公开(公告)号：US20240335828A1

公开(公告)日：2024-10-10

申请号：US18746663

申请日：2024-06-18

Applicant: PetroChina Company Limited

Inventor： Shurong NI ,  Xianjun WU ,  Gang WANG ,  Endong XIA ,  Famin SUN ,  Zidong WANG ,  Yu LIANG ,  Hongyu TIAN ,  Ruifeng LI

IPC: B01J37/04 ,  B01J21/04 ,  B01J23/80 ,  B01J37/08 ,  C07C29/141

CPC classification number: B01J37/04 ,  B01J21/04 ,  B01J23/80 ,  B01J37/08 ,  C07C29/141

Abstract: A gas-phase aldehyde hydrogenation catalyst, a preparation method thereof and an application thereof, where the preparation method includes: mixing an aluminum salt, a first zinc salt, silica sol, a first precipitant and water, and performing a first aging treatment to obtain a first mixed solution; mixing a copper salt, a second zinc salt, a zinc powder and water, and performing an ultrasonic treatment to obtain a second mixed solution; mixing the first mixed solution, the second mixed solution and a second precipitant, and performing a second aging treatment to obtain a third mixed solution; adding boric acid into the third mixed solution, and performing a third aging treatment to obtain a fourth mixed solution; filtering the fourth mixed solution, and sequentially drying and roasting the obtained solid product to obtain a catalyst precursor; mixing and molding the catalyst precursor with a graphite to obtain a gas-phase aldehyde hydrogenation catalyst.

公开(公告)号：US12110265B2

公开(公告)日：2024-10-08

申请号：US18113749

申请日：2023-02-24

Applicant: Evonik Operations GmbH

Inventor： Robert Franke ,  Meike Roos ,  Horst-Werner Zanthoff ,  Julia Bauer ,  Christoph Weber ,  Andrea Heinroth ,  Jan Benedikt Metternich

IPC: C07C29/141 ,  B01J21/04 ,  B01J23/72 ,  B01J23/755 ,  B01J35/56

CPC classification number: C07C29/141 ,  B01J21/04 ,  B01J23/72 ,  B01J23/755 ,  B01J35/56 ,  B01J2231/321

Abstract: The present invention relates to a process for producing alcohols by hydrogenation of C4 to C20 aldehydes. The process according to the invention is performed in two consecutive hydrogenation stages, wherein the first hydrogenation stage employs an activated metal catalyst based on a nickel metal foam and the second stage employs a supported catalyst containing a catalytically active component from the group consisting of nickel, copper, chromium and mixtures thereof.

公开(公告)号：US20240300877A1

公开(公告)日：2024-09-12

申请号：US18661567

申请日：2024-05-10

Applicant: ZHEJIANG HUAKANG PHARMACEUTICAL CO., LTD.

Inventor： Mian LI ,  Weidong XU ,  Deshui CHEN ,  Xinping CHENG ,  Chengjun LIAO ,  Qiang WU ,  Wulong YANG ,  Shufang QIN

IPC: C07C29/88 ,  C07C29/141 ,  C07C29/78 ,  C07C29/90 ,  C09B67/20

CPC classification number: C07C29/88 ,  C07C29/141 ,  C07C29/78 ,  C07C29/90 ,  C09B67/006 ,  B01D2311/04

Abstract: The present disclosure provides a method for co-producing a xylitol and a caramel pigment. The method includes: transporting a raw material of a xylose mother liquid in a raw material tank to a filter for filtering impurities to obtain a filtered raw material of the xylose mother liquid, and transporting the filtered raw material of the xylose mother liquid to a nanofiltration membrane device to obtain a decolorized xylose mother liquid; transporting the decolorized xylose mother liquid to a first ion exchange device to obtain an ion exchange liquid; and transporting the ion exchange liquid to a chromatographic separation device and obtaining an extracted liquid and a raffinate liquid; performing a refined hydrogenation process on the extracted liquid through a refined hydrogenation assembly to obtain a crystal xylitol, and performing a browning reaction process on the raffinate liquid through a browning reaction assembly to obtain the caramel pigment.

