公开(公告)号：US11773041B2

公开(公告)日：2023-10-03

申请号：US18055989

申请日：2022-11-16

Applicant: Evonik Operations GmbH

Inventor： Frank Geilen ,  Alexander Brächer ,  Stefan Drees ,  Benedikt Dereks ,  Robert Franke ,  Ana Markovic ,  Armin Matthias Rix ,  Martin Oldemeyer ,  Dirk Fridag

IPC: C07C45/50

CPC classification number: C07C45/505 ,  C07C2523/46

Abstract: A process for preparing aldehydes by a homogeneously catalyzed hydroformylation of C4 to C20 olefins involves withdrawing a biphasic stream (liquid/gaseous) and expanding in two stages. Before, between, or after the two stages, the liquid phase is cooled. Only after expansion and cooling is the homogeneously dissolved rhodium catalyst system separated from the residual stream in a three-stage removal.

公开(公告)号：US20220033337A1

公开(公告)日：2022-02-03

申请号：US17371477

申请日：2021-07-09

Applicant: Evonik Operations GmbH

Inventor： Alexander Brächer ,  Johannes Knossalla ,  Dirk Fridag ,  Robert Franke ,  Frederik Gluth ,  Marc Schäpertöns ,  Christoph Kubis ,  Anna Chiara Sale ,  Peter Kucmierczyk ,  Ana Markovic

IPC: C07C45/78 ,  C07C45/50 ,  B01J31/18 ,  B01D71/70 ,  B01D71/52

Abstract: The present invention provides a process for preparing aldehydes from C2 to C20 olefins using a subsequent membrane separation to separate the homogeneously dissolved catalyst system, wherein prior to the membrane separation a gas exchange that increases the partial pressure fraction of carbon monoxide or hydrogen is carried out in order to boost catalyst retention by the membrane.

公开(公告)号：US12006287B2

公开(公告)日：2024-06-11

申请号：US17530720

申请日：2021-11-19

Applicant: EVONIK OPERATIONS GMBH

Inventor： Peter Kucmierczyk ,  Ricarda Dühren ,  Dirk Fridag ,  Johannes Knossalla ,  Anna Chiara Sale ,  Ana Markovic ,  Alexander Brächer ,  Matthias Beller ,  Robert Franke

IPC: C07C67/38 ,  B01J31/02 ,  B01J31/22

CPC classification number: C07C67/38 ,  B01J31/0267 ,  B01J31/2239 ,  B01J2531/0208 ,  B01J2531/824

Abstract: Process for alkoxycarbonylation of ethylenically unsaturated compounds using benzene-based diphosphine ligands and aluminium triflate.

公开(公告)号：US11834399B2

公开(公告)日：2023-12-05

申请号：US18165245

申请日：2023-02-06

Applicant: Evonik Operations GmbH

Inventor： Alexander Brächer ,  Ana Markovic ,  Anna Chiara Sale ,  Dirk Fridag ,  Johannes Knossalla ,  Peter Kucmierczyk ,  Robert Franke

IPC: C07C45/50 ,  B01J31/18 ,  C07C45/77 ,  C07C45/78

CPC classification number: C07C45/77 ,  B01J31/1845 ,  C07C45/786

Abstract: A process can be used for preparing aldehydes from C2 to C20 olefins with a subsequent thermal separation for removal of the aldehyde formed. The process involves a membrane separation, which is preceded by performance of a gas exchange by which the proportion of the partial pressure represented by carbon monoxide or hydrogen is increased in order to reduce catalyst losses.

公开(公告)号：US20230159423A1

公开(公告)日：2023-05-25

申请号：US18055442

申请日：2022-11-15

Applicant: Evonik Operations GmbH

Inventor： Ana MARKOVIC ,  Frank Geilen ,  Alexander Brächer ,  Benedikt Dercks ,  Stefan Drees ,  Tonia Weber ,  Robert Franke ,  Dirk Fridag

IPC: C07C45/50 ,  B01J23/46 ,  B01J27/14 ,  C07C45/62

CPC classification number: C07C45/50 ,  B01J23/464 ,  B01J27/14 ,  C07C45/62

Abstract: A process for preparing aldehydes by a homogeneously catalysed hydroformylation of C4 to C20 olefins involves withdrawing a biphasic stream (liquid/gaseous) and expanding in two stages. Before, between, or after the two stages, the liquid phase is cooled. Only after expansion and cooling is the homogeneously dissolved rhodium catalyst system separated from the residual stream.

