Patents by Inventor Frederick M. MacDonnell
Frederick M. MacDonnell 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: 20230372888Abstract: Disclosed herein are systems for more efficient production of aluminum chlorohydrates, where the systems comprise a support element and/or metal catalyst, where the support element is configured to support the metal reagent in the system. Methods for efficient production of aluminum chlorohydrates are also disclosed.Type: ApplicationFiled: May 8, 2023Publication date: November 23, 2023Inventors: Frederick M. MacDonnell, Brian Dennis, Mark Hulsizer
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Publication number: 20230322573Abstract: In one aspect, methods of producing polyaluminum chlorides are described herein which, in some embodiments, provide increased reaction rates and/or reductions in stoichiometric excesses of aluminum feedstock. In some embodiments, a method of producing polyaluminum chloride comprises providing a feedstock comprising aluminum, contacting the feedstock with a solution comprising hydrochloric acid and one or more transition metal compounds, and catalyzing formation of the polyaluminum chloride with the one or more transition metals. As described further herein, the one or more transition metal compounds can comprise a transition metal coordination complex, transition metal salt, or mixtures thereof.Type: ApplicationFiled: July 30, 2021Publication date: October 12, 2023Inventors: Seyed Amir Jafari GHORESHI, Mohammad Fakrul ISLAM, Wilaiwan CHANMANEE, Brian H. DENNIS, Frederick M. MACDONNELL
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Publication number: 20230202858Abstract: A method of producing aluminum chlorohydrate comprises adding small form aluminum metal pellets to a reactant receiving space of a reactor tank to form a pellet bed; adding aqueous hydrochloric acid to the reactant receiving space of the reactor tank; and continuously circulating the aqueous hydrochloric acid through the pellet bed. In some embodiments, the continuously circulating aqueous hydrochloric acid dispels reaction gases from the pellet bed. Methods described herein can, in some cases, further comprise consecutively adding additional small form aluminum metal pellets to the reactant receiving space of the reactor tank as the small form aluminum metal pellets are consumed in the pellet bed.Type: ApplicationFiled: February 20, 2023Publication date: June 29, 2023Applicants: C-KOE Mentals, L.P., Board of Regents, The University of Texas SystemInventors: Chase McTaggart, Brian Hodges, Charles Koetting, Frederick M. MacDonnell, Brian Dennis, Mark Hulsizer
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Patent number: 11666893Abstract: Described herein are catalysts relating to liquid synthesis, methods of their preparation, and methods of their use. In an embodiment according to the present disclosure, a method of producing a catalyst for liquid synthesis comprises: providing a silica oxide support; pretreating the silica oxide support to remove air and moisture; impregnating the pretreated silica oxide support with cobalt from a cobalt source using a cobalt impregnation method; and calcinating the impregnated silica oxide support in an oven with a temperature ramping profile, wherein the calcinating comprises feeding air into the oven.Type: GrantFiled: August 3, 2021Date of Patent: June 6, 2023Inventors: Frederick M. MacDonnell, Brian H. Dennis
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Patent number: 11583817Abstract: A method of producing aluminum chlorohydrate comprises adding small form aluminum metal pellets to a reactant receiving space of a reactor tank to form a pellet bed; adding aqueous hydrochloric acid to the reactant receiving space of the reactor tank; and continuously circulating the aqueous hydrochloric acid through the pellet bed. In some embodiments, the continuously circulating aqueous hydrochloric acid dispels reaction gases from the pellet bed. Methods described herein can, in some cases, further comprise consecutively adding additional small form aluminum metal pellets to the reactant receiving space of the reactor tank as the small form aluminum metal pellets are consumed in the pellet bed.Type: GrantFiled: March 4, 2019Date of Patent: February 21, 2023Assignees: C-Koe Metals, L.P., The Board of Regents, The University of Texas SystemInventors: Chase McTaggart, Brian Hodges, Charles Koetting, Frederick M. MacDonnell, Brian Dennis, Mark Hulsizer
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Publication number: 20220002154Abstract: In some embodiments, a system for producing synthesis gas, the system including a reactor including a burner, a combustion chamber, and a catalyst chamber, and a mixer upstream of the reactor configured to mix fuel with steam to produce humidified fuel that is provided to the burner of the reactor.Type: ApplicationFiled: October 30, 2019Publication date: January 6, 2022Applicant: Board of Regents of The University of Texas SystemInventors: Brian H. Dennis, Frederick M. MacDonnell
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Publication number: 20210404654Abstract: In one embodiment, a burner for use in synthesis gas production includes multiple burner units each configured to deliver fuel and oxygen to a combustion chamber, each burner unit including an inner outlet pipe configured to deliver fuel and an outer outlet pipe configured to deliver oxygen, the outer outlet pipe concentrically surrounding the inner outlet pipe.Type: ApplicationFiled: October 30, 2019Publication date: December 30, 2021Applicant: Board of Regents of The University of Texas SystemInventors: Brian H. Dennis, Frederick M. MacDonnell
