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公开(公告)号：US07465823B2
公开(公告)日：2008-12-16
申请号：US10802506
申请日：2004-03-17
摘要： Integrated processes and systems for producing acetic acid and vinyl acetate are provided. In the processes and systems, a portion of the heat produced during the production of the acetic acid is transferred to the vinyl acetate production and/or purification process and system to facilitate production and/or purification of the vinyl acetate product. The process and systems described herein are useful in conjunction with any of the various known processes for the production of acetic acid and vinyl acetate. The heat of the acetic acid production reaction may be transferred to the vinyl acetate production system by any suitable heat transfer processes and systems. The heat may be provided to the purification section at a variety of locations in the vinyl acetate production and purification systems, depending on the specific configuration of the system to which the processes and systems. The process and systems described herein are useful to provide cost and energy savings in vinyl acetate production processes.
摘要翻译： 提供了用于生产乙酸和乙酸乙烯酯的一体化方法和系统。 在该方法和系统中，在乙酸生产过程中产生的热量的一部分转移到乙酸乙烯酯生产和/或纯化过程和系统中，以促进乙酸乙烯酯产物的生产和/或纯化。 本文所述的方法和系统可用于生产乙酸和乙酸乙烯酯的各种已知方法中的任何一种。 乙酸生产反应的热量可以通过任何合适的传热过程和系统转移到乙酸乙烯酯生产系统中。 取决于过程和系统的系统的具体配置，可以在乙酸乙烯酯生产和净化系统中的各种位置处向纯化部分提供热量。 本文所述的方法和系统可用于在乙酸乙烯酯生产方法中提供成本和能量节省。
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公开(公告)号：US07390918B2
公开(公告)日：2008-06-24
申请号：US10500305
申请日：2002-12-04
CPC分类号： C07C67/54 , C07C5/48 , C07C51/215 , C07C51/46 , C07C67/055 , Y02P20/125 , Y02P20/582 , C07C69/15 , C07C53/08 , C07C11/04
摘要： An integrated process for the production of an alkenyl carboxylate, such as vinyl acetate which process comprises the steps of (a) contacting in an oxidation reaction zone a C2 to C4 alkane, such as ethane, a molecular oxygen-containing gas, optionally the corresponding alkene and optionally water, in the presence of a catalyst to produce a stream comprising alkene, carboxylic acid and water; (b) separating at least a portion of the stream from step (a) into a fraction comprising the alkene and a fraction comprising the carboxylic acid and water; (c) contacting in a second reaction zone at least a portion of said alkene fraction produced in step (b), a carboxylic acid and a molecular oxygen-containing gas, in the presence of a catalyst to produce a product stream comprising an alkenyl carboxylate, water and carboxylic acid; (d) separating at least a portion of the product stream from step (c) and at least a portion of the carboxylic acid and water fraction produced in step (b) by azeotropic distillation into an overhead fraction comprising the alkenyl carboxylate and a base fraction comprising the carboxylic acid; (e) recovering the alkenyl carboxylate from the overhead fraction separated in step (d).
摘要翻译： 一种用于生产烯基羧酸酯（如乙酸乙烯酯）的整合方法，该方法包括以下步骤：（a）在C 2 O 2的氧化反应区与C 4 烷烃，例如乙烷，含分子氧的气体，任选地相应的烯烃和任选的水，在催化剂的存在下，产生包含烯烃，羧酸和水的流; （b）将来自步骤（a）的物流的至少一部分分离成包含烯烃的馏分和包含羧酸和水的级分; （c）在第二反应区中在催化剂存在下使步骤（b）中产生的所述烯烃馏分的至少一部分与羧酸和含分子氧的气体接触以产生包含链烯基羧酸酯的产物流 ，水和羧酸; （d）通过共沸蒸馏将步骤（c）中的产物流的至少一部分和步骤（b）中产生的羧酸和水部分的至少一部分分离成包含烯基羧酸酯和碱部分的塔顶馏分 包含羧酸; （e）从步骤（d）中分离的塔顶馏分回收烯基羧酸酯。
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公开(公告)号：US07301048B2
公开(公告)日：2007-11-27
申请号：US11484419
申请日：2006-07-11
申请人： Johann Stamm , Bernd Rinne , Stefan Hess , Hans-Jochen Sachs , Michael Sehr , Michael J. Bayer , Berthold Nuber , Martin Wagner
发明人： Johann Stamm , Bernd Rinne , Stefan Hess , Hans-Jochen Sachs , Michael Sehr , Michael J. Bayer , Berthold Nuber , Martin Wagner
IPC分类号： C07C67/48
CPC分类号： C07C67/055 , C07C67/54 , C07C69/01 , C07C69/15
摘要： A process for isolating vinyl acetate from the gas mixture formed in the reaction of ethylene with acetic acid and oxygen in the gas phase over catalysts comprising palladium or palladium compounds, with recirculation of the acetic-acid solution obtained in the circulating gas scrubber to the first distillation column (predewatering column).
