公开(公告)号：US20240308949A1

公开(公告)日：2024-09-19

申请号：US18257654

申请日：2021-12-02

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Jing L. Houser ,  Dmitry A. Krapchetov

IPC: C07C51/25 ,  B01J21/04 ,  B01J21/06 ,  B01J23/06 ,  B01J23/10 ,  B01J23/52 ,  B01J23/66

CPC classification number: C07C51/252 ,  B01J21/04 ,  B01J21/063 ,  B01J21/066 ,  B01J23/06 ,  B01J23/10 ,  B01J23/52 ,  B01J23/66

Abstract: A method for preparing methacrylic acid from methacrolein. The method comprises contacting a liquid mixture comprising methacrolein and water in the presence of oxygen with a heterogeneous catalyst comprising a support and gold; wherein the support comprises an oxide selected from γ-, δ-, or θ-alumina, magnesia, titania, zirconia, hafnia, vanadia, niobium oxide, tantalum oxide, ceria, yttria, lanthanum oxide, zinc oxide or a combination thereof.

公开(公告)号：US20230294079A1

公开(公告)日：2023-09-21

申请号：US18315223

申请日：2023-05-10

Applicant: NAJRAN UNIVERSITY

Inventor： Mabkhoot ALSAIARI ,  Mohd FAISAL ,  Md. A. RASHED ,  Farid A. HARRAZ

IPC: B01J23/66 ,  B01J35/00 ,  B01J37/34 ,  B01J37/08 ,  B01J21/18

CPC classification number: B01J23/66 ,  B01J35/004 ,  B01J37/345 ,  B01J37/08 ,  B01J21/18 ,  B01J35/0013

Abstract: A nanocomposite photocatalyst is provided. The nanocomposite photocatalyst contains a carbon nanomaterial made of amorphous carbon and graphitic carbon, metal oxide nanoparticles disposed on the carbon nanomaterial, and noble metal nanoparticles disposed on the metal oxide nanoparticles and/or the carbon nanomaterial. Also provided is a method of forming the nanocomposite photocatalyst and a method of photodegrading an organic pollutant in water using the nanocomposite photocatalyst and visible light irradiation.

公开(公告)号：US20230129337A1

公开(公告)日：2023-04-27

申请号：US17539021

申请日：2021-11-30

Applicant: CHEOMDANLAB INC.

Inventor： Byeong Hoon LEE ,  Byeong-Yun OH ,  Kyung-Im SHIN ,  In Ha SEO ,  Kyoung Sun JUNG ,  Jae Won JANG ,  Jun Sub AN ,  Tae Jun KIM ,  Yong Hyun CHO ,  Ha Jun JANG

IPC: B01J23/66 ,  B01J21/06 ,  B01J35/00 ,  B01J35/02 ,  B01J37/04 ,  B01J37/08 ,  B01J37/00

Abstract: This application relates to silver-titanium oxide complex particles. In one aspect, the silver-titanium oxide complex particles include a plurality of titanium oxide nanoparticles aggregated with each other. The silver-titanium oxide complex particles may also include a silver component bonded on the surface of the titanium oxide nanoparticles, and have an energy band gap of 3.1 eV or less. According to various embodiments, the silver-titanium oxide complex particles show excellent optical characteristics.

公开(公告)号：US11452993B2

公开(公告)日：2022-09-27

申请号：US15772586

申请日：2016-10-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Ulrich Kortz ,  Yixian Xiang ,  Zhengguo Lin ,  Peng Yang ,  Helge Jaensch ,  Wassim W. Ayass

IPC: B01J23/66 ,  B01J21/08 ,  C01G55/00 ,  B01J23/68 ,  B01J35/00 ,  B01J23/50 ,  B01J35/02 ,  B01J37/02 ,  B01J37/04 ,  B01J37/16 ,  B01J37/34 ,  C07C5/10

Abstract: The invention relates to polyoxometalates represented by the formula (An)m+{M′s[M″M12X8OyRzHq]}m− or solvates thereof, corresponding supported polyoxometalates, and processes for their preparation, as well as corresponding metal-clusters, optionally in the form of a dispersion in a liquid carrier medium or immobilized on a solid support, and processes for their preparation, as well as their use in reductive conversion of organic substrate.

