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公开(公告)号：US12285747B2
公开(公告)日：2025-04-29
申请号：US18459263
申请日：2023-08-31
Applicant: Harbin Institute of Technology
Inventor： Panpan Wang , Han Wang , Jun Ma , Shiyi Qiu , Junda Yi
Abstract: A method of utilizing humic acid to prepare layered humic acid/manganese oxide composite catalyst and its application, the method includes the steps of: adding sodium hypochlorite, manganese salt and humic acid to a water source, stirring and mixing; then introducing into a filter device having a filter material of manganese and a support medium, and generating a layered humic acid/manganese oxide composite catalyst on a surface of the filter material while directing a continuous water flow of the water source into the filter device with a short empty bed contact time for a short time. The catalyst can be used to effectively remove manganese to maintain an effluent with a Mn2+ concentration of not more than 20 μg/L and to effectively remove heavy metals such as iron, manganese, arsenic, thallium, molybdenum or lead from the water source under neutral, acidic or alkaline conditions with a removal rate of 95% more.
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公开(公告)号：US20250128246A1
公开(公告)日：2025-04-24
申请号：US18682663
申请日：2022-07-05
Applicant: POLYNT S.P.A.
Inventor： Carlotta CORTELLI , Lorenzo GRAZIA , Laura FRATALOCCHI
IPC: B01J35/00 , B01J23/28 , B01J23/847 , B01J37/00 , B01J37/02 , C07D307/83
Abstract: The present invention relates to a catalytic bed for the production of phthalic anhydride by oxidation of o-xylene and/or naphthalene. The catalytic bed comprises at least four layers of vanadium and titanium mixed oxide (VTiO) catalyst, arranged in series with respect to the flow of a gaseous feed mixture comprising o-xylene and/or naphthalene and an oxygen-containing gas, where the chemical composition and the height of the four layers of catalyst are optimized to improve the catalytic performance and their lifetime. The present invention also relates to a process for the production of phthalic anhydride by oxidation of o-xylene and/or naphthalene, which uses the above catalytic bed.
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公开(公告)号：US20250128244A1
公开(公告)日：2025-04-24
申请号：US18824660
申请日：2024-09-04
Applicant: Haldor Topsoe A/S
IPC: B01J23/78 , B01J23/00 , B01J23/58 , B01J35/00 , B01J35/30 , B01J35/51 , B01J35/61 , B01J35/63 , B01J37/02 , C01B3/40
Abstract: A process for producing a catalyst, comprising the steps of modifying a carrier by a first impregnation with at least one alkaline earth metal in a first metal precursor solution, the first metal precursor being decomposed to form at least one metal oxide or metal hydroxide, thereby obtaining a modified carrier. A second impregnation is carried out by incipient wetness by a second precursor solution comprising at least one metal Me in a second solution. Finally, the second precursor is decomposed, thereby obtaining a catalyst body having an enrichment of the at least one metal Me in the outer shell of the catalyst body, the metal being present in a concentration having either as an egg-shell profile or a hammock profile.
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公开(公告)号：US20250108360A1
公开(公告)日：2025-04-03
申请号：US18480230
申请日：2023-10-03
Applicant: Southwest Research Institute
Inventor： Grant S. SEUSER , Gary JACOBS
Abstract: A catalyst and method of reducing carbon dioxide to carbon monoxide via a reverse water gas shift reaction. The catalyst comprises Group 1A alkali metal doping of a metal-containing partially reduced metal (IV) oxide. Such catalyst selectively hydrogenates carbon dioxide to carbon monoxide at relatively low temperatures with a selectivity that reduces or avoids carbon dioxide conversion into hydrocarbons such as methane.
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公开(公告)号：US20250099945A1
公开(公告)日：2025-03-27
申请号：US18731307
申请日：2024-06-02
Inventor： YING LI , HUA MIN , DONGSHENG JIA , MITANG WANG , DONGLIANG ZHANG
IPC: B01J27/04 , B01J6/00 , B01J23/50 , B01J23/83 , B01J35/00 , B01J35/39 , B01J37/06 , B01J37/08 , B01J37/34 , C02F1/30 , C02F101/30 , C02F103/30
Abstract: Preparation method of a lanthanum ferrite/silver/zinc indium sulfide composite photocatalyst. Includes following steps: dissolving citric acid, an iron-containing compound, and a lanthanum-containing compound in a first dispersant to obtain a first solution; carrying out a hydrothermal reaction on the first solution, prior to washing and drying sequentially, to obtain a first dried sample; calcining the first dried sample to obtain a lanthanum ferrite sample; adding deionized water and a silver nitrate solution in the lanthanum ferrite sample, prior to irradiation under a xenon lamp, and then washing and drying, to obtain a second dried sample; dissolving the second dried sample, zinc chloride, thioacetamide, and indium chloride in a second dispersant to obtain a second solution; and carrying out a hydrothermal reaction on the second solution, prior to washing and drying sequentially to obtain a lanthanum ferrite/silver/zinc indium sulfide composite photocatalyst, which can increase an absorption rate of visible light.
