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公开(公告)号：US09012683B2
公开(公告)日：2015-04-21
申请号：US13289518
申请日：2011-11-04
Applicant: Gregory Abbott Wellman, Jr. , Brandon Tyler Earls , Robert Sterling Kline
CPC classification number: C07C51/12 , C07C51/54 , Y02P20/582 , C07C53/08 , C07C53/12
Abstract: Disclosed is a process for the coproduction of acetic acid and acetic anhydride by producing in a first carbonylation reactor a carbonylation product mixture containing acetic anhydride, removing the carbonylation mixture from the first carbonylation reactor, contacting the carbonylation mixture with methanol to react with and convert some or all of the acetic anhydride contained in the mixture to acetic acid and methyl acetate, feeding the resulting reaction composition to a second carbonylation reactor and contacting the reaction composition to carbonylation.
Abstract translation: 公开了一种通过在第一羰基化反应器中生产含有乙酸酐的羰基化产物混合物，从第一羰基化反应器中除去羰基化混合物，使羰基化混合物与甲醇反应并将其转化为一些方法来共同生产乙酸和乙酸酐的方法 或所有混合物中所含的乙酸酐与乙酸和乙酸甲酯反应，将得到的反应组合物加入到第二羰基化反应器中并使反应组合物与羰基化反应。
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2.发明授权Acetic anhydride production by way of carbonylation with enhanced reaction and flashing 有权通过羰基化反应生成乙酸酐，反应和闪烁公开(公告)号：US08455685B2
公开(公告)日：2013-06-04
申请号：US12924429
申请日：2010-09-27
Applicant: Mark O. Scates
Inventor： Mark O. Scates
IPC: C07C51/12
CPC classification number: B01J8/382 , B01J8/007 , B01J8/20 , B01J2208/00283 , B01J2219/00006 , B01J2219/0004 , C07C51/12 , C07C51/54 , C07C53/08 , C07C53/12
Abstract: A method of making acetic anhydride or a mixture of acetic anhydride and acetic acid comprising: (a) catalytically reacting a feedstock containing methyl acetate and/or dimethyl ether with carbon monoxide in the presence of a homogeneous rhodium catalyst and methyl iodide in a reactor vessel which contains a substantially anhydrous liquid reaction mixture including acetic acid, acetic anhydride, methyl acetate and/or dimethyl ether, methyl iodide and the homogeneous catalyst, the reactor vessel being operated at a reactor pressure; (b) withdrawing reaction mixture from the reaction vessel and feeding the withdrawn reaction mixture along with additional carbon monoxide to a pre-flasher/post reactor vessel operated at a reduced pressure below the reactor vessel pressure; (c) venting light ends in the pre-flasher vessel and concurrently consuming methyl acetate and/or dimethyl ether in the pre-flasher/post reactor vessel to produce a pre-flash mixture which is enriched in acetic anhydride and diminished in methyl iodide and methyl acetate and/or dimethyl ether as compared with the reaction mixture; (d) withdrawing the pre-flash reaction mixture from the pre-flasher/post reactor vessel and feeding the pre-flash mixture to a flash vessel; and (e) flashing a crude product stream from the mixture in a flash vessel operated at a pressure substantially below the pressure of the pre-flasher/post reactor vessel.
