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公开(公告)号：SA520420717B1
公开(公告)日：2024-02-19
申请号：SA520420717
申请日：2020-12-03
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS
Inventor： HERRON JEFFREY , SUSSMAN VICTOR J , KRAPCHETOV DMITRY A , LEE WEN SHENG , LIMBACH KIRK W , FRICK CHRISTOPHER D
IPC: B01J35/00
Abstract: محفزغيرمتجانس heterogeneous catalyst يشتملعلىمادةحاملةوذهب،حيث: (1) تشتملالمادةالحاملةالمذكورةعلىتيتانيوم، (2) يشتملالمحفزالمذكورعلىمايتراوحمن 0.1 إلى 5% بالوزنمنالذهب، (3) يوجدعلىالأقل 90% بالوزنمنالذهبفي 60% منالحجمالخارجيللمحفز،و(4) يكونلجسيماتالمحفزمتوسطقطرمن 200 ميكرونإلى 30 مم؛حيثتعتمدنسبالوزنعلىوزنالمحفز. يكونالمحفزوفقًالهذاالاختراعمفيدًافيعمليةلإنتاجميثيلميثاكريلات methyl methacrylate (MMA) والتيتشتملعلىمعالجةميثاكرولينبميثانولفيمفاعلأسترةتأكسدية oxidative esterification reactor (OER) يحتويعلىطبقةمحفز.
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公开(公告)号：SG11202012404XA
公开(公告)日：2021-01-28
申请号：SG11202012404X
申请日：2019-06-20
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS
Inventor： LIMBACH KIRK W , FRICK CHRISTOPHER D , KRAPCHETOV DMITRY A , LEE WEN SHENG , SUSSMAN VICTOR J , HERRON JEFFREY
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.
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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.
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公开(公告)号：SG11202000694WA
公开(公告)日：2020-02-27
申请号：SG11202000694W
申请日：2018-06-25
Applicant: ROHM & HAAS , DOW GLOBAL TECHNOLOGIES LLC
Inventor： KRAPTCHETOV DMITRI A , ELDER JAMES E , WORLEY WILLIAM G , LIMBACH KIRK W , HICKMAN DANIEL A , KIRILIN ALEXEY , LEE WEN-SHENG , SUSSMAN VICTOR J
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein pH at the reactor outlet is from 3 to 6.7.
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公开(公告)号：CA3071183A1
公开(公告)日：2019-01-31
申请号：CA3071183
申请日：2018-06-25
Applicant: ROHM & HAAS , DOW GLOBAL TECHNOLOGIES LLC
Inventor： KRAPTCHETOV DMITRI A , LIMBACH KIRK W , HICKMAN DANIEL A , HEITSCH ANDREW , SUSSMAN VICTOR J , LEE WEN-SHENG , SHAYIB RAMZY
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 average concentration of methacrolein is at least 15 wt%.
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Patent Agency Ranking
公开(公告)号：AU2021238293A1
公开(公告)日：2022-10-06
申请号：AU2021238293
申请日：2021-03-15
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS
Inventor： LIMBACH KIRK W , FRICK CHRISTOPHER D , LEE WEN -SHENG , SUSSMAN VICTOR J , KRAPCHETOV DMITRY A , HERRON JEFFREY A
Abstract: A catalyst comprising noble metal particles and titanium-containing particles. The noble metal particles and titanium-containing particles are disposed on an outer surface of a support. At least 20% by weight of the total weight of noble metal particles are adjacent to at least one titanium-containing particle. The noble metal particles have an average diameter of less than 15 nm, and the catalyst has an average diameter of at least 200 microns. A method for preparing methyl methacrylate from methacrolein and methanol using the catalyst is also disclosed.
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公开(公告)号：SG11202005802VA
公开(公告)日：2020-07-29
申请号：SG11202005802V
申请日：2018-12-13
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS
Inventor： FRICK CHRISTOPHER D , HERRON JEFFREY , LIMBACH KIRK W , LEE WEN SHENG , SUSSMAN VICTOR J
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.
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公开(公告)号：SG11202000676UA
公开(公告)日：2020-02-27
申请号：SG11202000676U
申请日：2018-06-25
Applicant: ROHM & HAAS , DOW GLOBAL TECHNOLOGIES LLC
Inventor： SUSSMAN VICTOR J , LEE WEN-SHENG , LIMBACH KIRK W , FRICK CHRISTOPHER D
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.
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公开(公告)号：CA3103641A1
公开(公告)日：2020-01-02
申请号：CA3103641
申请日：2019-06-20
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS
Inventor： LIMBACH KIRK W , FRICK CHRISTOPHER D , KRAPCHETOV DMITRY A , LEE WEN SHENG , SUSSMAN VICTOR J , HERRON JEFFREY
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. The catalyst of this invention is useful in a process for producing methyl methacrylate (MMA) which comprises treating methacrolein with methanol in an oxidative esterification reactor (OER) containing a catalyst bed.
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10.发明专利
公开(公告)号：CA3086012A1
公开(公告)日：2019-07-18
申请号：CA3086012
申请日：2018-12-13
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS
Inventor： FRICK CHRISTOPHER D , HERRON JEFFREY , LIMBACH KIRK W , LEE WEN SHENG , SUSSMAN VICTOR J
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.
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