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公开(公告)号：US07119224B2
公开(公告)日：2006-10-10
申请号：US10651966
申请日：2003-09-02
申请人： Juergen Schroeder , Frank Hoefer , Sylke Haremza , Gerhard Wagenblast , Volker Schliephake , Ulrich Jaeger , Harald Keller , Cedric Dieleman
发明人： Juergen Schroeder , Frank Hoefer , Sylke Haremza , Gerhard Wagenblast , Volker Schliephake , Ulrich Jaeger , Harald Keller , Cedric Dieleman
摘要： A process for preparing and/or working up mixtures by (meth)acrylic acid and/or (meth)acrylic ester in the presence of at least one polymerization inhibitor and at least one oxygenous gas, which comprises metering in at least part of the oxygenous gas at an exit rate of at least 50 mm/s.
摘要翻译： 一种在至少一种聚合抑制剂和至少一种含氧气体存在下由（甲基）丙烯酸和/或（甲基）丙烯酸酯制备和/或加工混合物的方法，该方法包括至少部分含氧量计 出口速率至少为50毫米/秒。
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公开(公告)号：US06992213B2
公开(公告)日：2006-01-31
申请号：US10791271
申请日：2004-03-03
申请人： Olaf Boese , Katja Peterkord
发明人： Olaf Boese , Katja Peterkord
IPC分类号： C07C67/48
CPC分类号： C07C68/08 , B01D15/00 , B01J20/18 , C07C67/56 , H01M6/164 , H01M10/0525 , H01M10/0569 , H01M2300/0034 , C07C69/63 , C07C69/96
摘要： Trifluoroethanol can be isolated from organic liquids that are contaminated by trifluoroethanol by bringing the contaminated liquid into contact with a molecular sieve having a pore size ranging between 0.5 and 1.0 nm, e.g., with molecular sieve 13X. This enables, for example, trifluoroacetic acid trifluoroethyl esters, bis(trifluoroethyl)carbonate or trifluoroethyl esters of phosphoric, phosphonic or phosphinic acid to be purified.
摘要翻译： 三氟乙醇可以通过使污染的液体与孔径在0.5和1.0nm之间的分子筛（例如分子筛13X）接触而从被三氟乙醇污染的有机液体中分离出来。 这使得能够纯化例如三氟乙酸三氟乙酯，二（三氟乙基）碳酸酯或磷酸，膦酸或次膦酸的三氟乙酯。
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公开(公告)号：US20050192463A1
公开(公告)日：2005-09-01
申请号：US11006803
申请日：2004-12-08
申请人： Shuhei Yada , Kenji Takasaki , Yoshiro Suzuki , Yasushi Ogawa
发明人： Shuhei Yada , Kenji Takasaki , Yoshiro Suzuki , Yasushi Ogawa
摘要： There is provided a method for storing (meth)acrylic acid or (meth)acrylic esters in a storage tank for receiving or discharging the (meth)acrylic acid or (meth)acrylic esters, which is capable of storing the (meth)acrylic acid or (meth)acrylic esters for a long period of time. According to the method of the present invention, upon storing the (meth)acrylic acid or (meth)acrylic esters in the storage tank for receiving or discharging the (meth)acrylic acid or (meth)acrylic esters, a concentration of suspended particulate matters contained in a gas phase portion of the storage tank is controlled to not more than 0.01 mg/m3.
