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公开(公告)号：US11577225B2
公开(公告)日：2023-02-14
申请号：US16959231
申请日：2018-12-13
摘要： 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：US20200330959A1
公开(公告)日：2020-10-22
申请号：US16959231
申请日：2018-12-13
摘要： 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：US11498057B2
公开(公告)日：2022-11-15
申请号：US17252886
申请日：2019-06-20
发明人： Kirk W. Limbach , Christopher D. Frick , Dmitry A. Krapchetov , Wen-Sheng Lee , Victor J. Sussman , Jeffrey A. Herron
摘要： 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：US11111204B2
公开(公告)日：2021-09-07
申请号：US16959232
申请日：2018-12-13
IPC分类号： C07C67/39 , B01J21/06 , B01J21/08 , B01J23/44 , B01J23/52 , B01J35/02 , B01J35/00 , B01J19/18 , C07C69/54
摘要： 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：US20210113997A1
公开(公告)日：2021-04-22
申请号：US17252886
申请日：2019-06-20
发明人： Kirk W. Limbach , Christopher D. Frick , Dmitry A. Krapchetov , Wen -Sheng Lee , Victor J. Sussman , Jeffrey A. Herron
摘要： 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：US11813593B2
公开(公告)日：2023-11-14
申请号：US17252884
申请日：2019-06-20
发明人： Kirk W. Limbach , Christopher D. Frick , Dmitry A. Krapchetov , Wen -Sheng Lee , Victor J. Sussman , Jeffrey A. Herron
CPC分类号： B01J23/52 , B01J21/04 , B01J21/08 , B01J35/008 , C07C67/39 , B01J6/001 , B01J37/031
摘要： A heterogeneous catalyst comprising a support and gold, wherein: (i) said support comprises alumina, (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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7.发明公开公开(公告)号：US20230321637A1
公开(公告)日：2023-10-12
申请号：US18011208
申请日：2021-07-13
CPC分类号： B01J23/52 , B01J37/0209 , B01J37/08 , B01J35/0006 , B01J35/1014 , B01J35/1038 , B01J35/1042 , B01J27/224
摘要： A catalyst comprising a noble metal disposed on a support. The noble metal is present in an amount ranging from 0.1 wt % to 10 wt % relative to the total weight of the catalyst. The support comprises at least 50 wt % silicon carbide relative to the total weight of the support. The silicon carbide has a surface area of at least 5 m2/g. 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：US20230113685A1
公开(公告)日：2023-04-13
申请号：US17908041
申请日：2021-03-15
发明人： Kirk W. Limbach , Christopher D. Frick , Wen -Sheng Lee , Victor J. Sussman , Dmitry A. Krapchetov , Jeffrey A. Herron
摘要： 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：US20210121856A1
公开(公告)日：2021-04-29
申请号：US17252884
申请日：2019-06-20
发明人： Kirk W. Limbach , Christopher D. Frick , Dmitry A. Krapchetov , Wen -Sheng Lee , Victor J. Sussman , Jeffrey A. Herron
摘要： A heterogeneous catalyst comprising a support and gold, wherein: (i) said support comprises alumina, (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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10.发明申请公开(公告)号：US20200331840A1
公开(公告)日：2020-10-22
申请号：US16959232
申请日：2018-12-13
摘要： 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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