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91. 发明公开

EP2533874A1 PROCESSES UTILIZING SWITCH CONDENSERS 审中-公开
标题翻译：用SHIFT电容器过程
公开(公告)号：EP2533874A1
公开(公告)日：2012-12-19
申请号：EP11700383.0
申请日：2011-01-11
申请人： Exxonmobil Chemical Patents Inc. A Corporation Of The State Of Delaware
发明人： DE MUNCK, Nicolaas A. , GROOTENS, George F.H.
IPC分类号： B01D5/00 , C07C51/573 , B01D7/02
CPC分类号： B01D5/0051 , B01D5/00 , B01D7/02
摘要： Processes for controlling the operation of switch condensers are provided.

92. 发明公开

EP2139840A1 VERFAHREN ZUR DESTILLATIVEN GEWINNUNG VON MALEINSÄUREANHYDRID 审中-公开
标题翻译：程序用于获得蒸馏顺酐
公开(公告)号：EP2139840A1
公开(公告)日：2010-01-06
申请号：EP08718043.6
申请日：2008-03-19
申请人： BASF SE
发明人： WINDECKER, Gunther , KAIBEL, Gerd , STEINIGER, Michael , BUNTROCK, Thilo , WEIGUNY, Jens , VANDEN HAUTTE, Dany , LURQUIN, Thierry
IPC分类号： C07C51/573 , C07C57/145 , B01D3/14
CPC分类号： B01D3/14 , B01D3/141 , C07C51/573 , C07C57/145
摘要： The invention relates to a method for the recovery of maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent. The solution is obtained by the gas phase oxidation of a hydrocarbon and by at least the partial absorption of the oxidation products in the absorbent.For the method, i) the solution is introduced laterally into an inlet column with a reinforcing part above the inlet site and an output part below the inlet site; ii) an upper combining column communicating with the upper end of the reinforcing part and a lower combining column communicating with the lower end of the output part are provided; iii) a take-off column, communicating with the upper combining column and the lower combining column, is provided; iv) maleic anhydride is drawn off as a side take-off from the take-off column, and compounds, boiling lower than maleic anhydride, are taken off at the head of the upper combining column, and the higher boiling absorbent is taken off in the sump of the lower combining column. The maleic anhydride, obtained as a side take-off, has a low acrylic acid and acetic acid content.

93. 发明授权

EP0665210B2 PROCESS FOR PRODUCING ACETIC ANHYDRIDE ALONE OR BOTH OF ACETIC ANHYDRIDE AND ACETIC ACID 失效
标题翻译：用于生产乙酸酐或乙酸酐和乙酸的混合物
公开(公告)号：EP0665210B2
公开(公告)日：2005-11-23
申请号：EP94922379.6
申请日：1994-08-16
申请人： DAICEL CHEMICAL INDUSTRIES, LTD.
发明人： MORIMOTO, Yoshiaki , TANIGAWA, Hiroto , AKITA, Kazuyuki
IPC分类号： C07C53/08 , C07C53/12 , C07C51/12 , C07C51/44 , B01J31/16 , C07C51/56 , C07C51/573
CPC分类号： C07C51/56 , C07C51/12 , C07C51/44 , C07C51/573 , C07C53/08 , C07C53/12
摘要： A process for producing acetic anhydride alone or both of acetic anhydride and acetic acid by the reaction of methyl acetate and/or dimethyl ether and, as optional component(s), water and/or methanol with carbon monoxide alone or both of carbon monoxide and hydrogen in the presence of a rhodium compound and methyl iodide as the principal catalysts, wherein trace impurities causative of tar generation is removed by separating the same through distillation in the evaporator and/or in the subsequent refining step, thus reducing the generation of the tar which otherwise turns into a contaminant.

