1,3,6,8-tetrakis (p-benzoic-acid)pyrene, (known as NU-1000) for use in complexing selenate or selenite from a liquid or liquid stream. Further, the selenium based oxy-anions are removed to concentrations below that specified for wastewater discharge by the U.S. Environmental Protection Agency for flue gas desulfurization operations in the fossil fueled electric power generation industry. Such water treatment results are achieved even in the presence of competing sulfate anion challenges and at elevated temperatures comparable to condensate cooling water.Type: GrantFiled: April 8, 2016Date of Patent: June 4, 2019Assignee: Northwestern UniversityInventors: Daniel Morgan Wells, Paul L. Frattini, Keith Paul Fruzzetti, Omar Farha, Joseph T. Hupp, Ashlee J. Howarth, Michael J. Katz
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Publication number: 20180134581Abstract: The present invention provides for the use of a metal-organic framework (MOF) in removing particular chemical species or compounds, in particular oxy-anions, from a liquid or liquid stream. In some embodiments, the MOF is a Zr-based MOF, such as NU-1000, and the oxy-anions that are removed include, include, for example, oxy-anions of selenium, including selenite (SeO32?) and selenate (SeO42?); oxy-anions of antimony, including oxy-anions in either the Sb[III] (antimonite) or the Sb[V] (antimonate) redox state; and oxy-anions of lead, including oxy-anions in either the Pb[II] or the Pb[IV] redox state, such as Pb(OH)62?, Pb(OH)64?, PbO32?, and PbO22?. The Zr-based MOF, including NU-1000 can be used to remove these oxy-anions from various liquid streams in industrial processes such as a nuclear and fossil fuel power plants, including the latter's flue gas desulfurization system.Type: ApplicationFiled: October 18, 2017Publication date: May 17, 2018Applicant: Northwestern UniversityInventors: Daniel M. Wells, Paul L. Frattini, Keith Paul Fruzzetti, Omar Farha, Joseph T. Hupp, Ashlee J. Howarth, Michael J. Katz
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Patent number: 9589690Abstract: A method for the cleanup of ionic species such as cobalt and nickel in nuclear power plant aqueous streams using a sequestration resin material is disclosed herein. The method includes the steps of providing a sequestration resin for removal of radioisotopes of transition metal impurities contained in the plant process streams, and distributing the sequestration resin into the plant process streams such that the sequestration resin interacts with the process streams and removes the transition metal impurities.Type: GrantFiled: November 23, 2011Date of Patent: March 7, 2017Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Richard Herbert Kohlmann, Daniel Morgan Wells
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Publication number: 20160318773Abstract: The present invention provides a metal-organic framework (MOF) for use in removing particular chemical species or compounds from a liquid. In particular, the present invention provides an MOF having a molecular formula of Zr6(?3-O)4(?3OH)4(OH)4(H2O)4(TBAPy)2, wherein TBAPy is 1,3,6,8-tetrakis (p-benzoic-acid)pyrene, (known as NU-1000) for use in complexing selenate or selenite from a liquid or liquid stream. Further, the selenium based oxy-anions are removed to concentrations below that specified for wastewater discharge by the U.S. Environmental Protection Agency for flue gas desulfurization operations in the fossil fueled electric power generation industry. Such water treatment results are achieved even in the presence of competing sulfate anion challenges and at elevated temperatures comparable to condensate cooling water.Type: ApplicationFiled: April 8, 2016Publication date: November 3, 2016Applicant: Northwestern UniversityInventors: Daniel Morgan Wells, Paul L. Frattini, Keith Paul Fruzzetti, Omar Farha, Joseph T. Hupp, Ashlee J. Howarth, Michael J. Katz
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Publication number: 20160118153Abstract: A method of capturing radioactive species from an aqueous solution and removing the radioactive species for disposal, includes: contacting the aqueous solution with a first sequestration resin comprising a sequestration ligand coupled to a sulfonic acid based polymer resin backbone, to allow the first sequestration resin to capture the radioactive species; removing the first sequestration resin with the captured radioactive species from the aqueous solution; and using an acid to lower a pH of the first sequestration resin to release the radioactive species from the first sequestration resin.Type: ApplicationFiled: November 9, 2015Publication date: April 28, 2016Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Leon Yengoyan, Lisa Maxine Edwards