摘要翻译： 提供了一种用于在（甲基）丙烯酸或（甲基）丙烯酸酯中储存（甲基）丙烯酸酯的方法，该方法能够储存（甲基）丙烯酸或（甲基）丙烯酸酯， 或（甲基）丙烯酸酯。 根据本发明的方法，将（甲基）丙烯酸或（甲基）丙烯酸酯储存在用于接收或排出（甲基）丙烯酸或（甲基）丙烯酸酯的储罐中时，悬浮颗粒物质的浓度 包含在储罐的气相部分中的压力控制在不大于0.01mg / m 3以下。
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公开(公告)号：US20050167362A1
公开(公告)日：2005-08-04
申请号：US11037451
申请日：2005-01-19
申请人： Yasuyuki Sakakura , Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki
发明人： Yasuyuki Sakakura , Shuhei Yada , Yasushi Ogawa , Yoshiro Suzuki
IPC分类号： B01D3/32 , B08B9/08 , C07C45/78 , C07C47/22 , C07C51/42 , C07C57/07 , C07C67/48 , C07C69/54 , B01D11/00
CPC分类号： B01D3/32 , B08B9/08 , C07C45/78 , C07C45/82 , C07C51/44 , C07C51/46 , C07C67/54 , Y10T137/5762 , Y10T137/85954 , Y10T137/86187 , C07C47/22 , C07C57/04 , C07C69/54
摘要： The present invention provides a process for recovering liquid chemical products, in which the residual liquid chemical products remaining in respective handling devices in a chemical production facility can be efficiently and safely recovered therefrom without leakage thereof out of the system. In the process for recovering liquid chemical products in a chemical production facility according to the present invention, the chemical products are withdrawn from the handling devices through bottom discharge pipes (14), (15), (16) and (17) thereof, directly collected by the gravity thereof into a common inclined collection pipe (13) located at a position lower than the bottom discharge pipes and connected to the bottom discharge pipes, and then delivered by the gravity thereof through the inclined collection pipe (13) to a recovery tank (1) located at a position lower than the inclined collection pipe and connected to a lower end of the inclined collection pipe.
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38.发明申请Esterfication process for production of fluoroalkyl (meth)acrylate by pervaporation-aided membrane reactor 审中-公开通过全蒸发辅助膜反应器生产（甲基）丙烯酸氟烷基酯的酯化方法公开(公告)号：US20050085661A1
公开(公告)日：2005-04-21
申请号：US10882185
申请日：2004-07-02
申请人： Soo-Bok Lee , Dong-Kwon Kim , In Jun Park , Jeong-Hoon Kim , Kwang-Won Lee , Jong-Wook Ha , Kwang-Han Kim , Sang-Man Ahn , Yong-Taek Lee
发明人： Soo-Bok Lee , Dong-Kwon Kim , In Jun Park , Jeong-Hoon Kim , Kwang-Won Lee , Jong-Wook Ha , Kwang-Han Kim , Sang-Man Ahn , Yong-Taek Lee
CPC分类号： C07C67/08 , Y02P20/582 , C07C69/653
摘要： The present invention relates to a process for preparing fluoroacrylic acid ester using a pervaporation composite membrane, in particular, to a process for preparing fluoroacrylic acid ester performed in such a manner that water and unreacted fluoroalcohol generated in esterification between fluoroalcohol and (meth)acrylic acid in the presence of an acid catalyst are condensed and then passed through a pervaporation membrane to effectively remove water, followed by recycling the unreacted fluoroalcohol removed of water. The present process exhibits much higher conversion rate of fluoroacrylic acid ester, allows the decrease of energy consumption and could be performed in environment-friendly manner.