公开(公告)号：US20240239729A1

公开(公告)日：2024-07-18

申请号：US18558336

申请日：2022-05-03

Applicant: Zsigmond VARGA ,  Shiwen LI ,  Anita BOROWIEC ,  Travis REINE

Inventor： Zsigmond VARGA ,  Shiwen LI ,  Anita BOROWIEC ,  Travis REINE

IPC: C07C29/141 ,  B01J29/70 ,  B01J29/76

CPC classification number: C07C29/141 ,  B01J29/7042 ,  B01J29/7046 ,  B01J29/7096 ,  B01J29/7676 ,  B01J29/7692 ,  B01J2229/18 ,  B01J2229/36 ,  B01J2229/37

Abstract: A feed mixture comprising at least one C3 olefin and/or at least one C4 olefin may be contacted with a zeolite catalyst under oligomerization reaction conditions to form a product mixture comprising a plurality of olefin oligomers comprising C12 and/or C16 olefin oligomers having an average branching index, as measured by gas chromatography, of about 2.2 or less, such as about 1.3 to about 2.0. The olefin oligomers may be contacted with a syngas mixture comprising carbon monoxide and hydrogen in the presence of a hydroformylation catalyst to form a hydroformylation reaction product, which may be subsequently reduced to form a plurality of branched alcohols. The branched alcohols, in turn, may be converted into an amphiphilic compound, such as a plurality of branched alcohol sulfates.

公开(公告)号：US12006279B2

公开(公告)日：2024-06-11

申请号：US18113319

申请日：2023-02-23

Applicant: Evonik Operations GmbH

Inventor： Robert Franke ,  Meike Roos ,  Horst-Werner Zanthoff ,  Julia Bauer ,  Christoph Weber ,  Andrea Heinroth ,  Jan Benedikt Metternich

IPC: C07C29/141 ,  B01J21/02 ,  B01J23/652

CPC classification number: C07C29/141 ,  B01J21/02 ,  B01J23/6525

Abstract: The present invention relates to a process for producing alcohols by hydrogenation of C13 aldehydes. The process according to the invention is performed in two consecutive hydrogenation stages, wherein the first hydrogenation stage employs an activated metal catalyst based on a nickel metal foam and the second stage employs a supported catalyst containing a catalytically active component from the group consisting of nickel, copper, chromium and mixtures thereof.

公开(公告)号：US20240174583A1

公开(公告)日：2024-05-30

申请号：US18550297

申请日：2022-04-06

Applicant: Dow Technology Investments LLC

Inventor： Glenn A. Miller ,  Jin Yang

IPC: C07C29/141

CPC classification number: C07C29/141

Abstract: The present invention relates to processes for the vapor phase hydrogenation of aldehydes. In one embodiment, the process comprises (a) providing a liquid aldehyde stream to a vaporization system to generate a vaporous aldehyde stream in the presence of a weakly basic amine, wherein the weakly basic amine has a normal boiling point that is at least 50 C greater than the normal boiling point of the aldehyde, wherein the weakly basic amine reacts with acidic impurities in the liquid aldehyde stream to form ammonium salt adducts, and wherein the ammonium salt adducts and any excess weakly basic amine are removed as a heavies purge from the vaporization system; (b) combining the vaporous aldehyde stream with a hydrogen stream by either providing a hydrogen stream to the vaporization system, by adding a hydrogen stream to the vaporous aldehyde stream following step (a), or by a combination thereof; (c) providing the combined vaporous aldehyde and hydrogen stream to a vapor phase hydrogenation zone; and (d) hydrogenating the vaporous aldehyde in the vapor phase hydrogenation zone.

