Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream
    41.
    发明授权
    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:US07812192B2

    公开(公告)日:2010-10-12

    申请号:US11508775

    申请日:2006-08-23

    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基或乙烯基或乙烯 - 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。

    Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream
    42.
    发明授权
    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:US07772422B2

    公开(公告)日:2010-08-10

    申请号:US11508778

    申请日:2006-08-23

    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。

    Production of acetic acid and mixtures of acetic acid and acetic anhydride
    43.
    发明授权
    Production of acetic acid and mixtures of acetic acid and acetic anhydride 有权
    生产乙酸和乙酸和乙酸酐的混合物

    公开(公告)号:US07737298B2

    公开(公告)日:2010-06-15

    申请号:US11423383

    申请日:2006-06-09

    CPC classification number: C07C51/12 C07C51/56 C07C53/08 C07C53/12

    Abstract: Disclosed is a process for the production of acetic acid or mixtures of acetic acid and acetic anhydride in a carbonylation process wherein a mixture comprising methyl acetate and/or dimethyl ether and methyl iodide is contacting in the liquid phase with carbon monoxide in the presence of a carbonylation catalyst at elevated pressures and temperatures. Methanol, water, or a mixture thereof is added to an acetic anhydride-containing stream within a flash evaporation zone to convert some or all of the acetic anhydride to acetic acid and optionally methyl acetate and to provide heat for the evaporation of a portion of the product effluent produced by the carbonylation process.

    Abstract translation: 公开了一种在羰基化方法中生产乙酸或乙酸和乙酸酐的混合物的方法,其中包含乙酸甲酯和/或二甲醚和甲基碘的混合物在液相中与一氧化碳接触, 羰基化催化剂在升高的压力和温度下。 将甲醇,水或其混合物加入到闪蒸蒸发区内的含乙酸酐的流中,以将部分或全部乙酸酐转化为乙酸和任选的乙酸甲酯,并提供热量以蒸发一部分 通过羰基化方法生产的产品流出物。

    Carbonylation Process
    44.
    发明申请
    Carbonylation Process 有权
    羰基化过程

    公开(公告)号:US20090299092A1

    公开(公告)日:2009-12-03

    申请号:US12086430

    申请日:2006-11-22

    CPC classification number: C07C51/44 C07C51/12 Y02P20/582 C07C53/12 C07C53/08

    Abstract: A process for the carbonylation of an alcohol and/or reactive derivative thereof, in which one or more reaction zone feed streams are fed to a reaction zone in which exothermic carbonylation takes place to produce one or more product streams. Heat from at least a portion of the one or more product streams is fed to a first heat-exchange stream, such as a supply of pressurised steam. The process is characterised by heat from a second heat-exchange stream, having a temperature lower than that of the one or more product streams, being transferred to a reaction zone feed stream, so that the one or more product streams comprise heat originating from the second heat-exchange stream and heat generated by the exothermic carbonylation reaction. Thus, heat originating from the second heat-exchange stream can be transferred to the first heat-exchange stream, resulting in reduced heat loss and greater process efficiency.

    Abstract translation: 一种醇和/或其活性衍生物的羰基化方法,其中将一个或多个反应区进料流进料到发生放热羰基化反应的反应区以产生一种或多种产物流。 来自一个或多个产物流的至少一部分的热量被供给到第一热交换流,例如加压蒸汽的供应。 该方法的特征在于具有低于一种或多种产物流的温度的第二热交换流的热量被转移到反应区进料流,使得一个或多个产物流包含源自 第二热交换流和由放热羰基化反应产生的热量。 因此,来自第二热交换流的热可以被转移到第一热交换流,导致热损失减少和更高的处理效率。

    Carbonylation process
    45.
    发明授权
    Carbonylation process 失效
    羰基化过程

    公开(公告)号:US07253304B1

    公开(公告)日:2007-08-07

    申请号:US11425220

    申请日:2006-06-20

    CPC classification number: C07C51/145 C07C53/12 C07C53/08

    Abstract: Disclosed is a carbonylation process wherein a mixture of a dialkyl carbonate and halide compound is contacted with carbon monoxide in the presence of a metal selected from Group VIII of the Periodic Table to co-produce carbon dioxide and a carbonyl compound selected from a carboxylic acid, an alkyl carboxylate ester, a carboxylic acid anhydride or a mixture of any two or more thereof. The carbon dioxide co-product of the process may be recovered, and sold or further reacted with a suitable substrate to produce useful chemicals such as urea or cyclic carbonates.

    Abstract translation: 公开了一种羰基化方法,其中碳酸二烷基酯和卤化物化合物的混合物在选自元素周期表Ⅷ族的金属的存在下与一氧化碳接触,共同生产二氧化碳和羰基化合物,其选自羧酸, 烷基羧酸酯,羧酸酐或其任何两种或更多种的混合物。 可以回收该方法的二氧化碳共同产物,并且与合适的底物进行销售或进一步反应以产生有用的化学物质,例如脲或环状碳酸酯。

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