公开(公告)号：US20210040018A1

公开(公告)日：2021-02-11

申请号：US16977601

申请日：2019-03-08

Applicant: NOVA Chemicals (International) S.A.

Inventor： David Gent ,  Shahin Goodarznia ,  Vasily Simanzhenkov ,  Kamal Serhal ,  Claire Ennis ,  Robert Ladd

IPC: C07C5/48 ,  C07C67/05 ,  C07C5/09 ,  B01J19/24 ,  B01J23/656 ,  C08F10/02 ,  B01J23/66 ,  B01J21/08 ,  B01J23/83 ,  B01J23/34 ,  B01J23/26

Abstract: A method that includes (a) providing a stream containing ethane and oxygen to an ODH reactor; (b) converting a portion of the ethane to ethylene and acetic acid in the ODH reactor to provide a stream containing ethane, ethylene, acetic acid, oxygen and carbon monoxide; (c) separating a portion of the acetic acid from the stream to provide an acetic acid stream and a stream containing ethane, ethylene, oxygen and carbon monoxide; (d) providing the stream to a CO Oxidation Reactor containing a catalyst that includes a group 11 metal to convert carbon monoxide to carbon dioxide and reacting acetylene to produce a stream containing ethane, ethylene and carbon dioxide; and (e) providing a portion of the stream and a portion of the acetic acid stream to a third reactor containing a catalyst that includes a metal selected from group 10 and group 11 metals to produce vinyl acetate.

公开(公告)号：US20200346193A1

公开(公告)日：2020-11-05

申请号：US16931677

申请日：2020-07-17

Applicant: Lyondell Chemical Technology, L.P.

Inventor： Sandor Nagy ,  Barbara Kimmich

IPC: B01J23/66 ,  C07D301/03 ,  B01J23/50 ,  B01J21/16 ,  B01J35/00 ,  B01J37/02 ,  B01J37/08 ,  C07D301/10 ,  B01J23/68

Abstract: Epoxidation methods and catalyst are described herein. The epoxidation catalysts generally include a metal component including silver and a support material including kaolinite, wherein the epoxidation catalyst includes less than 55 wt. % metal component.

公开(公告)号：US20200094237A1

公开(公告)日：2020-03-26

申请号：US16620193

申请日：2018-06-14

Applicant: N.E. CHEMCAT CORPORATION

Inventor： Takayuki MIYAJI ,  Hayato MIYAZAKI

IPC: B01J37/02 ,  B01J35/10 ,  B01J35/08 ,  B01J21/08 ,  B01J37/03 ,  B01J37/18 ,  B01J37/08 ,  B01J23/66 ,  C07C67/055 ,  B01J35/02

Abstract: The present invention provides a technique capable of adjusting the loading positions of gold and palladium in a VAM catalyst by a method of producing a palladium-gold loaded catalyst for vinyl acetate synthesis. The method includes a step of impregnating a spherical porous molded carrier of an inorganic oxide with a mixed aqueous solution containing a palladium precursor as a catalytically active species and a gold precursor as a co-catalyst component, and subsequently impregnating the resultant spherical porous molded carrier with an aqueous alkaline solution to water-insolubilize the palladium precursor and the gold precursor in the spherical porous molded carrier to obtain a palladium-gold immobilized spherical porous molded carrier; and a subsequent step of adjusting the moisture content of the palladium-gold immobilized spherical porous molded carrier.