Abstract translation: 一种制备乙酸酐或乙酸酐和乙酸的混合物的方法，包括：（a）在均匀的铑催化剂和甲基碘存在下在反应器容器中催化反应含有乙酸甲酯和/或二甲醚的原料与一氧化碳 其包含基本上无水的液体反应混合物，包括乙酸，乙酸酐，乙酸甲酯和/或二甲醚，甲基碘和均相催化剂，反应器容器在反应器压力下操作; （b）从反应容器中取出反应混合物，并将排出的反应混合物与另外的一氧化碳一起送入反应器/反应器前的反应器容器中，该反应器容器在低于反应器容器压力的压力下操作; （c）在预闪蒸器容器内放出轻质的末端，同时在预闪蒸发器/反应器容器中消耗乙酸甲酯和/或二甲醚，以产生富含乙酸酐并在甲基碘中减少的预闪蒸混合物， 与反应混合物相比，乙酸甲酯和/或二甲醚; （d）将预闪蒸反应混合物从预闪蒸发器/反应堆容器中取出并将预闪蒸混合物送入闪蒸容器; 和（e）在以基本上低于预闪蒸发器/反应器反应器容器的压力的压力下操作的闪蒸容器中从混合物中闪蒸粗产物流。
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3.发明申请INTEGRATED PROCESS FOR PRODUCING POLYVINYL ALCOHOL OR A COPOLYMER THEREOF AND ETHANOL 审中-公开用于生产聚乙烯醇或其共聚物和乙醇的一体化方法公开(公告)号：US20130137903A1
公开(公告)日：2013-05-30
申请号：US13305129
申请日：2011-11-28
Applicant: Mark O. Scates
Inventor： Mark O. Scates
IPC: C07C27/04
CPC classification number: C07C29/149 , C07C51/12 , C07C51/54 , C07C67/03 , C08F8/12 , C08F16/06 , Y02P20/125 , C07C69/14 , C07C53/12 , C07C53/08 , C07C31/08 , C08F18/08
Abstract: Ethanol is produced from acetic acid or acetic anhydride or a mixture of acetic acid and acetic anhydride by a hydrogenation reaction. The acetic acid or acetic anhydride or a mixture of acetic acid and acetic anhydride is produced from methyl acetate by a carbonylation reaction. The methyl acetate is produced as a byproduct during the conversion of a vinyl acetate polymer or copolymer to a polymer or copolymer of vinyl alcohol. By integrating processes as described herein, a valuable product, i.e. ethanol, is produced from a methyl acetate byproduct.
Abstract translation: 通过氢化反应由乙酸或乙酸酐或乙酸和乙酸酐的混合物制备乙醇。 通过羰基化反应由乙酸甲酯生产乙酸或乙酸酐或乙酸和乙酸酐的混合物。 在将乙酸乙烯酯聚合物或共聚物转化为乙烯醇的聚合物或共聚物期间，乙酸甲酯作为副产物生产。 通过如本文所述的整合方法，有价值的产物即乙醇由乙酸甲酯副产物生产。
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公开(公告)号：US08247607B2
公开(公告)日：2012-08-21
申请号：US12086430
申请日：2006-11-22
Applicant: Richard Beavis , Sean Anthony Hennigan , Michael James Muskett
Inventor： Richard Beavis , Sean Anthony Hennigan , Michael James Muskett
IPC: C07C51/12
CPC classification number: C07C51/44 , C07C51/12 , Y02P20/582 , C07C53/12 , C07C53/08
Abstract: Process for carbonylating an alcohol or reactive derivative thereof, by (a) feeding one or more feed streams to a reaction zone, at least one feed stream containing an alcohol or reactive derivative thereof, and at least one feed stream contains CO, (b) maintaining in the reaction zone a temperature and pressure sufficient to allow an exothermic carbonylation reaction to occur to produce a carboxylic acid or carboxylic acid anhydride, (c) removing one or more product streams containing carboxylic acid or carboxylic acid anhydride from the reaction zone, and (d) transferring heat contained in one or more product streams to a first heat-exchange stream. Heat is transferred from a second heat-exchange stream to a feed stream of step (a) before the feed stream is fed to the reaction zone, and the temperature of the second heat-exchange stream before heat transfer is lower than that of the one or more product streams.
Abstract translation: 通过（a）将一种或多种进料流进料到反应区，至少一种含有醇或其反应性衍生物的进料流和至少一种进料流含有CO，（b） 在反应区中维持足以允许发生放热羰基化反应以产生羧酸或羧酸酐的温度和压力，（c）从反应区除去含有羧酸或羧酸酐的一种或多种产物流，以及 （d）将包含在一个或多个产物流中的热量转移到第一热交换流。 在将进料流送入反应区之前，将热量从第二热交换流转移到步骤（a）的进料流，并且在传热之前的第二热交换流的温度低于一个 或更多的产品流。
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公开(公告)号：US20120123156A1
公开(公告)日：2012-05-17
申请号：US13289518
申请日：2011-11-04
Applicant: Gregory Abbott Wellman, JR. , Brandon Tyler Earls , Robert Sterling Kline
CPC classification number: C07C51/12 , C07C51/54 , Y02P20/582 , C07C53/08 , C07C53/12
Abstract: Disclosed is a process for the coproduction of acetic acid and acetic anhydride by producing in a first carbonylation reactor a carbonylation product mixture containing acetic anhydride, removing the carbonylation mixture from the first carbonylation reactor, contacting the carbonylation mixture with methanol to react with and convert some or all of the acetic anhydride contained in the mixture to acetic acid and methyl acetate, feeding the resulting reaction composition to a second carbonylation reactor and contacting the reaction composition to carbonylation.