摘要翻译： 本发明涉及一种使用渗透蒸发复合膜制备氟代丙烯酸酯的方法，特别涉及一种制备氟代丙烯酸酯的方法，该方法是在氟代醇与（甲基）丙烯酸之间的酯化中产生的水和未反应的氟代醇 在酸催化剂存在下冷凝，然后通过渗透蒸发膜以有效除去水，然后再循环除去水的未反应的氟代醇。 本发明的氟代丙烯酸酯的转化率高得多，能够降低能量消耗，可以以环保的方式进行。
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公开(公告)号：US20050059837A1
公开(公告)日：2005-03-17
申请号：US10862500
申请日：2004-06-07
申请人： Cynthia Cooper , Rene Zamarripa
发明人： Cynthia Cooper , Rene Zamarripa
CPC分类号： C07C67/08 , C07C67/54 , Y02P20/582 , C07C69/54
摘要： A continuous process for producing n-butyl acrylate substantially free of acrylic acid and n-butyl acetate and for recovering acrylic acid, n-butyl acrylate, n-butanol and water from an esterification reactor mixture containing acrylic acid, n-butyl acrylate, n-butanol, water, heavy ends, and acid catalyst; wherein two process units are run in parallel, each comprising an esterification reactor and a dehydration distillation column; and wherein a first process unit has a hydrolysis reactor, a cracking reactor and an acrylic acid separation column and a second process unit has a bleed stripper, a recycle tank and a neutralization and acidification system; with interconnections between the two process units that are designed to maximize yield and purity of the products from both units.
摘要翻译： 一种制备基本上不含丙烯酸和乙酸正丁酯的丙烯酸正丁酯的丙烯酸正丁酯和正丁醇和水的连续方法，所述酯化反应器混合物含有丙烯酸，丙烯酸正丁酯，n 丁醇，水，重末端和酸催化剂; 其中两个处理单元并行运行，每个包含酯化反应器和脱水蒸馏塔; 并且其中第一处理单元具有水解反应器，裂解反应器和丙烯酸分离塔，并且第二处理单元具有放气汽提器，再循环罐和中和酸化系统; 两个处理单元之间的互连被设计成使来自两个单元的产品的产量和纯度最大化。
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40.发明授权Processes for the production of high-purity dimethyl 2, 6-naphthalenedicarboxylate and naphthalenedicarboxylic acid 失效制备高纯度2,6-二甲酸二甲酯和萘二甲酸二甲酯的方法
公开(公告)号：US6013831A
公开(公告)日：2000-01-11
申请号：US69815
申请日：1998-04-30
申请人： Hiroshi Machida , Fumiya Zaima , Kengi Nakaya , Kazuo Tanaka
发明人： Hiroshi Machida , Fumiya Zaima , Kengi Nakaya , Kazuo Tanaka
IPC分类号： C07C51/265 , C07C67/08 , C07C67/52 , C07C67/48
CPC分类号： C07C67/08 , C07C51/265 , C07C67/52
摘要： A process for the production of high-purity dimethyl 2,6-naphthalenedicarboxylate, which comprises esterifying 2,6-naphthalenedicarboxylic acid obtained by liquid phase oxidation of 2,6-dialkylnaphthalene with molecular oxygen in the presence of an oxidation catalyst, with methanol and then purifying a crude ester formed by the esterification, the crude ester being purified in the presence of an aromatic hydrocarbon as a solvent, in which impurities contained in a reaction product obtained by the esterification of 2,6-naphthalenedicarboxylic acid prepared by the liquid phase oxidation of 2,6-dialkylnaphthalene are effectively removed with simple procedures, oxidation catalyst metals are recovered, a crystal of naphthalenedicarboxylic acid formed by the oxidation of dialkylnaphthalene and/or its oxide derivative can be easily separated, and the oxidation catalyst to be brought into the step of producing dimethyl naphthalenedicarboxylate is recovered in the process of the production of naphthalenedicarboxylic acid and effectively used in the process of the production of naphthalenedicarboxylic acid.
摘要翻译： 一种制备高纯度2,6-萘二甲酸二甲酯的方法，其包括在氧化催化剂存在下，通过用分子氧将2,6-二烷基萘液相氧化得到的2,6-萘二羧酸与甲醇和 然后纯化通过酯化形成的粗酯，粗酯在作为溶剂的芳族烃存在下纯化，其中通过由液相制备的2,6-萘二甲酸酯化得到的反应产物中所含的杂质 通过简单的方法有效地除去2,6-二烷基萘的氧化，回收氧化催化剂金属，可以容易地分离通过二烷基萘和/或其氧化物衍生物的氧化形成的萘二甲酸的结晶，并将氧化催化剂 在生产n的过程中回收生产二甲基萘二甲酸二甲酯的步骤 邻苯二甲酸二羧酸，有效用于生产萘二羧酸的方法。
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