公开(公告)号：US20230382830A1

公开(公告)日：2023-11-30

申请号：US18245920

申请日：2021-09-29

Applicant: Zsigmond Varga ,  Sina Sartipi ,  Silvio Carrettin ,  Nele Viggria ,  Hans Goris

Inventor： Zsigmond Varga ,  Sina Sartipi ,  Silvio Carrettin ,  Nele Viggria ,  Hans Goris

IPC: C07C29/141 ,  C07C45/50 ,  C07C5/22

CPC classification number: C07C29/141 ,  C07C45/505 ,  C07C5/222

Abstract: This disclosure relates to a primary alcohol composition of linear and branched C11, C13, C15, C17, C19 or C21 primary alcohols, wherein at least 50% of the branched alcohol chains are mono-branched chains with a branch at the second carbon atom relative to the hydroxyl carbon. Branching is selective and has been found to be preferably at least 80% in the 2-carbon position (the beta carbon) of the alcohol. This disclosure also relates to a process using an isomerized linear alpha olefin (LAO) as a feed for hydroformylation to produce the lightly branched C11, C13, C15, C17, C19 or C21 primary alcohols.

公开(公告)号：US20230278941A1

公开(公告)日：2023-09-07

申请号：US18006970

申请日：2021-07-21

Applicant: DDP SPECIALTY ELECTRONIC MATERIALS US 8, LLC ,  DUPONT SAFETY & CONSTRUCTION, INC.

Inventor： Jose Antonio Trejo ,  Sourav Kumar Sengupta ,  Jonathan M. Bingaman

IPC: C07C29/141 ,  B01D15/36

CPC classification number: C07C29/141 ,  B01D15/361 ,  C07C2523/46

Abstract: A method for reduction of sugars. The first step is providing a solution of a sugar comprising from five to twenty carbon atoms. The second step is contacting said solution with hydrogen gas and a catalyst. The catalyst is an ion exchange resin comprising Ru.

公开(公告)号：US20230192575A1

公开(公告)日：2023-06-22

申请号：US18003441

申请日：2022-05-20

Applicant: SK CHEMICALS CO., LTD.

Inventor： Hee IL CHAE ,  Ju-Sik KANG ,  Jeong Ho PARK ,  Song LEE ,  Yu Mi CHANG

IPC: C07C7/177 ,  C08G63/85 ,  C08G63/16 ,  C07C31/27 ,  C07C45/50 ,  C07C29/141 ,  C07C29/84 ,  B01J23/46 ,  B01J21/18 ,  B01J31/24

CPC classification number: C07C7/177 ,  C08G63/85 ,  C08G63/16 ,  C07C31/278 ,  C07C45/505 ,  C07C29/141 ,  C07C29/84 ,  B01J23/462 ,  B01J21/18 ,  B01J31/24 ,  C07C2603/68

Abstract: Provided are a tricyclodecane dimethanol composition which may be usefully applied to the preparation of a high heat resistant polyester by reducing the content of impurities, and a preparation method thereof.

公开(公告)号：US20230173444A1

公开(公告)日：2023-06-08

申请号：US17997716

申请日：2021-06-02

Applicant: Dow Technology Investments LLC

Inventor： Daniel Grohol ,  David G. Barton

IPC: B01J8/00

CPC classification number: B01J8/0015 ,  B01J2208/00539 ,  C07C29/141

Abstract: The present invention generally relates to processes for reducing the rate of pressure drop increase in a vessel used for hydrogenation of aldehydes to alcohols. In one embodiment, the process comprises replacing a first set of catalyst pellets with a second set of catalyst pellets, wherein the second set of catalyst pellets have a higher average aspect ratio than the first set of catalyst pellets, a different shape than the first set of catalyst pellets, or a combination thereof, and wherein a void fraction of the second set of catalyst pellets is greater than the void fraction of the first set of catalyst pellets, wherein a pressure drop rate increase of the vessel partially filled with the second set of catalyst pellets is less than a pressure drop rate increase of the vessel partially filled with the first set of catalyst pellets when operated under substantially similar conditions.