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公开(公告)号：US20110269992A1
公开(公告)日：2011-11-03
申请号：US12799663
申请日：2010-04-29
IPC分类号： C07C51/12
CPC分类号： C07C51/12 , B01J31/0267 , B01J31/04 , B01J31/1875 , B01J2531/822 , C07C53/12 , C07C53/08
摘要： Disclosed is a process for the preparation of acetic acid and acetic anhydride. The process comprises carbonylating dimethyl carbonate. The carbonylation reaction for producing acetic acid is performed in the presence of water, while the carbonylation for producing acetic anhydride is performed essentially in the absence of water.
摘要翻译： 公开了一种制备乙酸和乙酸酐的方法。 该方法包括羰基化碳酸二甲酯。 用于生产乙酸的羰基化反应在水的存在下进行，而用于生产乙酸酐的羰基化基本上在不存在水的情况下进行。
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2.发明授权公开(公告)号：US08912358B2
公开(公告)日：2014-12-16
申请号：US14052863
申请日：2013-10-14
申请人： Noel Hallinan , Brian A. Salisbury , Shao-hua Guo
发明人： Noel Hallinan , Brian A. Salisbury , Shao-hua Guo
CPC分类号： C07C51/12 , C07C51/445 , C07C51/48 , C07C53/08
摘要： A method for removing hydrocarbon impurities from an acetic acid production intermediate is disclosed. The method comprises extracting the intermediate with a hydrocarbon extracting agent. The extraction is preferably performed with the alkane distillation bottom stream which comprises methyl iodide, acetic acid, and hydrocarbon impurities. The extraction forms a light phase which comprises the hydrocarbon impurity and the extracting agent and a heavy phase which comprises methyl iodide and acetic acid. The extraction heavy phase is optionally recycled to the alkane distillation or to the carbonylation reaction.
摘要翻译： 公开了从乙酸生产中间体中除去烃杂质的方法。 该方法包括用烃提取剂萃取中间体。 萃取优选用包括甲基碘，乙酸和烃杂质的烷烃蒸馏塔底料进行。 提取形成包含烃杂质和萃取剂的轻相，以及包含甲基碘和乙酸的重相。 提取重相可选地循环到烷烃蒸馏或羰基化反应。
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3.发明申请公开(公告)号：US20100249453A1
公开(公告)日：2010-09-30
申请号：US12383896
申请日：2009-03-30
申请人： Noel Hallinan , Brian A. Salisbury , Shao-Hua Guo
发明人： Noel Hallinan , Brian A. Salisbury , Shao-Hua Guo
IPC分类号： C07C51/12
CPC分类号： C07C51/12 , C07C51/445 , C07C51/48 , C07C53/08
摘要： A method for removing hydrocarbon impurities from an acetic acid production intermediate is disclosed. The method comprises extracting the intermediate with a hydrocarbon extracting agent. The extraction is preferably performed with the alkane distillation bottom stream which comprises methyl iodide, acetic acid, and hydrocarbon impurities. The extraction forms a light phase which comprises the hydrocarbon impurity and the extracting agent and a heavy phase which comprises methyl iodide and acetic acid. The extraction heavy phase is optionally recycled to the alkane distillation or to the carbonylation reaction.
摘要翻译： 公开了从乙酸生产中间体中除去烃杂质的方法。 该方法包括用烃提取剂萃取中间体。 萃取优选用包括甲基碘，乙酸和烃杂质的烷烃蒸馏塔底料进行。 提取形成包含烃杂质和萃取剂的轻相，以及包含甲基碘和乙酸的重相。 提取重相可选地循环到烷烃蒸馏或羰基化反应。
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4.发明授权公开(公告)号：US08586789B2
公开(公告)日：2013-11-19
申请号：US12383896
申请日：2009-03-30
申请人： Noel Hallinan , Brian A. Salisbury , Shao-Hua Guo
发明人： Noel Hallinan , Brian A. Salisbury , Shao-Hua Guo
IPC分类号： C07C51/42
CPC分类号： C07C51/12 , C07C51/445 , C07C51/48 , C07C53/08
摘要： A method for removing hydrocarbon impurities from an acetic acid production intermediate is disclosed. The method comprises extracting the intermediate with a hydrocarbon extracting agent. The extraction is preferably performed with the alkane distillation bottom stream which comprises methyl iodide, acetic acid, and hydrocarbon impurities. The extraction forms a light phase which comprises the hydrocarbon impurity and the extracting agent and a heavy phase which comprises methyl iodide and acetic acid. The extraction heavy phase is optionally recycled to the alkane distillation or to the carbonylation reaction.