94. 发明授权

EP1204628B1 VERFAHREN ZUR HERSTELLUNG VON SPEZIFIKATIONSGERECHTEM PHTHALSÄUREANHYDRID 有权
标题翻译：用于生产规范苯酐
公开(公告)号：EP1204628B1
公开(公告)日：2005-08-17
申请号：EP00958412.9
申请日：2000-08-10
申请人： BASF AKTIENGESELLSCHAFT
发明人： PESCHEL, Werner , BESSLING, Bernd , REUTER, Peter , LORZ, Peter, Michael , ULRICH, Bernhard , KNAB, Jean, Werner , KUMMER, Matthias , RÜHL, Thomas
IPC分类号： C07C51/573 , C07C63/16 , B01D3/14
CPC分类号： C07D307/89
摘要： The invention relates to a method for producing phthalic anhydride according to specifications by the distillative purification of crude phthalic anhydride. According to said method, crude phthalic anhydride is fed to a distillation column which is operated at a reduced pressure, then the low-boiling constituents at the head or in the vicinity of the head of the distillation column are removed and the phthalic anhydride which conforms to specifications is recovered from the column through a lateral vent.

95. 发明授权

EP1208074B1 PROCESS FOR THE PRODUCTION OF FLUOROCARBOXYLIC ACID ANHYDRIDES 有权
标题翻译：用于生产FLUORCARBONSÄUREANYHYDRIDEN
公开(公告)号：EP1208074B1
公开(公告)日：2004-07-21
申请号：EP00954037.8
申请日：2000-08-14
申请人： EASTMAN CHEMICAL COMPANY
发明人： LIN, Robert, c/o Eastman Chemical Company , HEMBRE, Robert, Thomas , HOLCOMBE, Edwin, Franklin, III , SHELTON, Mark, Robert
IPC分类号： C07C51/56 , C07C51/567 , C07C51/573 , C07C53/18 , C07C53/21
CPC分类号： C07C51/567 , C07C51/56 , C07C51/573 , Y02P20/127 , C07C53/18
摘要： Disclosed is process for the production of symmetrical fluoro-substituted anhydrides from mixed or unsymmetrical anhydrides, i.e., wherein the two carboxylic acid acyl groups of the anhydrides are different, by subjecting an unsymmetrical anhydrides to reactive distillation to produce a lower boiling product comprising a symmetrical fluorocarboxylic acid anhydride and a higher boiling product comprising a second symmetrical anhydride. The process is particularly useful for the coproduction of trifluoroacetic anhydride (TFAA) and acetic anhydride (Ac2O) from ketene and trifluoroacetic acid wherein ketene and trifluoroacetic acid (TFA) are reacted to produce a mixed anhydride, acetyl trifluoroacetate (Ac-TFA), which then is subjected to reactive distillation to produce a vapor product comprising TFAA and a liquid product comprising Ac2O.

96. 发明公开

EP1375468A3 Method for removing impurities from oxidation products 审中-公开
标题翻译：一种从氧化产物中除去杂质的过程
公开(公告)号：EP1375468A3
公开(公告)日：2004-03-10
申请号：EP03253827.4
申请日：2003-06-18
申请人： GENERAL ELECTRIC COMPANY
发明人： Colborn, Robert Edgar , Khouri, Farid Fouad
IPC分类号： C07C51/48 , C07C51/573 , C07C63/68 , C07C63/72 , C07C63/16
CPC分类号： C07C51/48 , C07C51/573 , C07C63/16 , C07C63/72 , C07C63/68
摘要： Disclosed is a method for removing impurities from products derived from oxidation of an ortho-dialkylaromatic compound which comprises at least one step selected from the group consisting of extraction of an aqueous solution comprising aromatic dicarboxylic acid product with an organic solvent and extraction of an organic solution comprising aromatic anhydride product with an aqueous bicarbonate solution for a time period insufficient to allow hydrolysis of anhydride to acid.