Abstract translation: 公开了一种通过在第一羰基化反应器中生产含有乙酸酐的羰基化产物混合物，从第一羰基化反应器中除去羰基化混合物，使羰基化混合物与甲醇反应并将其转化为一些方法来共同生产乙酸和乙酸酐的方法 或所有混合物中所含的乙酸酐与乙酸和乙酸甲酯反应，将得到的反应组合物加入到第二羰基化反应器中并使反应组合物与羰基化反应。
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Patent Agency Ranking
公开(公告)号：US20090177007A1
公开(公告)日：2009-07-09
申请号：US12150524
申请日：2008-04-29
Applicant: Chi He Chen , Ching Liang Tu , Chia Hui Shen
Inventor： Chi He Chen , Ching Liang Tu , Chia Hui Shen
IPC: C07C51/56
Abstract: The present invention relates to a process for producing carboxylic acid anhydrides, in which a carboxylic acid ester, derived from an alcohol and a carboxylic acid, and carbon monoxide containing a small amount of hydrogen are used as raw materials and subjected to a carbonylation reaction in a liquid reaction medium in the presence of a Group VIII B catalyst to produce a carboxylic acid anhydride. The reaction medium comprises the Group VIII B catalyst, an organic halide, the carboxylic acid ester, an alkali metal salt, at least one organic promoter, the carboxylic acid anhydride and the carboxylic acid, wherein the organic promoter is selected from at least one of the following structural forms (I), (II) and (III). According to the process of the present invention, the reaction rate of the carbonylation reaction is increased by the use of the specified organic promoters.
Abstract translation: 本发明涉及一种制备羧酸酐的方法，其中使用衍生自醇和羧酸的羧酸酯和含有少量氢的一氧化碳作为原料并进行羰基化反应 在第VIIIB族催化剂存在下的液体反应介质以产生羧酸酐。 反应介质包括VIII族B催化剂，有机卤化物，羧酸酯，碱金属盐，至少一种有机促进剂，羧酸酐和羧酸，其中有机促进剂选自以下的至少一种： 以下结构形式（I），（II）和（III）。 根据本发明的方法，羰基化反应的反应速率通过使用规定的有机促进剂而增加。
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公开(公告)号：US20090005585A1
公开(公告)日：2009-01-01
申请号：US12136508
申请日：2008-06-10
Applicant: Abbas Hassan , Ebrahim Bagherzadeh , Rayford G. Anthony , Gregory Borsinger , Aziz Hassan
Inventor： Abbas Hassan , Ebrahim Bagherzadeh , Rayford G. Anthony , Gregory Borsinger , Aziz Hassan
CPC classification number: C07C51/56 , B01F7/00766 , B01F13/1013 , B01F13/1016 , B01J8/025 , B01J8/20 , B01J19/0066 , B01J19/1806 , B01J2219/00006 , B01J2219/00779 , Y02P20/582 , C07C53/12
Abstract: A system and method for a high shear mechanical device incorporated into a process for the production of acetic anhydride as a reactor device is shown to be capable of decreasing mass transfer limitations, thereby enhancing the process. A system for the production of acetic anhydride including the mixing of catalyst and acetic acid via a high shear device.
Abstract translation: 结合到生产乙酸酐作为反应器装置的方法中的高剪切机械装置的系统和方法被证明能够降低传质限制，从而增强该方法。 一种用于生产乙酸酐的系统，包括通过高剪切装置混合催化剂和乙酸。
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8.发明申请Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream 有权用于生产羰基化乙酸，乙酸酐或由乙酸甲酯副产物流共同生产的一体化方法公开(公告)号：US20070197822A1
公开(公告)日：2007-08-23
申请号：US11508777
申请日：2006-11-22
Applicant: Wayne Picard , Mark Scates , Stephen Webb , Duane Usrey
Inventor： Wayne Picard , Mark Scates , Stephen Webb , Duane Usrey
IPC: C07C67/36
CPC classification number: C07C51/12 , C07C51/56 , C07C67/03 , C07C67/54 , Y02P20/125 , C07C53/08 , C07C69/14 , C07C53/12
Abstract: The present invention is directed to using methyl acetate from a vinyl acetate-based or a vinyl-or ethylene-alcohol based polymer or copolymer process directly for use in a methanol carbonylation production process to produce acetic acid, acetic anhydride, or a coproduction of each. Methyl acetate is a by-product of commercial polyvinyl-alcohol or alkene vinyl alcohol copolymer-based processes. Generally, this material is processed to recover methanol and acetic acid. Discussed herein is a cost-saving scheme to by-pass the methyl acetate processing at production or plant facilities and utilize the methyl acetate in an integrated methanol carbonylation unit. The scheme discussed eliminates an expensive hydrolysis step often associated with the polymer process.
