公开(公告)号：US12121881B2

公开(公告)日：2024-10-22

申请号：US17285799

申请日：2019-09-19

Applicant: BASF SE

Inventor： Andrey Karpov ,  Marco Oskar Kennema ,  Nicolas Duyckaerts ,  Christian Walsdorff ,  Christian Bartosch ,  Juergen Zuehlke ,  Miguel Angel Romero Valle

IPC: B01J23/68 ,  B01J21/04 ,  B01J35/40 ,  B01J35/56 ,  B01J35/61 ,  B01J35/63 ,  B01J35/64 ,  B01J35/66 ,  B01J37/02 ,  B01J37/08 ,  C07D301/04

CPC classification number: B01J23/688 ,  B01J21/04 ,  B01J35/40 ,  B01J35/56 ,  B01J35/612 ,  B01J35/633 ,  B01J35/635 ,  B01J35/651 ,  B01J35/653 ,  B01J35/657 ,  B01J35/695 ,  B01J37/0213 ,  B01J37/082 ,  C07D301/04

Abstract: A shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene, comprising silver deposited on a porous refractory support, the shaped catalyst body having a first face side surface, a second face side surface and a circumferential surface, characterized by a content of at least 20 wt.-% of silver, relative to the total weight of the shaped catalyst body; a multilobe structure; a plurality of passageways extending from the first face side surface to the second face side surface, outer passageways being arranged around a central passageway with one outer passageway being assigned to each lobe, wherein neighboring outer passageways are arranged essentially equidistantly to each other and the outer passageways are arranged essentially equidistantly to the central passageway; a minimum wall thickness A between two neighboring passageways in the range of 0.6 to 1.3 mm; a minimum wall thickness B between each outer passageway and the circumferential surface in the range of 1.1 to 1.8 mm; and a BET surface area in the range of 1.6 to 3.0 m2/g. The shaped catalyst bodies allow for a favorable balance between mechanical stability, pressure drop and selectivity. The invention also relates to a process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising reacting ethylene and oxygen in the presence of a shaped catalyst body as defined above. The invention further relates to a process for preparing a shaped catalyst body as above, comprising i) impregnating a refractory support having a BET surface area in the range of 1.4 to 2.5 m2/g with a silver impregnation solution; and ii) subjecting the impregnated refractory support to a calcination process; wherein steps i) and ii) are optionally repeated.

公开(公告)号：US09714227B2

公开(公告)日：2017-07-25

申请号：US15102654

申请日：2014-12-01

Applicant: BASF SE

Inventor： Joseph J. Zakzeski ,  Marco Bosch ,  Cornelia Dobner ,  Christian Bartosch ,  Jürgen Zühlke

IPC: B01J27/02 ,  B01J27/055 ,  B01J27/047 ,  C07D301/03 ,  C07D301/10 ,  B01J23/68 ,  B01J35/10 ,  B01J21/04 ,  B01J37/08 ,  B01J35/00 ,  B01J35/02 ,  B01J37/02

CPC classification number: C07D301/10 ,  B01J21/04 ,  B01J23/688 ,  B01J27/047 ,  B01J27/055 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/026 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1066 ,  B01J35/1071 ,  B01J35/1076 ,  B01J35/109 ,  B01J37/0213 ,  B01J37/0215 ,  B01J37/0236 ,  B01J37/088 ,  B01J2523/00 ,  Y02P20/52 ,  B01J2523/11 ,  B01J2523/15 ,  B01J2523/18 ,  B01J2523/62 ,  B01J2523/69 ,  B01J2523/74

Abstract: The present invention relates to a catalyst for the epoxidation of alkenes, comprising silver, rhenium, cesium, lithium, tungsten and sulfur on a support. The present invention further relates to a process for producing the catalyst and the use of the catalyst for the oxidation of alkylenes to alkylene oxides. In addition, the present invention relates to a process for preparing ethylene oxide from ethylene, which comprises the oxidation of ethylene with oxygen in the presence of said catalyst.