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Patent number: 9214248Abstract: The present invention relates to a method of capturing radioactive species in an aqueous solution and removing the radioactive species for disposal. The method includes the steps of providing a macroporous bead form sequestration resin including a sequestration ligand coupled to a sulfonic acid based polymer resin, subjecting the bead form sequestration resin to radioactive species contained in the aqueous solution to allow the bead form sequestration resin to capture the radioactive species; using an acid to lower a pH of the resin to release the radioactive species; and disposing the radioactive species in a radioactive storage facility.Type: GrantFiled: November 23, 2011Date of Patent: December 15, 2015Assignee: Electric Power Research Institute, Inc.Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Leon Yengoyan, Lisa Maxine Edwards
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Publication number: 20150141537Abstract: A sequestration resin for nuclear reactor coolant cleanup and for aqueous liquid radioactive waste cleanup that can irreversibly remove cobalt ion during reactor operation or during radioactive waste processing so as to deplete the coolant or liquid of a significant fraction of dose-causing radiocobalt is disclosed. The sequestration resin is configured to remove cobalt derived radioactivity in aqueous solutions and includes a sulfonic acid based polymer resin covalently coupled to an amine based ligand by a sulfonamide linkage. Alternatively, the sequestration resin includes a sulfonic acid based polymer resin ionically coupled to an amine based ligand that is altered at one terminus to contain a positively charged quaternary ammonium group.Type: ApplicationFiled: January 30, 2015Publication date: May 21, 2015Inventors: Leon Yengoyan, Paul L. Frattini, Daniel M. Wells
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Patent number: 8975340Abstract: An organic synthesis of materials to achieve removal of low molecular weight ionic species, such as transition metal ions including cobalt, iron, nickel, and zinc, from aqueous solutions. The synthesis includes the steps of providing a cation exchange resin, functionalizing the cation exchange resin using a chloride intermediate to form a sulfonyl chloride resin, and reacting a multi-amine based ligand with the sulfonyl chloride resin to form a sequestration resin. The synthesis further includes the steps of cooling the sequestration resin, and washing and drying the sequestration resin.Type: GrantFiled: November 23, 2011Date of Patent: March 10, 2015Assignee: Electric Power Research Institute, Inc.Inventors: Leon Yengoyan, Paul L. Frattini, Daniel Morgan Wells
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Publication number: 20120183115Abstract: A method for the cleanup of ionic species such as cobalt and nickel in nuclear power plant aqueous streams using a sequestration resin material is disclosed herein. The method includes the steps of providing a sequestration resin for removal of radioisotopes of transition metal impurities contained in the plant process streams, and distributing the sequestration resin into the plant process streams such that the sequestration resin interacts with the process streams and removes the transition metal impurities.Type: ApplicationFiled: November 23, 2011Publication date: July 19, 2012Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Richard Herbert Kohlmann, Daniel Morgan Wells
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Publication number: 20120184796Abstract: The present invention relates to a method of capturing radioactive species in an aqueous solution and removing the radioactive species for disposal. The method includes the steps of providing a macroporous bead form sequestration resin, subjecting the bead form sequestration resin to radioactive species contained in the aqueous solution to allow the bead form sequestration resin to capture the radioactive species; and disposing the radioactive species in a radioactive storage facility.Type: ApplicationFiled: November 23, 2011Publication date: July 19, 2012Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Leon Yengoyan, Lisa Maxine Edwards
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Publication number: 20120157556Abstract: An organic synthesis of materials to achieve removal of low molecular weight ionic species, such as transition metal ions including cobalt, iron, nickel, and zinc, from aqueous solutions. The synthesis includes the steps of providing a cation exchange resin, functionalizing the cation exchange resin using a chloride intermediate to form a sulfonyl chloride resin, and reacting a multi-amine based ligand with the sulfonyl chloride resin to form a sequestration resin. The synthesis further includes the steps of cooling the sequestration resin, and washing and drying the sequestration resin.Type: ApplicationFiled: November 23, 2011Publication date: June 21, 2012Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.Inventors: Leon Yengoyan, Paul L. Frattini, Daniel Morgan Wells