Abstract translation: 本发明涉及使用乙酸乙烯酯或乙烯基或乙烯 - 醇基聚合物或共聚物方法的乙酸甲酯直接用于甲醇羰基化生产方法中以产生乙酸，乙酸酐或每种 。 乙酸甲酯是市售的聚乙烯醇或烯烃乙烯醇共聚物的工艺的副产物。 通常，将该材料加工以回收甲醇和乙酸。 本文讨论的是节省成本的方案，用于在生产或设备设施旁边旁通乙酸甲酯处理，并在一体化甲醇羰基化单元中使用乙酸甲酯。 所讨论的方案消除了通常与聚合物方法相关的昂贵的水解步骤。
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公开(公告)号：US07199263B2
公开(公告)日：2007-04-03
申请号：US10920688
申请日：2004-08-18
Applicant: R. Jay Warner
Inventor： R. Jay Warner
Abstract: A method of co-producing acetic anhydride and an acetate ester includes pyrolizing acetic acid at elevated temperature to produce a first ketene stream, the first ketene stream being a vapor phase stream comprising ketene, acetic acid and water; cooling the first ketene stream to condense acetic acid and water therefrom, thereby generating (i) a weak acid aqueous stream and (ii) a ketene feed stream; feeding the ketene feed stream to an acetic anhydride reactor where the ketene is reacted with acetic acid to produce acetic anhydride; concurrently with step (c), feeding the weak acid aqueous stream to an esterification reactor wherein acetic acid in the weak acid stream is reacted with an organic alcohol to produce an acetate ester. Preferably, the organic alcohol is selected from organic alcohols which (i) form acetate esters which esters and optionally alcohols provide azeotropic mixtures with water and (ii) wherein the azeotropic mixtures have a water content greater than the amount of water generated by reaction of the alcohol with acetic acid to facilitate azeotropically separating the acetate ester from the reaction mixture.
Abstract translation: 共生产乙酸酐和乙酸酯的方法包括在升高的温度下热解乙酸以产生第一乙烯酮流，第一乙烯酮流是包含乙烯酮，乙酸和水的气相物流; 冷却第一个乙烯酮流以从其中冷凝乙酸和水，从而产生（i）弱酸水流和（ii）乙烯酮进料流; 将乙烯酮进料流进料到乙酸酐反应器中，其中乙烯酮与乙酸反应生成乙酸酐; 与步骤（c）同时，将弱酸性水流进料到酯化反应器中，其中弱酸流中的乙酸与有机醇反应以产生乙酸酯。 优选地，有机醇选自（i）形成乙酸酯的有机醇，其酯和任选的醇与水提供共沸混合物，和（ii）其中共沸混合物的水含量大于通过反应产生的水的量 乙醇与乙酸共沸以促进乙酸酯与反应混合物的共沸分离。
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公开(公告)号：US07115772B2
公开(公告)日：2006-10-03
申请号：US10324648
申请日：2002-12-19
Applicant: Wayne David Picard , Mark O. Scates , Stephen Charles Webb , Duane Lyle Usrey
Inventor： Wayne David Picard , Mark O. Scates , Stephen Charles Webb , Duane Lyle Usrey
IPC: C07C67/48
CPC classification number: C07C51/12 , C07C51/56 , C07C67/03 , C07C67/54 , Y02P20/125 , C07C53/08 , C07C69/14 , C07C53/12
Abstract: The present invention is directed to using methyl acetate from a vinyl acetate-based or a vinyl-or ethylene-alcohol based polymer or copolymer process directly for use in a methanol carbonylation production process to produce acetic acid, acetic anhydride, or a coproduction of each.Methyl acetate is a by-product of commercial polyvinyl-alcohol or alkene vinyl alcohol copolymer-based processes. Generally, this material is processed to recover methanol and acetic acid. Discussed herein is a cost-saving scheme to by-pass the methyl acetate processing at production or plant facilities and utilize the methyl acetate in an integrated methanol carbonylation unit. The scheme discussed eliminates an expensive hydrolysis step often associated with the polymer process.
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