摘要翻译： 公开了从乙酸生产中间体中除去烃杂质的方法。 该方法包括用烃提取剂萃取中间体。 萃取优选用包括甲基碘，乙酸和烃杂质的烷烃蒸馏塔底料进行。 提取形成包含烃杂质和萃取剂的轻相，以及包含甲基碘和乙酸的重相。 提取重相可选地循环到烷烃蒸馏或羰基化反应。
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公开(公告)号：US20110137075A1
公开(公告)日：2011-06-09
申请号：US12653144
申请日：2009-12-09
IPC分类号： C07C67/00
CPC分类号： C07C67/055 , Y02P20/127 , C07C69/01 , C07C69/15
摘要： A process for the production of vinyl acetate is disclosed. The process comprises reacting ethylene, acetic acid, and oxygen in the presence of a catalyst to produce a reaction mixture comprising vinyl acetate, ethylene, carbon dioxide, acetic acid, water and ethylene glycol diacetate. The reaction mixture is separated to a gas stream comprising ethylene, and carbon dioxide and a crude vinyl acetate stream comprising vinyl acetate, acetic acid, water and ethylene glycol diacetate. An ethylene glycol diacetate stream is isolated from the crude vinyl acetate stream and subjected to a reactive distillation to recover acetic acid.
摘要翻译： 公开了一种生产乙酸乙烯酯的方法。 该方法包括在催化剂存在下使乙烯，乙酸和氧气反应以产生包含乙酸乙烯酯，乙烯，二氧化碳，乙酸，水和乙二醇二乙酸酯的反应混合物。 将反应混合物分离成包含乙烯和二氧化碳的气流以及包含乙酸乙烯酯，乙酸，水和乙二醇二乙酸酯的粗乙酸乙烯酯料流。 从粗乙酸乙烯酯流中分离乙二醇二乙酸物流，并进行反应蒸馏以回收乙酸。
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公开(公告)号：US20110087047A1
公开(公告)日：2011-04-14
申请号：US12587580
申请日：2009-10-09
IPC分类号： C07C67/00
CPC分类号： C07C67/055 , C07C69/01 , C07C69/15
摘要： A process for the production of vinyl acetate is disclosed. The process comprises reacting ethylene, acetic acid, and oxygen in the presence of a catalyst to produce a reaction mixture comprising vinyl acetate, ethylene, carbon dioxide, acetic acid and ethylene glycol diacetate. The reaction mixture is separated to a gas stream comprising ethylene, oxygen, and carbon dioxide and a crude vinyl acetate stream comprising vinyl acetate, acetic acid and ethylene glycol diacetate. An ethylene glycol diacetate stream, which comprises at least 50 wt % of ethylene glycol diacetate, is isolated from the crude vinyl acetate stream and hydrolyzed to recover acetic acid. Recovered acetic acid may be recycled to the acetoxidation reaction.