公开(公告)号：US10544619B2

公开(公告)日：2020-01-28

申请号：US15431133

申请日：2017-02-13

Applicant: David R. Hall ,  Terrece Pearman ,  Emily Brimhall

Inventor： David R. Hall ,  Terrece Pearman ,  Emily Brimhall

IPC: E06B9/386 ,  E06B9/322 ,  E06B9/323 ,  B01J35/00 ,  B08B7/00 ,  B01J23/14 ,  B01J27/24 ,  B01J37/02 ,  B01J23/835 ,  B01J23/66 ,  B01J23/80 ,  B01J23/34 ,  B01J23/30 ,  B01J23/26 ,  B01J23/06 ,  B01J21/06 ,  E06B9/24

Abstract: A self-cleaning window blind includes a thin layer of photocatalytic material on at least one surface of the slats. The window blind includes an ultraviolet light source which directs ultraviolet light onto the photocatalytic material. Consequently, the window blind is not dependent on available sunlight. The ultraviolet light source is located in either the headrail or the bottom rail of the window blinds. Upon exposure to ultraviolet light, organic material on the slats which may include dust, grease, or microorganisms, is converted to carbon dioxide and water. One or both of the horizontal edges of the slats may include a lip which collects water formed by the photocatalytic reaction. In some embodiments, the slats are slightly convex. This shape may inhibit water from collecting in droplets on the slat and help direct the water towards the lip. Consequently, water spots are not created on the slats.

公开(公告)号：US20190329234A1

公开(公告)日：2019-10-31

申请号：US16465707

申请日：2017-11-30

Applicant: BASF Corporation

Inventor： Jeffrrey B. Hoke ,  Oleg Ilinich

IPC: B01J35/06 ,  B01J23/72 ,  B01J23/42 ,  B01J23/86 ,  B01J21/02 ,  B01J29/70 ,  B01J35/00 ,  B01J35/02 ,  B01J23/66 ,  F01N3/20 ,  F01N3/28 ,  B01J37/02 ,  B01J23/44 ,  B01J23/46

Abstract: The invention provides a metal fiber felt including a woven or nonwoven mixture of fibers including a first plurality of core/shell catalytic metal fibers and an optional second plurality of reinforcing fibers, wherein the catalytic metal fibers include a core including a first metal and a shell including a catalytic metal, the catalytic metal being a noble metal, a base metal, or a combination thereof, and wherein the average diameter of the reinforcing fibers, when present, is greater than the average diameter of the catalytic metal fibers. The metal fiber felt is useful in catalytic articles for use in the abatement of pollutants in exhaust gas streams from internal combustion engines and other environmental and/or chemical catalytic processes.

公开(公告)号：US10286359B2

公开(公告)日：2019-05-14

申请号：US14603537

申请日：2015-01-23

Applicant: Johnson Matthey Public Limited Company

Inventor： Andrew Francis Chiffey ,  John Benjamin Goodwin ,  James Leeland ,  Francois Moreau

IPC: B01D53/94 ,  B01J21/12 ,  B01J23/656 ,  B01J23/10 ,  B01J29/70 ,  B01J35/04 ,  B01J37/02 ,  B01J35/00 ,  F01N3/28 ,  B01J37/10 ,  B01J29/74 ,  B01J35/02 ,  B01J37/00 ,  F01N3/10 ,  F01N3/035 ,  B01J23/66 ,  B01J23/34 ,  B01J23/38 ,  B01D53/56 ,  B01J23/42 ,  B01D53/62 ,  B01J23/44 ,  B01D53/72 ,  B01J23/58 ,  B01J23/63 ,  B01D53/92 ,  B01J29/40 ,  B01J23/02 ,  B01J37/08

Abstract: An oxidation catalyst for treating an exhaust gas from a diesel engine, which oxidation catalyst comprises: a first washcoat region comprising platinum (Pt), manganese (Mn) and a first support material; a second washcoat region comprising a platinum group metal (PGM) and a second support material; and a substrate having an inlet end and an outlet end; wherein the second washcoat region is arranged to contact the exhaust gas at the outlet end of the substrate and after contact of the exhaust gas with the first washcoat region.