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公开(公告)号:US20230001391A1
公开(公告)日:2023-01-05
申请号:US17780622
申请日:2020-11-27
发明人: Takashi BABA , Akihiro ISAYAMA
IPC分类号: B01J27/18 , B01J27/185 , B01D53/94 , F01N3/10
摘要: An object of the present invention is to provide an exhaust gas purification catalyst having improved exhaust gas purifying performance (in particular, improved NOx purifying performance) at low to medium temperature, and, in order to achieve the object, the present invention provides an exhaust gas purification catalyst (10A) including: a substrate (20); and a catalyst layer (30 or 40) formed on the substrate (20), wherein the catalyst layer (30 or 40) contains rhodium element, phosphorus element and a rare earth element other than cerium element, wherein a ratio of a mass of the phosphorus element contained in the catalyst layer (30 or 40) to the mass of the rhodium element contained in the catalyst layer (30 or 40) is from 1 to 10, and wherein a ratio of a mass of the rare earth element other than cerium element in terms of an oxide thereof contained in the catalyst layer (30 or 40) to the mass of the rhodium element contained in the catalyst layer (30 or 40) is from 1 to 5.
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公开(公告)号:US20220016606A1
公开(公告)日:2022-01-20
申请号:US17413817
申请日:2019-12-16
摘要: The present invention refers to catalysts that are selective for the reaction of ODH of propane to propene. Said catalysts are potassium salts of the dodecatungstophosphate ion partially substituted with vanadium and niobium, or mixed oxides of W, V, and Nb, with a tungsten bronze structure, obtained by thermal decomposition of polyoxometalate salts with a Keggin structure.
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公开(公告)号:US20210340452A1
公开(公告)日:2021-11-04
申请号:US17379477
申请日:2021-07-19
摘要: The present disclosure relates to a composition that includes a first oxide having a phosphate, a ratio of Brønsted acid sites to Lewis acid sites between 0.05 and 1.00, and a total acidity between 50 μmol/g and 300 μmol/g, where the phosphate is at least one of a functional group covalently bonded to the first oxide and/or an anion ionically bonded to the first oxide.
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公开(公告)号:US11098257B2
公开(公告)日:2021-08-24
申请号:US15930205
申请日:2020-05-12
摘要: The present disclosure relates to a composition that includes a first oxide having a phosphate, a ratio of Brønsted acid sites to Lewis acid sites between 0.05 and 1.00, and a total acidity between 50 μmol/g and 300 μmol/g, where the phosphate is at least one of a functional group covalently bonded to the first oxide and/or an anion ionically bonded to the first oxide.
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公开(公告)号:US11090639B2
公开(公告)日:2021-08-17
申请号:US16871160
申请日:2020-05-11
发明人: Juan Esteban Velasquez , Dimitris Ioannis Collias , Jane Ellen Godlewski , Fred Christian Wireko
IPC分类号: B01J27/195 , B01J27/18 , B01J27/16 , B01J37/04 , B01J37/08 , B01J23/20 , B01J35/02 , B01J37/00 , C07C51/00 , B01J27/186 , B01J27/187 , B01J27/188
摘要: Hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof are dehydrated using a catalyst and a method to produce bio-acrylic acid, acrylic acid derivatives, or mixtures thereof. A method to produce the dehydration catalyst is also provided.
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6.
公开(公告)号:US20210053038A1
公开(公告)日:2021-02-25
申请号:US16636570
申请日:2018-09-28
发明人: Anhui LU , Wencui LI , Qingnan WANG
摘要: Method and catalyst for producing methylbenzyl alcohol from ethanol by catalytic conversion. A route and corresponding catalysts for directly producing methylbenzyl alcohols through catalytic conversion starting from ethanol, providing an important alternative route for increasing the production of aromatic oxygenates. The selectivity of the methylbenzyl alcohols is up to 60%. At the same time, the prepared catalysts have excellent stability. Moreover, this innovative reaction route produces hydrogen as co-product without CO, thus can be directly used in chemical reactions and fuel cells. In addition, the route also produces high carbon number alcohols which can be used as fuels or oil additives to partially replace petroleum-based products, thus partly reducing the dependence on petroleum.
