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公开(公告)号：US20150080545A1
公开(公告)日：2015-03-19
申请号：US14480363
申请日：2014-09-08
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jihad M. Dakka , Lorenzo C. DeCaul , Keith H. Kuechler , Neeraj Sangar , Michael Salciccioli , Alan A. Galuska , Gary D. Mohr
IPC: C08G63/185 , C08G63/199 , C07C51/16 , C07C63/333 , C07C67/08 , C07C15/14
CPC classification number: C08G63/185 , C07C2/74 , C07C5/367 , C07C51/265 , C07C2101/14 , C07C2601/14 , C08G63/199 , C08J5/18 , C08J2327/06 , C08K2201/014 , D21H27/20 , H01B3/443 , Y10T428/2964 , C08K5/10 , C08L27/06 , C07C63/333 , C07C63/26 , C07C13/28 , C07C15/14
Abstract: In a process for producing 3,4′ and/or 4,4′ dimethyl-substituted biphenyl compounds, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl-substituted biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing at least 50% of 3,4′ and 4,4′ dimethylbiphenyl isomers by weight of the first stream and at least one second stream comprising one or more 2,x′ (where x′ is 2′, 3′, or 4′) and 3,3′ dimethylbiphenyl isomers.
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公开(公告)号：US20140378697A1
公开(公告)日：2014-12-25
申请号：US14314557
申请日：2014-06-25
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Emiel de Smit , Neeraj Sangar , Michael Salciccioli , Jihad M. Dakka , Lorenzo C. DeCaul , Terry E. Helton , Scott J. Weigel
IPC: C07C2/74 , C07C67/08 , C07C5/32 , C07C51/265
CPC classification number: C07C2/74 , B01J29/088 , B01J29/106 , B01J29/12 , B01J29/126 , B01J29/146 , B01J29/185 , B01J29/22 , B01J29/24 , B01J29/7057 , B01J29/7084 , B01J29/7415 , B01J29/7469 , B01J29/7615 , B01J29/7669 , B01J35/023 , B01J35/026 , B01J2029/081 , B01J2229/186 , B01J2229/42 , C07C5/367 , C07C51/265 , C07C67/08 , C07C2521/12 , C07C2529/08 , C07C2529/12 , C07C2529/22 , C07C2529/74 , C07C2529/80 , Y02P20/52 , C07C63/331 , C07C69/76 , C07C13/28 , C07C15/14
Abstract: This invention relates to process for producing biphenyl esters, the process comprising: (a) contacting a feed comprising toluene, xylene or mixtures thereof with hydrogen in the presence of a hydroalkylation catalyst to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluene, wherein the hydroalkylation catalyst comprises: 1) binder present at 40 wt % or less (based upon weight of final catalyst composition), 2) a hydrogenation component present at 0.2 wt % or less (based upon weight of final catalyst composition), and 3) an acidic component comprising a molecular sieve having a twelve membered (or larger) ring pore opening, channel or pocket and a largest pore dimension of 6.0 angstroms or more present at 60 wt % or more, (based upon weight of final catalyst composition); (b) dehydrogenating the hydroalkylation reaction product using a dehydrogenation catalyst to produce a dehydrogenation reaction product comprising a mixture of methyl-substituted biphenyl compounds; (c) contacting at the dehydrogenation reaction product with an oxidizing gas to convert the methyl-substituted biphenyl compounds to biphenyl carboxylic acids; and (d) reacting the biphenyl carboxylic acids with one or more C1 to C14 alcohols to produce biphenyl esters.
