-
公开(公告)号：SG11202002227SA
公开(公告)日：2020-04-29
申请号：SG11202002227S
申请日：2018-09-12
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS
Inventor： HERRON JEFFREY , ARRIOLA DANIEL J , BLAYLOCK D WAYNE , LEE WEN-SHENG , SUSSMAN VICTOR J , HICKMAN DANIEL A , LIMBACH KIRK W
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 oxygen concentration at a reactor outlet is from 1 to 7.5 mol % and wherein pH at a reactor outlet is no greater than 7.5.
-
公开(公告)号：CA3071185A1
公开(公告)日：2019-01-31
申请号：CA3071185
申请日：2018-06-25
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： SUSSMAN VICTOR J , LEE WEN-SHENG , HERRON JEFFREY , BLAYLOCK D WAYNE , ARRIOLA DANIEL J , HEITSCH ANDREW , KIRILIN ALEXEY , CLEMENTS HEIDI , SCHMUCKER ABRIN L , HICKMAN DANIEL A
Abstract: A method for preparing a heterogeneous catalyst. The method comprises steps of: (a) combining (i) a support, (ii) an aqueous solution of a noble metal compound and (iii) a C2-C18 thiol comprising at least one hydroxyl or carboxylic acid substituent; to form a wet particle and (b) removing water from the wet particle by drying followed by calcination to produce the catalyst.
-
公开(公告)号：SA520411167B1
公开(公告)日：2022-06-12
申请号：SA520411167
申请日：2020-01-28
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS
Inventor： OLSON KURT W , BLAYLOCK D WAYNE , KRAPTCHETOV DMITRI A , LIMBACH KIRK W , HERRON JEFFREY , HICKMAN DANIEL A
Abstract: يتعلقالاختراعالحاليبطريقةلتحضيرميثيلميثاكريلات methyl methacrylate منميثاكرولينوميثانول. تشتملالطريقةعلىملامسةخليطيشتملعلىميثاكرولين،وميثانول،والأكسجينوقاعدةفيمفاعلأنبوبيبهأربعمناطقعلىالأقلمعطبقةمحفزمنمحفزغيرمتجانسيشتملعلىمادةحاملةوفلزنبيل،حيثتتناوبمناطقالتفاعلالتيتشتملعلىطبقاتالمحفزمعمناطقالخلطالتيلاتشتملعلىطبقاتالمحفز.
-
公开(公告)号：CA3075083A1
公开(公告)日：2019-03-28
申请号：CA3075083
申请日：2018-09-12
Inventor： HERRON JEFFREY , ARRIOLA DANIEL J , BLAYLOCK D WAYNE , LEE WEN-SHENG , SUSSMAN VICTOR J , HICKMAN DANIEL A , LIMBACH KIRK W
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 oxygen concentration at a reactor outlet is from 1 to 7.5 mol% and wherein pH at a reactor outlet is no greater than 7.5.
-
公开(公告)号：MX2020002600A
公开(公告)日：2020-07-20
申请号：MX2020002600
申请日：2018-09-12
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： BLAYLOCK D WAYNE , ARRIOLA DANIEL J , LIMBACH KIRK W , HERRON JEFFREY , SUSSMAN VICTOR J , LEE WEN-SHENG , HICKMAN DANIEL A
Abstract: Un método para preparar metacrilato de metilo a partir de metacroleína y metanol. El método comprende poner en contacto una mezcla que comprende metacroleína, metanol y oxígeno con un catalizador heterogéneo que comprende un soporte y un metal noble, en donde la concentración de oxígeno a la salida del reactor es de 1 a 7.5 % en mol y en donde el pH a la salida del reactor es no mayor que 7.5.
-
Patent Agency Ranking
公开(公告)号：SG11202000743WA
公开(公告)日：2020-02-27
申请号：SG11202000743W
申请日：2018-06-25
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： SUSSMAN VICTOR J , LEE WEN-SHENG , HERRON JEFFREY , BLAYLOCK D WAYNE , ARRIOLA DANIEL J , HEITSCH ANDREW , KIRILIN ALEXEY , CLEMENTS HEIDI , SCHMUCKER ABRIN L , HICKMAN DANIEL A
Abstract: A method for preparing a heterogeneous catalyst. The method comprises steps of: (a) combining (i) a support, (ii) an aqueous solution of a noble metal compound and (iii) a C2-C18 thiol comprising at least one hydroxyl or carboxylic acid substituent; to form a wet particle and (b) removing water from the wet particle by drying followed by calcination to produce the catalyst.
-
公开(公告)号：CA3071240A1
公开(公告)日：2019-01-31
申请号：CA3071240
申请日：2018-06-25
Applicant: ROHM & HAAS , DOW GLOBAL TECHNOLOGIES LLC
Inventor： LIMBACH KIRK W , KRAPTCHETOV DMITRI A , FRICK CHRISTOPHER D , HICKMAN DANIEL A , HERRON JEFFREY , OLSON KURT D , BLAYLOCK D WAYNE , SUSSMAN VICTOR J , LEE WEN-SHENG
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：SG11202000745YA
公开(公告)日：2020-02-27
申请号：SG11202000745Y
申请日：2018-06-25
Applicant: ROHM & HAAS , DOW GLOBAL TECHNOLOGIES LLC
Inventor： LIMBACH KIRK W , KRAPTCHETOV DMITRI A , FRICK CHRISTOPHER D , HICKMAN DANIEL A , HERRON JEFFREY , OLSON KURT D , BLAYLOCK D WAYNE , SUSSMAN VICTOR J , LEE WEN-SHENG
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：SG11202000744UA
公开(公告)日：2020-02-27
申请号：SG11202000744U
申请日：2018-06-25
Applicant: ROHM & HAAS , DOW GLOBAL TECHNOLOGIES LLC
Inventor： KRAPTCHETOV DMITRI A , LIMBACH KIRK W , HICKMAN DANIEL A , HERRON JEFFREY , OLSON KURT W , BLAYLOCK D WAYNE
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a tubular reactor having at least four zones a mixture comprising methacrolein, methanol, oxygen and a base with a catalyst bed of heterogeneous catalyst comprising a support and a noble metal, wherein reaction zones comprising catalyst beds alternate with mixing zones not comprising catalyst beds.
-
10.发明专利
公开(公告)号：CA3071437A1
公开(公告)日：2019-01-31
申请号：CA3071437
申请日：2018-06-25
Applicant: ROHM & HAAS , DOW GLOBAL TECHNOLOGIES LLC
Inventor： KRAPTCHETOV DMITRI A , LIMBACH KIRK W , HICKMAN DANIEL A , HERRON JEFFREY , OLSON KURT W , BLAYLOCK D WAYNE
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a tubular reactor having at least four zones a mixture comprising methacrolein, methanol, oxygen and a base with a catalyst bed of heterogeneous catalyst comprising a support and a noble metal, wherein reaction zones comprising catalyst beds alternate with mixing zones not comprising catalyst beds.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.024 seconds)