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公开(公告)号:US20200283577A1
公开(公告)日:2020-09-10
申请号:US16881441
申请日:2020-05-22
发明人: Simona Percec , Stephen Neal Bair
摘要: Disclosed herein are processes of making furan-based polyamides using solvent-free melt condensation of a diamine and an ester derivative of 2,5-furandicarboxylic acid with a C2 to C12 aliphatic diol or a polyol. The processes comprise a) forming a reaction mixture by mixing one or more diamines, a diester comprising an ester derivative of 2,5-furandicarboxylic acid with a C2 to C12 aliphatic diol or a polyol, and a catalyst, such that the diamine is present in an excess amount of at least 1 mol % with respect to the diester amount; and b) melt polycondensing the reaction mixture in the absence of a solvent at a temperature in the range of 60° C. to a maximum temperature of 250° C. under an inert atmosphere, while removing alkyl alcohol to form a furan-based polyamide, wherein the one or more diamines comprises an aliphatic diamine, an aromatic diamine, or an alkylaromatic diamine.
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公开(公告)号:US20200247698A1
公开(公告)日:2020-08-06
申请号:US16848026
申请日:2020-04-14
IPC分类号: C02F1/72 , B01J35/00 , B01J27/18 , B01J37/34 , C02F1/30 , B01J37/02 , B01J31/06 , B01J21/18 , B01J20/28 , B01J20/20 , C02F1/00
摘要: A water treatment system with a photocatalytic nanocomposite sheet, an adsorbent layer, and a fibrous filter, wherein the photocatalytic nanocomposite sheet comprises polymethylmethacrylate and silver phosphate, the adsorbent layer comprises plasma activated carbon nanotubes, and the fibrous filter is a composite of polymethylmethacrylate, polyvinylidene fluoride, and polyvinylpyrrolidone polymer fibers, with carbon nanotubes that are dispersed within the polymer fibers and silver nanoparticles that are deposited on the polymer fibers. Various embodiments of the water treatment system and methods of fabricating the photocatalytic nanocomposite sheet, the adsorbent layer, and the fibrous filter are also provided.
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公开(公告)号:US20200172466A1
公开(公告)日:2020-06-04
申请号:US16631945
申请日:2018-07-16
申请人: SHELL OIL COMPANY
发明人: Henri PREISING , Frederik Hendrik VAN DER STEEN , Garo Garbis VAPORCIYAN , Wolfgang Dirk LOSE , Silke Eva Sabine LEONHARDT
摘要: The invention relates to a process for the preparation of an alkanediol and a dialkyl carbonate comprising reacting an alkylene carbonate and an alkanol in the presence of a catalyst, wherein the catalyst is aluminum phosphate.
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公开(公告)号:US20200115231A1
公开(公告)日:2020-04-16
申请号:US16621882
申请日:2018-06-15
申请人: GC Corporation
发明人: Yuki SUGIURA , Kunio ISHIKAWA
IPC分类号: C01B25/32 , B01J20/04 , B01J20/30 , B01J20/28 , B01J27/18 , B01J35/10 , B01J37/04 , B01J37/03
摘要: The present invention provides: a method for producing a shaped product comprising octacalcium phosphate and having a volume of 2.0 mm3 or more, comprising immersing a precursor ceramic composition containing at least one of Ca and PO4 in composition, having a solubility in H2O higher than that of octacalcium phosphate, and having a volume greater than 2.0 mm3, in a solution containing a component which is not contained in the precursor ceramic composition, among the components Ca, PO4 and H2O, which are components of octacalcium phosphate to allow the precursor ceramic composition to react, thereby converting at least a part of the precursor ceramic composition into octacalcium phosphate; and the like.
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