摘要翻译： 公开了一种生产乙酸乙烯酯的方法。 该方法包括在催化剂存在下使乙烯，乙酸和氧气反应，以产生包含乙酸乙烯酯，乙烯，二氧化碳，乙酸和乙二醇二乙酸酯的反应混合物。 将反应混合物分离成包含乙烯，氧气和二氧化碳的气流和包含乙酸乙烯酯，乙酸和乙二醇二乙酸酯的粗乙酸乙烯酯流。 包含至少50重量％的乙二醇二乙酸酯的乙二醇二乙酸酯流从粗乙酸乙烯酯流中分离并水解回收乙酸。 回收的乙酸可以再循环到乙酰化反应中。
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公开(公告)号：US20130345474A1
公开(公告)日：2013-12-26
申请号：US13531987
申请日：2012-06-25
摘要： A process for producing acetic acid includes: obtaining hydrogen iodide in an acetic acid production system; and continually introducing a complexing agent into the system, wherein the complexing agent and hydrogen iodide interact to form a complex.
摘要翻译： 制备乙酸的方法包括：在乙酸生产系统中获得碘化氢; 并且将络合剂持续引入该体系中，其中络合剂和碘化氢相互作用形成络合物。
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公开(公告)号：US08394987B2
公开(公告)日：2013-03-12
申请号：US12802941
申请日：2010-06-17
CPC分类号： C07C51/12 , C07C51/47 , C07C51/487 , C07C53/08
摘要： The invention is a method of removing methyl iodide from an alkane distillation bottoms stream of an acetic acid production process. The method comprises contacting the alkane distillation bottoms stream in the liquid phase with a phosphine or a phosphine-functionalized support, and recovering a treated alkane distillation bottoms stream having a reduced methyl iodide content.
摘要翻译： 本发明是从乙酸生产过程的烷烃蒸馏塔底物流中除去甲基碘的方法。 该方法包括使液相中的烷烃蒸馏塔底物流与膦或膦官能化的载体接触，并回收具有降低的甲基碘含量的经处理的烷烃蒸馏塔底物流。
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公开(公告)号：US20090229966A1
公开(公告)日：2009-09-17
申请号：US12077098
申请日：2008-03-17
IPC分类号： B01D3/34
摘要： A method for removing hydrocarbon impurities from an acetic acid production process is disclosed. The method comprises distilling at least a portion of the heavy organic phase from the decanter of the acetic acid production process into a vapor stream comprising the majority of methyl iodide (i.e., over 50% of the methyl iodide from the heavy organic phase) and a bottoms stream comprising the majority of acetic acid, methyl acetate, methyl iodide and the hydrocarbon impurity (i.e., over 50% of each of the components from the heavy organic phase); extracting the bottoms stream with water, an acetic acid aqueous solution, or with a methanol aqueous solution to form an organic phase comprising the majority of the hydrocarbon impurity (over 50% of the hydrocarbon impurity from the bottom stream) and an aqueous phase comprising the majority of methyl iodide (over 50% of the methyl iodide from the bottoms stream); and recycling the aqueous phase to the carbonylation reaction.
摘要翻译： 公开了一种从乙酸生产过程中除去烃杂质的方法。 该方法包括将至少一部分重质有机相从乙酸生产过程的倾析器中蒸馏成包含大部分甲基碘的蒸气流（即，来自重质有机相的甲基碘的50％以上）和 包括大部分乙酸，乙酸甲酯，甲基碘和烃杂质的底部物流（即，来自重质有机相的每种组分的超过50％）; 用水，乙酸水溶液或甲醇水溶液萃取塔底物流，形成包含大部分烃杂质（超过50％的来自底部物流的烃杂质）的有机相和含有 大多数甲基碘（来自底部物流的甲基碘的50％以上）; 并将水相再循环到羰基化反应中。
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公开(公告)号：US07485749B2
公开(公告)日：2009-02-03
申请号：US11508109
申请日：2006-08-22
IPC分类号： C07C51/42
CPC分类号： C07C51/487 , C07C53/08
摘要： A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting aldehyde impurities with a hydroxyl compound in a drying distillation column or a combined column to form corresponding acetals. The acetals are subsequently removed as heavy impurities from acetic acid by distillation.
摘要翻译： 公开了从乙酸流中除去醛杂质的方法。 该方法包括在干燥蒸馏塔或组合塔中使醛杂质与羟基化合物反应以形成相应的缩醛。 随后通过蒸馏从乙酸中除去缩醛作为重杂质。
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