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Patent number: 11110438Abstract: Described herein are catalysts relating to liquid synthesis, methods of their preparation, and methods of their use. In an embodiment according to the present disclosure, a method of producing a catalyst for liquid synthesis comprises: providing a silica oxide support; pretreating the silica oxide support to remove air and moisture; impregnating the pretreated silica oxide support with cobalt from a cobalt source using a cobalt impregnation method; and calcinating the impregnated silica oxide support in an oven with a temperature ramping profile, wherein the calcinating comprises feeding air into the oven.Type: GrantFiled: July 31, 2019Date of Patent: September 7, 2021Inventors: Frederick M. MacDonnell, Brian H. Dennis
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Publication number: 20200398242Abstract: A method of producing aluminum chlorohydrate comprises adding small form aluminum metal pellets to a reactant receiving space of a reactor tank to form a pellet bed; adding aqueous hydrochloric acid to the reactant receiving space of the reactor tank; and continuously circulating the aqueous hydrochloric acid through the pellet bed. In some embodiments, the continuously circulating aqueous hydrochloric acid dispels reaction gases from the pellet bed. Methods described herein can, in some cases, further comprise consecutively adding additional small form aluminum metal pellets to the reactant receiving space of the reactor tank as the small form aluminum metal pellets are consumed in the pellet bed.Type: ApplicationFiled: March 4, 2019Publication date: December 24, 2020Applicants: C-KOE Metals, L.P., Board of Regents, The University of Texas SystemInventors: Mark Hulsizer, Chase McTaggart, Brian Hodges, Charles KOETTING, Frederick M. MacDONNELL, Brian DENNIS
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Publication number: 20200038846Abstract: Described herein are catalysts relating to liquid synthesis, methods of their preparation, and methods of their use. In an embodiment according to the present disclosure, a method of producing a catalyst for liquid synthesis comprises: providing a silica oxide support; pretreating the silica oxide support to remove air and moisture; impregnating the pretreated silica oxide support with cobalt from a cobalt source using a cobalt impregnation method; and calcinating the impregnated silica oxide support in an oven with a temperature ramping profile, wherein the calcinating comprises feeding air into the oven.Type: ApplicationFiled: July 31, 2019Publication date: February 6, 2020Inventors: Frederick M. MacDonnell, Brian H. Dennis
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Patent number: 9816075Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.Type: GrantFiled: November 3, 2014Date of Patent: November 14, 2017Assignee: Board of Regents, The University of Texas SystemInventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awashti
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Patent number: 9580659Abstract: Methods for the conversion of lignites, subbituminous coals and other carbonaceous feedstocks into synthetic oils, including oils with properties similar to light weight sweet crude oil using a solvent derived from hydrogenating oil produced by pyrolyzing lignite are set forth herein. Such methods may be conducted, for example, under mild operating conditions with a low cost stoichiometric co-reagent and/or a disposable conversion agent.Type: GrantFiled: January 12, 2014Date of Patent: February 28, 2017Assignee: The Board of Regents of the University of Texas SystemInventors: Frederick M. MacDonnell, Brian H. Dennis, Richard E. Billo, John W. Priest
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Publication number: 20160040072Abstract: Methods for the conversion of lignites, subbituminous coals and other carbonaceous feedstocks into synthetic oils, including oils with properties similar to light weight sweet crude oil using a solvent derived from hydrogenating oil produced by pyrolyzing lignite are set forth herein. Such methods may be conducted, for example, under mild operating conditions with a low cost stoichiometric co-reagent and/or a disposable conversion agent.Type: ApplicationFiled: January 12, 2014Publication date: February 11, 2016Inventors: Frederick M. MacDonnell, Brian H. Dennis, Richard E. Billo, John W. Priest
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Publication number: 20150152390Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.Type: ApplicationFiled: November 3, 2014Publication date: June 4, 2015Inventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awashti
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Patent number: 8877215Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.Type: GrantFiled: August 1, 2012Date of Patent: November 4, 2014Assignee: Board of Regents, The University of Texas SystemInventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awashti
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Publication number: 20120295880Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.Type: ApplicationFiled: August 1, 2012Publication date: November 22, 2012Applicant: Board of Regents, The University of Texas SystemInventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awashti
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Patent number: 8246967Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.Type: GrantFiled: August 1, 2006Date of Patent: August 21, 2012Inventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awasthi
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Patent number: 5786496Abstract: The present invention provides a new tetradentate bis-amido bis-alkoxo, 1,2-(bis-2,20diphenyl-2-hydroxyethanamido)benzene (H.sub.4 PHAB) and various derivatives thereof. This ligand is able to stabilize high valen metal oxo complexes by providing strong sigma donor ligands and through the use of steric bulk to prevent decomposition via formation of the .mu.-oxo dimers. Disclosed are novel metal oxo structural chemistry and oxidation reactions carried out with the novel metal oxo complexes.Type: GrantFiled: November 15, 1996Date of Patent: July 28, 1998Assignee: Northwestern UniversityInventors: Thomas V. O'Halloran, Frederick M. MacDonnell, Nathanael L. P. Fackler