公开(公告)号：US11498057B2

公开(公告)日：2022-11-15

申请号：US17252886

申请日：2019-06-20

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Kirk W. Limbach ,  Christopher D. Frick ,  Dmitry A. Krapchetov ,  Wen-Sheng Lee ,  Victor J. Sussman ,  Jeffrey A. Herron

IPC: B01J23/52 ,  B01J21/06 ,  B01J21/08 ,  B01J35/00 ,  B01J35/02 ,  C07C67/44

Abstract: A heterogeneous catalyst comprising a support and gold, wherein: (i) said support comprises titanium, (ii) said catalyst comprises from 0.1 to 5 wt % of gold, (iii) at least 90 wt % of the gold is in the outer 60% of catalyst volume, and (iv) particles of the catalyst have an average diameter from 200 microns to 30 mm; wherein weight percentages are based on weight of the catalyst.

公开(公告)号：US10829432B2

公开(公告)日：2020-11-10

申请号：US16634408

申请日：2018-06-25

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Kirk W. Limbach ,  Dmitry A. Krapchetov ,  Christopher D. Frick ,  Daniel A. Hickman ,  Jeffrey Herron ,  Kurt D. Olson ,  D. Wayne Blaylock ,  Victor Sussman ,  Wen-Sheng Lee

IPC: C07C67/39 ,  B01J21/04 ,  B01J23/44 ,  B01J23/52 ,  B01J35/00 ,  B01J35/02

Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein said catalyst has an average diameter of at least 200 microns and at least 90 wt % of the noble metal is in the outer 70% of catalyst volume, and wherein oxygen concentration at a reactor outlet is from 0.5 to 7.5 mol %.

公开(公告)号：US11207664B2

公开(公告)日：2021-12-28

申请号：US16632574

申请日：2018-06-25

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： Victor Sussman ,  Wen Sheng Lee ,  Kirk W. Limbach ,  Christopher D. Frick

IPC: B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/10 ,  B01J21/12 ,  B01J21/14 ,  B01J23/10 ,  B01J23/44 ,  B01J23/52 ,  B01J35/00 ,  B01J35/02

Abstract: A heterogeneous catalyst comprising a support and a noble metal. The catalyst has an average diameter of at least 200 microns and at least 90 wt % of the noble metal is in the outer 50% of catalyst volume.

公开(公告)号：US10829431B2

公开(公告)日：2020-11-10

申请号：US16632939

申请日：2018-06-25

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Kirk W. Limbach ,  Dmitry A. Krapchetov ,  Christopher D. Frick ,  Daniel A. Hickman

IPC: C07C67/39 ,  C07C69/54

Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein said catalyst has an average diameter of at least 200 microns, wherein oxygen concentration at a reactor outlet is from 0.5 to 7.5 mol % and wherein the reactor comprises a partition with the catalyst bed on a first side of the partition and with flow through the catalyst bed in a first direction and flow on a second side of the partition in an opposite direction.

公开(公告)号：US20200330959A1

公开(公告)日：2020-10-22

申请号：US16959231

申请日：2018-12-13

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Christopher D. Frick ,  Jeffrey A. Herron ,  Kirk W. Limbach ,  Wen Sheng Lee ,  Victor J. Sussman

IPC: B01J21/08 ,  B01J21/06 ,  B01J23/52 ,  B01J23/44 ,  B01J35/02

Abstract: A heterogeneous catalyst comprising a support and a noble metal, wherein said support comprises silicon, and wherein said catalyst comprises from 0.1 to 40 mol % titanium and from 0.1 to 10 mol % of at least one noble metal.

公开(公告)号：US20200156047A1

公开(公告)日：2020-05-21

申请号：US16632574

申请日：2018-06-25

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： Victor Sussman ,  Wen Sheng Lee ,  Kirk W. Limbach ,  Christopher D. Frick

IPC: B01J23/52 ,  B01J35/02 ,  B01J35/00

Abstract: A heterogeneous catalyst comprising a support and a noble metal. The catalyst has an average diameter of at least 200 microns and at least 90 wt % of the noble metal is in the outer 50% of catalyst volume.