Abstract translation: 本发明涉及生产联苯酯的方法，该方法包括：（a）在加氢烷基化催化剂存在下使包含甲苯，二甲苯或其混合物的进料与氢气接触以产生包含（甲基环己基）甲苯的加氢烷基化反应产物，其中 加氢烷基化催化剂包括：1）以40重量％或更少（基于最终催化剂组合物的重量）存在的粘合剂，2）以0.2重量％或更少（基于最终催化剂组合物的重量）存在的氢化组分，和3） 酸性组分包含具有十二元（或更大）环孔开口，通道或口袋和最大孔尺寸为6.0埃或更大的分子筛，分子筛为60重量％或更多（基于最终催化剂组合物的重量）; （b）使用脱氢催化剂使加氢烷基化反应产物脱氢以产生包含甲基取代的联苯化合物的混合物的脱氢反应产物; （c）在脱氢反应产物与氧化气体接触以将甲基取代的联苯化合物转化为联苯羧酸; 和（d）使联苯羧酸与一种或多种C1至C14醇反应以制备联苯酯。
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公开(公告)号：US08791306B2
公开(公告)日：2014-07-29
申请号：US13903675
申请日：2013-05-28
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jihad M. Dakka , Stephen Zushma , Jon E. R. Stanat
IPC: C07C409/00 , C07C45/53 , C07C37/08 , C07C409/08 , C07C409/14 , C07D209/48 , C07C409/10 , C07C407/00 , B01J31/02
CPC classification number: C07C407/00 , B01J31/006 , B01J31/0247 , B01J2231/70 , C07C37/08 , C07C45/53 , C07C409/08 , C07C409/10 , C07C409/14 , C07C2601/14 , C07D209/48 , Y02P20/52 , C07C39/04 , C07C49/08
Abstract: In a process for oxidizing an alkylaromatic compound to the corresponding hydroperoxide, a feed comprising an alkylaromatic compound is contacted with an oxygen-containing gas in the presence of a catalyst comprising a cyclic imide. The contacting is conducted at a temperature of about 90° C. to about 150° C., with the cyclic imide being present in an amount between about 0.05 wt % and about 5 wt % of the alkylaromatic compound in the feed and the catalyst being substantially free of alkali metal compounds. The contacting oxidizes at least part of the alkylaromatic compound in said feed to the corresponding hydroperoxide.
Abstract translation: 在将烷基芳族化合物氧化成相应的氢过氧化物的方法中，包含烷基芳族化合物的进料在含有环状酰亚胺的催化剂存在下与含氧气体接触。 接触在约90℃至约150℃的温度下进行，环状酰亚胺的存在量为进料中烷基芳族化合物的约0.05重量％至约5重量％，催化剂为 基本上不含碱金属化合物。 接触将至少部分所述进料中的烷基芳族化合物氧化成相应的氢过氧化物。
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公开(公告)号：US20200325096A1
公开(公告)日：2020-10-15
申请号：US16071856
申请日：2017-03-01
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jihad M. Dakka , Bryan A Patel , Michael Salciccioli , Stephen Zushma
IPC: C07C51/265 , C07C2/84 , C07C5/48 , C07C51/43 , C07C51/44 , C07C51/353 , B01J29/74 , B01J23/44 , B01J21/04 , B01J23/62 , B01J21/08
Abstract: A process for oxidizing methyl-substituted biphenyl compounds comprises contacting a mixture comprising isomers of at least one methyl-substituted biphenyl compound with a source of oxygen, wherein the mixture comprises at least 20 wt % of isomer(s) having a methyl group at a 2-position or a 3-position on at least one benzene ring and at least 50 wt % of isomer(s) having a methyl group at a 4-position on at least one benzene ring, wherein said percentages are based on the total weight of the at least one methylbiphenyl compound in the mixture.
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公开(公告)号：US10252968B2
公开(公告)日：2019-04-09
申请号：US15742910
申请日：2016-06-17
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jihad M. Dakka , Ashley J. Malik , Christopher L. Becker , Jason D. Davis , Kirk C. Nadler , Jose M. Vargas , Tan-Jen Chen , Seth M. Washburn , Jörg F. W. Weber
Abstract: Disclosed are novel processes for making cyclohexanone compositions, from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. The process includes hydrogenation of a feed stream comprising phenol, cyclohexanone, and cyclohexylbenzene. The feed stream may be subjected to one or more pre-hydrogenation treatments, such as passing through one or more sorbents, addition of basic chemical agents, and/or addition of water, so as to improve catalyst activity, minimize undesired side reactions, and/or remove catalyst poisons from the feed stream. The feed stream may be provided to a hydrogenation reaction zone in the vapor phase, with periodic alterations to hydrogenation reaction conditions such that the feed is provided in mixed liquid and vapor phase in order to carry out liquid washing of a hydrogenation catalyst bed within the hydrogenation reaction zone.