公开(公告)号：US11560396B2

公开(公告)日：2023-01-24

申请号：US17718503

申请日：2022-04-12

Applicant: EVONIK OPERATIONS GMBH

Inventor： Robert Franke ,  Anna Chiara Sale ,  Alexander Brächer ,  Dirk Fridag ,  Ana Markovic ,  Peter Kucmierczyk ,  Johannes Knossalla

IPC: C07F9/6574 ,  B01J31/02 ,  B01J31/22 ,  C07C45/50 ,  C07B41/06 ,  C07F15/00

Abstract: Diphosphites having an open and a closed 2,4-methylated outer unit and use thereof in hydroformylation.

公开(公告)号：US11365171B2

公开(公告)日：2022-06-21

申请号：US16893463

申请日：2020-06-05

Applicant: Evonik Operations GmbH

Inventor： Peter Kucmierczyk ,  Robert Franke ,  Dirk Fridag ,  Johannes Knossalla ,  Marc Schäpertöns ,  Frederik Gluth

IPC: C07C67/02 ,  B01D61/24 ,  B01D71/52 ,  B01J23/44 ,  C07C67/31 ,  C07C67/38 ,  C07C67/48

Abstract: The invention relates to a process for preparing an ester by alkoxycarbonylation of a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation and recycled into the reaction zone. In a development of the present invention, the ester thus formed is converted into another ester by transesterification.

公开(公告)号：US11820739B2

公开(公告)日：2023-11-21

申请号：US18055442

申请日：2022-11-15

Applicant: Evonik Operations GmbH

Inventor： Ana Markovic ,  Frank Geilen ,  Alexander Brächer ,  Benedikt Dercks ,  Stefan Drees ,  Tonia Weber ,  Robert Franke ,  Dirk Fridag

IPC: C07C45/50 ,  C07C45/62 ,  B01J23/46 ,  B01J27/14

CPC classification number: C07C45/50 ,  B01J23/464 ,  B01J27/14 ,  C07C45/62

Abstract: A process for preparing aldehydes by a homogeneously catalysed hydroformylation of C4 to C20 olefins involves withdrawing a biphasic stream (liquid/gaseous) and expanding in two stages. Before, between, or after the two stages, the liquid phase is cooled. Only after expansion and cooling is the homogeneously dissolved rhodium catalyst system separated from the residual stream.

公开(公告)号：US11702435B2

公开(公告)日：2023-07-18

申请号：US17696031

申请日：2022-03-16

Applicant: EVONIK OPERATIONS GMBH

Inventor： Anna Chiara Sale ,  Robert Franke ,  Alexander Brächer ,  Dirk Fridag ,  Ana Markovic ,  Peter Kucmierczyk ,  Johannes Knossalla ,  Detlef Selent ,  Amin Borner ,  Kerstin Romeike

IPC: C07F9/6574 ,  C07C45/50

CPC classification number: C07F9/65746

Abstract: Bisphosphite ligands based on benzopinacol, and the use thereof in hydroformylation.

公开(公告)号：US20230192486A1

公开(公告)日：2023-06-22

申请号：US18067687

申请日：2022-12-16

Applicant: Evonik Operations GmbH

Inventor： Robert Franke ,  Peter Kreis ,  Dirk Fridag

IPC: C01B3/50 ,  B01D53/22 ,  C07C51/14

CPC classification number: C01B3/501 ,  B01D53/226 ,  C07C51/14 ,  C01B2203/1258 ,  C01B2203/148 ,  C01B2203/0405 ,  C01B2203/1628 ,  C01B2203/1614 ,  C01B2203/06 ,  C01B2203/047 ,  C01B2203/146

Abstract: A process for providing a carbon monoxide-containing stream involves a separation of synthesis gas into a hydrogen-rich gas stream and a carbon monoxide-rich gas stream containing carbon monoxide to an extent of 85% by volume or more. The separation is effected in an arrangement composed of three membrane separation stages. Prior to the performance of the membrane separation, the synthesis gas is pretreated for removal of secondary components present in the synthesis gas.