公开(公告)号：US09676699B2

公开(公告)日：2017-06-13

申请号：US14906310

申请日：2014-07-29

Applicant: Rohm and Haas Company

Inventor： Kirk W. Limbach ,  Dmitri A. Kraptchetov ,  Christopher D. Frick

IPC: C07C67/39 ,  B01J37/03 ,  B01J37/16 ,  B01J21/04 ,  B01J23/00 ,  B01J23/644 ,  B01J23/652 ,  B01J23/648 ,  B01J27/186 ,  C07C67/62

CPC classification number: C07C67/39 ,  B01J21/04 ,  B01J23/002 ,  B01J23/6447 ,  B01J23/6484 ,  B01J23/6525 ,  B01J27/186 ,  B01J37/031 ,  B01J37/038 ,  B01J37/16 ,  B01J2523/00 ,  C07C67/62 ,  C07C69/54 ,  B01J2523/31 ,  B01J2523/36 ,  B01J2523/54 ,  B01J2523/824 ,  B01J2523/32 ,  B01J2523/56 ,  B01J2523/68 ,  B01J2523/3712 ,  B01J2523/3725 ,  B01J2523/51 ,  B01J2523/35

Abstract: A process for producing methyl methacrylate, the process comprising contacting reactants comprising methacrolein, methanol and an oxygen-containing gas, under reaction conditions in the presence of a solid catalyst comprising palladium, bismuth and at least one third element X, where X is selected from the group consisting of P, S, Sc, V, Ga, Se, Y, Nb, Mo, La, Ce, and Nd, wherein the solid catalyst further comprises a support selected from at least one member of the group consisting of silica, alumina, calcium carbonate, active carbon, zinc oxide, titanium oxide and magnesium oxide.

公开(公告)号：US11111204B2

公开(公告)日：2021-09-07

申请号：US16959232

申请日：2018-12-13

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Christopher D. Frick ,  Jeffrey A. Herron ,  Kirk W. Limbach ,  Wen Sheng Lee ,  Victor J. Sussman

IPC: C07C67/39 ,  B01J21/06 ,  B01J21/08 ,  B01J23/44 ,  B01J23/52 ,  B01J35/02 ,  B01J35/00 ,  B01J19/18 ,  C07C69/54

Abstract: A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein said support comprises silicon, and wherein said catalyst comprises from 0.1 to 40 mol % titanium and from 0.1 to 10 mol % of at least one noble metal.

公开(公告)号：US20210113997A1

公开(公告)日：2021-04-22

申请号：US17252886

申请日：2019-06-20

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Kirk W. Limbach ,  Christopher D. Frick ,  Dmitry A. Krapchetov ,  Wen -Sheng Lee ,  Victor J. Sussman ,  Jeffrey A. Herron

IPC: B01J23/52 ,  B01J21/06 ,  B01J21/08 ,  B01J35/00 ,  B01J35/02 ,  C07C67/44

Abstract: A heterogeneous catalyst comprising a support and gold, wherein: (i) said support comprises titanium, (ii) said catalyst comprises from 0.1 to 5 wt % of gold, (iii) at least 90 wt % of the gold is in the outer 60% of catalyst volume, and (iv) particles of the catalyst have an average diameter from 200 microns to 30 mm; wherein weight percentages are based on weight of the catalyst.

公开(公告)号：US20170226043A1

公开(公告)日：2017-08-10

申请号：US15521750

申请日：2015-10-07

Applicant: Rohm and Haas Company

Inventor： Kirk W. Limbach ,  Dmitri A. Kraptchetov ,  Christopher D. Frick

IPC: C07C67/44

CPC classification number: C07C67/44 ,  C07C67/39 ,  C07C69/54

Abstract: A process for the preparation of MMA via oxidative esterification in the presence of a catalyst comprising palladium, bismuth, and antimony.