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Patent Agency Ranking
公开(公告)号：US10011538B2
公开(公告)日：2018-07-03
申请号：US14872468
申请日：2015-10-01
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jihad M. Dakka , Robert G. Tinger
CPC classification number: C07C2/864 , C07C2/865 , C07C5/2702 , C07C5/2732 , C07C7/12 , C07C7/163 , C07C45/006 , C07C51/265 , C07C15/08 , C07C63/26 , C07C49/303
Abstract: A method for the purification of an aromatic hydrocarbon process stream having phenol therein is disclosed. Aspects of the method include contacting at least a portion of the aromatic hydrocarbon process stream with a hydrogenation catalyst under hydrogenation conditions to provide a hydrogenation effluent having a lower concentration of phenol than said aromatic hydrocarbon process stream.
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公开(公告)号：US09938220B2
公开(公告)日：2018-04-10
申请号：US15324666
申请日：2015-08-03
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Christopher L. Becker , Jason D. Davis , Jihad M. Dakka , Kirk C. Nadler
CPC classification number: C07C45/006 , B01J8/0492 , B01J8/065 , B01J8/067 , B01J19/242 , B01J19/2425 , B01J2208/065 , B01J2219/24 , C07C37/74 , C07C45/82 , C07C2101/14 , C07C2601/14 , C07C49/403 , C07C39/04
Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
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公开(公告)号：US09938218B2
公开(公告)日：2018-04-10
申请号：US15324653
申请日：2015-08-03
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Christopher L. Becker , Jason D. Davis , Jihad M. Dakka , Kirk C. Nadler
CPC classification number: C07C45/006 , B01D3/14 , B01D3/36 , C07C37/74 , C07C45/82 , C07C49/403 , Y02P20/52 , C07C39/04
Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
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公开(公告)号：US20170233323A1
公开(公告)日：2017-08-17
申请号：US15502687
申请日：2015-09-08
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Christopher L. Becker , Jason D. Davis , Jihad M. Dakka , Kirk C. Nadler
CPC classification number: C07C45/82 , B01D3/143 , C07C37/74 , C07C45/006 , C07C49/403 , C07C39/04
Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
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公开(公告)号：US09725377B2
公开(公告)日：2017-08-08
申请号：US14314557
申请日：2014-06-25
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Emiel de Smit , Neeraj Sangar , Michael Salciccioli , Jihad M. Dakka , Lorenzo C. DeCaul , Terry E. Helton , Scott J. Weigel
IPC: C07C69/76 , C07C2/74 , C07C51/265 , C07C67/08 , C07C5/367 , B01J29/12 , B01J29/22 , B01J29/74 , B01J29/08 , B01J29/10 , B01J29/14 , B01J29/18 , B01J29/24 , B01J29/70 , B01J29/76 , B01J35/02
CPC classification number: C07C2/74 , B01J29/088 , B01J29/106 , B01J29/12 , B01J29/126 , B01J29/146 , B01J29/185 , B01J29/22 , B01J29/24 , B01J29/7057 , B01J29/7084 , B01J29/7415 , B01J29/7469 , B01J29/7615 , B01J29/7669 , B01J35/023 , B01J35/026 , B01J2029/081 , B01J2229/186 , B01J2229/42 , C07C5/367 , C07C51/265 , C07C67/08 , C07C2521/12 , C07C2529/08 , C07C2529/12 , C07C2529/22 , C07C2529/74 , C07C2529/80 , Y02P20/52 , C07C63/331 , C07C69/76 , C07C13/28 , C07C15/14
Abstract: This invention relates to process for producing biphenyl esters, the process comprising: (a) contacting a feed comprising toluene, xylene or mixtures thereof with hydrogen in the presence of a hydroalkylation catalyst to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluene, wherein the hydroalkylation catalyst comprises: 1) binder present at 40 wt % or less (based upon weight of final catalyst composition), 2) a hydrogenation component present at 0.2 wt % or less (based upon weight of final catalyst composition), and 3) an acidic component comprising a molecular sieve having a twelve membered (or larger) ring pore opening, channel or pocket and a largest pore dimension of 6.0 angstroms or more present at 60 wt % or more, (based upon weight of final catalyst composition); (b) dehydrogenating the hydroalkylation reaction product using a dehydrogenation catalyst to produce a dehydrogenation reaction product comprising a mixture of methyl-substituted biphenyl compounds; (c) contacting at the dehydrogenation reaction product with an oxidizing gas to convert the methyl-substituted biphenyl compounds to biphenyl carboxylic acids; and (d) reacting the biphenyl carboxylic acids with one or more C1 to C14 alcohols to produce biphenyl esters.
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