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公开(公告)号：EP2414315B1
公开(公告)日：2013-09-18
申请号：EP10708662.1
申请日：2010-03-05
CPC分类号： C07C51/12 , C07C51/445 , C07C51/48 , C07C53/08
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公开(公告)号：EP2920137A1
公开(公告)日：2015-09-23
申请号：EP13854796.3
申请日：2013-11-12
摘要： Embodiments of the present disclosure include methods of effecting process control in a reaction system for the production of 1,4-butanediol, the method including determining at least one property of a sample from the reaction system using Raman spectroscopy, and adjusting at least one parameter of the reaction system in response to the at least one determined property. Embodiments may also include methods of producing 1,4-butanediol, the method including reacting allyl alcohol with carbon monoxide and hydrogen in the presence of a solvent and a catalyst to produce a reactor fluid, sampling the reaction, determining at least one property of the sample using Raman spectroscopy, and adjusting the reaction in response to the at least one determined property.
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公开(公告)号：EP2630471A1
公开(公告)日：2013-08-28
申请号：EP11776664.2
申请日：2011-10-18
CPC分类号： G01N21/65 , C07C51/12 , G01N2021/8416 , C07C53/08
摘要： Disclosed is a method for controlling an acetic acid production process. The method comprises: (i) reacting methanol and carbon monoxide in the presence of a carbonylation catalyst, a catalyst stabilizer, methyl iodide, water, and methyl acetate to produce a reactor mixture which comprises the catalyst, the catalyst stabilizer, methanol, carbon monoxide, carbon dioxide, methyl iodide, methyl acetate, water, and acetic acid; (ii) measuring the concentration of a component of the reactor mixture by Raman spectroscopic analysis; and (iii) adjusting the component concentration in the reactor mixture in response to the measured concentration. The method of the invention is particularly useful for measuring and controlling the concentration of carbon monoxide in the reactor liquid mixture.
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公开(公告)号：EP3191443B1
公开(公告)日：2019-11-27
申请号：EP15839541.8
申请日：2015-09-08
IPC分类号： C07C45/50 , C07D233/02 , B01J31/22 , B01J23/46 , C07C47/19
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5.发明公开METHODS OF USING HOMOGENOUS RHODIUM CATALYSTS WITH N-HETEROCYCLIC CARBENE LIGANDS FOR THE HYDROFORMYLATION OF OLEFINS AND SUBSTITUTED OLEFINS 审中-公开使用含杂环碳配位体的均相铑催化剂对烯烃和取代的烯烃进行加氢甲酰化的方法
公开(公告)号：EP3191443A1
公开(公告)日：2017-07-19
申请号：EP15839541.8
申请日：2015-09-08
IPC分类号： C07C45/50 , C07C47/04 , C07D233/02 , B01J31/22 , B01J23/46
摘要： A method of using homogenous rhodium catalysts comprising N-heterocyclic carbene ligands for the hydroformylation of olefins and substituted olefins is provided. In some aspects, the methods provided herein relate to the hydroformylation of allyl alcohol to 4-hydroxybutaldehyde in the presence of a rhodium catalyst which contains one or more N-heterocyclic carbene ligands of the formula: wherein R1, R2, R3, and R4 are defined herein.
摘要翻译： 提供了使用包含N-杂环卡宾配体的均相铑催化剂用于烯烃和取代烯烃的加氢甲酰化的方法。 在一些方面，本文提供的方法涉及在含有一个或多个下式的N-杂环卡宾配体的铑催化剂存在下将烯丙醇加氢甲酰化为4-羟基丁醛：其中R 1，R 2，R 3和R 4是 在此定义。
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公开(公告)号：EP2681183A1
公开(公告)日：2014-01-08
申请号：EP12716782.3
申请日：2012-02-27
摘要： A method for determining the characteristic of one or more components in a step of an acetic acid production process using Raman spectroscopy. The process includes providing a feed stream comprising multiple components to a separations unit, one of the components being acetic acid, the separations unit separating the feed stream into two or more exit streams having a different composition from one another, and measuring a characteristic of one or more of the components by Raman spectroscopic analysis.
摘要翻译： 一种用于使用拉曼光谱确定乙酸生产过程的步骤中的一种或多种组分的特性的方法。 该方法包括将包含多种组分的进料流提供给分离单元，其中一种组分为乙酸，分离单元将进料流分离成具有彼此不同组成的两种或更多种出口流，并且测量一种 或更多的组分通过拉曼光谱分析。
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公开(公告)号：EP2414315A1
公开(公告)日：2012-02-08
申请号：EP10708662.1
申请日：2010-03-05
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.
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公开(公告)号：EP2643287A2
公开(公告)日：2013-10-02
申请号：EP11796856.0
申请日：2011-11-23
CPC分类号： C07C67/055 , B01J8/24 , B01J23/44 , B01J23/52 , B01J2208/00274 , B01J2219/00006 , B01J2219/00202 , B01J2219/0022 , B01J2219/00231 , B01J2219/00238 , G01N21/65 , C07C69/15
摘要： Disclosed is a method for controlling a vinyl acetate production process. The method comprises reacting ethylene, acetic acid, and an oxygen-containing gas in the presence of a catalyst in a reactor to produce vinyl acetate, measuring the concentration of a component involved in or associated with the reaction and/or any of the subsequent steps by Raman spectroscopic analysis, and adjusting the conditions in the reactor or in any of the subsequent steps in response to the measured concentration of the component to achieve a proper control of the reaction or any of the subsequent steps.
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公开(公告)号：EP2920137B1
公开(公告)日：2019-12-25
申请号：EP13854796.3
申请日：2013-11-12
IPC分类号： C07C29/141 , C07C29/16 , C07C31/20
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公开(公告)号：EP2470489A2
公开(公告)日：2012-07-04
申请号：EP10737396.1
申请日：2010-07-19
IPC分类号： C07C51/12
摘要： A method for reducing aldehydes in an acetic acid production process is disclosed. The acetic acid is produced by reacting methanol and carbon monoxide in the presence of a carbonylation catalyst. The method comprises reacting an aldehyde-containing stream with an alcohol to form an acetal-containing stream. An acetal-enriched stream is separated from the acetal-containing stream and then hydrolyzed to form a hydrolysis mixture comprising the alcohol and the aldehydes. The alcohol is isolated from the hydrolysis mixture and used to react with the aldehyde-containing stream to form the acetal-containing stream. The invention reduces aldehydes in the acetic acid produced.
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