公开(公告)号：US12187692B2

公开(公告)日：2025-01-07

申请号：US17285780

申请日：2019-09-19

Applicant: BASF SE

Inventor： Andrey Karpov ,  Marco Oskar Kennema ,  Nicolas Duyckaerts ,  Christian Walsdorff ,  Christian Bartosch ,  Juergen Zuehlke ,  Miguel Angel Romero Valle

IPC: C07D301/10 ,  B01J21/04 ,  B01J23/68 ,  B01J35/31 ,  B01J35/40 ,  B01J35/56 ,  B01J35/61 ,  B01J35/63 ,  B01J35/66

Abstract: A process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising: directing a feed comprising gaseous ethylene and gaseous oxygen through a packing of individual shaped catalyst bodies, under conditions conducive to obtain a reaction mixture containing at least 2.7 vol.-% of ethylene oxide, wherein each shaped catalyst body comprises silver deposited on a refractory support and is characterized by a content of at least 20 wt.-% of silver, relative to the total weight of the shaped catalyst body; a BET surface area in the range of 1.6 to 3.0 m2/g; a first face side surface, a second face side surface and a circumferential surface with a plurality of passageways extending from the first face side surface to the second face side surface; and a uniform multilobed cross-section; and a longest direct diffusion pathway d, with 2d being in the range of 0.7 to 2.4 mm, wherein the longest diffusion pathway d is defined as the shortest distance from the geometric surface of the shaped catalyst body to a point inside the structure of the shaped catalyst body for which point the shortest distance is the largest among all points. The process allows for increased activity and/or stability of the catalyst while maintaining or increasing selectivity at high productivity.

公开(公告)号：US09725428B2

公开(公告)日：2017-08-08

申请号：US14907998

申请日：2014-07-16

Applicant: BASF SE ,  Dow Global Technologies LLC

Inventor： Joaquim Henrique Teles ,  Bianca Seelig ,  Dominic Riedel ,  Philip Kampe ,  Daniel Urbanczyk ,  Markus Weber ,  Ulrich Mueller ,  Andrei-Nicolae Parvulescu ,  Kai Gumlich ,  Peter Bassler ,  Christian Bartosch ,  Richard Jacubinas ,  Meinolf Weidenbach ,  Werner Witzl

IPC: C07D303/00 ,  C07D301/12 ,  B01J29/70 ,  B01J35/00 ,  B01J35/10 ,  B01J27/18 ,  B01J27/188

CPC classification number: C07D301/12 ,  B01J27/18 ,  B01J27/188 ,  B01J29/7038 ,  B01J29/7088 ,  B01J35/002 ,  B01J35/1019 ,  B01J2229/186 ,  Y02P20/52

Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt of a phosphorus oxyacid wherein the molar ratio of potassium relative to phosphorus in the at least one potassium salt of a phosphorus oxyacid is in the range of from 0.6 to 1.4; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW comprising zinc, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane.

公开(公告)号：US09943838B2

公开(公告)日：2018-04-17

申请号：US14907714

申请日：2014-07-16

Applicant: BASF SE ,  DOW GLOBAL TECHNOLOGIES LLC

Inventor： Andrei-Nicolae Parvulescu ,  Ulrich Mueller ,  Joaquim Henrique Teles ,  Bianca Seelig ,  Philip Kampe ,  Markus Weber ,  Peter Resch ,  Christian Bartosch ,  Dominic Riedel ,  Daniel Urbanczyk ,  Alexander Schroeder ,  Ulrike Wegerle

IPC: C07D301/12 ,  B01J29/90 ,  B01J37/06 ,  B01J37/10 ,  B01J38/48 ,  B01J29/70 ,  B01J29/89 ,  B01J35/00 ,  B01J37/00 ,  B01J37/02 ,  C07D303/04 ,  B01J37/08 ,  B01J37/30 ,  B01J38/02 ,  B01J38/06

CPC classification number: B01J29/90 ,  B01J29/7088 ,  B01J29/89 ,  B01J35/00 ,  B01J37/0009 ,  B01J37/0045 ,  B01J37/0201 ,  B01J37/0203 ,  B01J37/06 ,  B01J37/08 ,  B01J37/10 ,  B01J37/30 ,  B01J38/02 ,  B01J38/06 ,  B01J38/48 ,  B01J2229/183 ,  B01J2229/186 ,  B01J2229/42 ,  C07D301/12 ,  C07D303/04 ,  Y02P20/584

Abstract: The present invention relates to a process for the regeneration of a catalyst comprising a titanium-containing zeolite, said catalyst having been used in a process for the preparation of an olefin oxide and having phosphate deposited thereon, said process for the regeneration comprising the steps: (a) separating the reaction mixture from the catalyst, (b) washing the catalyst obtained from (a) with liquid aqueous system; (c) optionally drying the catalyst obtained from (b) in a gas stream comprising an inert gas at a temperature of less than 300° C.; (d) calcining the catalyst obtained from (c) in a gas stream comprising oxygen at a temperature of at least 300° C.