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Patent Agency Ranking
公开(公告)号：US20250091041A1
公开(公告)日：2025-03-20
申请号：US18470913
申请日：2023-09-20
Applicant: Imam Abdulrahman Bin Faisal University
IPC: B01J31/26 , B01J23/52 , B01J31/02 , B01J35/00 , B01J35/02 , B01J35/10 , B01J37/02 , B01J37/04 , C07C33/22
Abstract: A nanohybrid material includes a plurality of gold nanohybrid particles having formula (I). The gold nanohybrid particles have a gold nanoparticle (AuNPs) core and a shell of at least one fatty acid derivative at least partially disposed around the AuNPs core. The AuNPs core has a cuboidal shape and an average particle size of 20 to 60 nanometers (nm). Each R1, and R2 are independently selected from the group consisting of a hydrgon atom, and a fatty acid hydrocarbon chain having 16 to 22 carbon atoms. R3 is selected from the group consisting of a hydrogen atom, an alkyl, an alkoxy, an optionally substituted alkoxy having 1 to 10 carbon atoms, and an optionally substituted alkoxyalky.
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公开(公告)号：US20250066406A1
公开(公告)日：2025-02-27
申请号：US18676542
申请日：2024-05-29
Applicant: Zhejiang Huangma Technology Co., Ltd. , Zhejiang Lukean Chemical Co., Ltd. , ZHEJIANG HUANGMA CHEMICAL NEW POLYMER MATERIAL CO., LTD. , Zhejiang Huangma Shangyi New Material Co., Ltd.
Inventor： Weisong Wang , Jiang Yu , Majishi Wang , Yifeng Jin
Abstract: The present invention provides a methyl fructoside polyether amine, a preparation method therefor and use thereof, According to the methyl fructoside polyether amine, as a derivative of an alkyl glycoside, provided by the present invention, polyoxyethylene or polyoxypropylene chain links are introduced on the basis of retaining the advantages of safety, no toxicity, no irritation to skin, good biodegradability, good compatibility and the like of the alkyl glycoside, so that the water solubility, flowability and hard water resistance of a product are improved. The methyl fructoside polyether amine has a more excellent emulsifying property, meets the requirements of “green” and “environmental protection”, can be used as an emulsifier, a detergent, a foaming agent, a humectant, a thickening agent, a wetting agent, a dispersing agent, a penetrating agent and the like, and is widely used in the daily chemical industry, especially in the field of detergents.
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公开(公告)号：US20250042869A1
公开(公告)日：2025-02-06
申请号：US18577187
申请日：2022-07-05
Applicant: Archer-Daniels-Midland Company
Inventor： Chi-Cheng MA , Emily Nehrkorn , Kenneth F. Stensrud , Erik Hagberg , William C. Hoffman
IPC: C07D307/68 , B01J23/14 , B01J35/00
Abstract: An improved process and catalyst are provided for making an FDCA diester monomer product with improved productivity compared to an autocatalyzed esterification but with comparable or at least not greatly diminished color properties compared to the FDCA diester monomer product that would be produced autocatalytically, wherein a heterogeneous tin (II) catalyst is employed to make an esterification product comprising a diester of FDCA with an alcohol, the catalyst being in either a bulk, unsupported form or in the form of a supported tin (II) catalyst, in particular, using a hygroscopic support such as a gamma alumina, a zeolite or a silica, or using a carbon support.
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公开(公告)号：US20250041839A1
公开(公告)日：2025-02-06
申请号：US18696432
申请日：2022-09-30
Applicant: UMICORE AG & CO. KG
Inventor： Jan SCHOENHABER , Gabriela KUCEROVA , Naina DEIBEL , Meike Antonia GOTTHARDT
Abstract: The invention relates to a wall flow filter for removing particulate matter from the exhaust of internal combustion engines, comprising a wall flow filter substrate having a length L, and a coating F, the wall flow filter substrate being provided with channels E and A which run parallel between a first end and a second end of the wall flow filter substrate, separated by porous walls, and forming surfaces OE and OA. Channels OE are closed at the second end and channels A are closed at the first end. Coating F is disposed in the porous walls and/or on surfaces OE, but not on surfaces OA, and comprises a particulate metal compound and no precious metal, characterised in that the particulate metal compound catalyses the oxidation of soot.
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公开(公告)号：US20250041801A1
公开(公告)日：2025-02-06
申请号：US18633716
申请日：2024-04-12
Applicant: Umicore AG & Co. KG
Inventor： Mattia Sist , Anders Gustaf Widd , Kenneth Malmstroem Larsen , Peter Sams Hammershoei , Leen Van Tendeloo
Abstract: The present invention discloses emissions treatment systems for the removal of NOx from exhaust combustion gases comprising, in the following order, from upstream to downstream: a) means for the injection of ammonia or an ammonia precursor solution into the exhaust gas stream, and b) a catalytic device comprising at least one carrier substrate, a material zone A comprising a first V/TiO2 SCR catalytically active composition SCRfirst which comprises at least one oxide of vanadium supported on titanium dioxide, a material zone B comprising a second V/TiO2 SCR catalytically active composition SCRsecond which comprises at least one oxide of vanadium supported on titanium dioxide, wherein the two material zones are affixed to the at least one carrier substrate in such a way that the exhaust gas first comes into contact with material zone A and then with material zone B, and wherein the ratio Vfirst:Vsecond of the percentages of vanadium contained in the first to the second V/TiO2 SCR catalytically active composition, each calculated as V2O5, is from 0.05 to 0.75. Methods for the removal of NOx emissions from exhaust gases of internal combustion engines are also envisaged.
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