97. 发明公开

EP1394143A1 Process for the production of fluorocarboxylic acid anhydrides 审中-公开
标题翻译：用于生产氟代羧酸酐的方法
公开(公告)号：EP1394143A1
公开(公告)日：2004-03-03
申请号：EP03026077.2
申请日：2000-08-14
申请人： Eastman Chemical Company
发明人： Lin, Robert , Hembre, Robert Thomas , Holcombe, Edwin Franklin , Shelton, Mark Robert
IPC分类号： C07C51/56 , C07C51/573 , C07C53/18 , C07C53/21
CPC分类号： C07C51/567 , C07C51/56 , C07C51/573 , Y02P20/127 , C07C53/18
摘要： The present invention relates to a process for the coproduction of trifluoroacetic anhydride (TFAA) and a carboxylic anhydride having the formula [R-C(O)] 2 O which comprises the steps of: (1) preparing a mixed anhydride having the formula R-C(O)-O-C(O)-CF 3 in a reaction vessel; (2) removing the mixed anhydride from the reaction vessel and introducing it into the mid-section of a reactive distillation column wherein the mixed anhydride disproportionates to form TFAA and [R-C(O)] 2 O; (3) removing a lower boiling product comprising TFAA from the upper section of the reactive distillation column; and (4) removing a higher boiling product comprising [R-C(O)] 2 O from the lower section of the reactive distillation column; wherein R is an alkyl, alkenyl, cycloalkyl or aryl group containing up to 6 carbon atoms.
摘要翻译：本发明涉及三氟乙酸酐（TFAA）和具有式[RC（O）] 2 O的羧酸酐的共产生的方法，该方法包括以下步骤：（1）制备式RC（O） -OC（O）-CF 3在反应容器中; （2）从反应容器中取出混合酸酐并将其引入反应蒸馏塔的中间部分，其中混合酸酐歧化形成TFAA和[R-C（O）] 2 O; （3）从反应性蒸馏塔的上部分移除包含TFAA的较低沸点产物; 和（4）从反应蒸馏塔的下部除去包含[R-C（O）] 2 O的较高沸点产物; 其中R是含有至多6个碳原子的烷基，烯基，环烷基或芳基。

98. 发明公开

EP1362841A1 Process to isolate dianhydrides 审中-公开
标题翻译： Verfahren zur Isolierung von Dianhydriden
公开(公告)号：EP1362841A1
公开(公告)日：2003-11-19
申请号：EP03252946.3
申请日：2003-05-12
申请人： GENERAL ELECTRIC COMPANY
发明人： Guggenheim, Thomas Link , Mongilio, David Anthony
IPC分类号： C07C51/573
CPC分类号： C07C51/573 , Y10S159/901 , C07C65/24
摘要： A process to isolate dianhydride from an exchange reaction comprises extracting a bisimide/anhydride exchange reaction aqueous phase with an organic solution comprising an exchange catalyst at a first temperature and pressure to form an extracted aqueous phase comprising water, exchange catalyst and a dianhydride precursor; removing water from the extracted aqueous phase at a second temperature and pressure to form a molten phase, wherein the second pressure is less than the first pressure; removing water and exchange catalyst from the molten phase at a third temperature and pressure to form an isolation mixture; and converting the dianhydride precursor in the isolation mixture to dianhydride at a fourth temperature and pressure, wherein the fourth temperature is greater than the second and third temperatures and the fourth pressure is less than the second and third pressures.
摘要翻译：从交换反应中分离二酐的方法包括在第一温度和压力下用包含交换催化剂的有机溶液萃取双酰亚胺/酸酐交换反应水相以形成包含水，交换催化剂和二酐前体的萃取水相; 在第二温度和压力下从提取的水相中除去水以形成熔融相，其中第二压力小于第一压力; 在第三温度和压力下除去水并从熔融相中交换催化剂以形成分离混合物; 以及在第四温度和压力下将分离混合物中的二酐前体转化为二酐，其中第四温度大于第二和第三温度，第四压力小于第二和第三压力。

99. 发明授权

EP1233012B1 Verfahren zur herstellung von spezifikationsgerechtem phthalsäureanhydrid 有权
标题翻译：一种用于制备的规格的邻苯二甲酸酐的过程
公开(公告)号：EP1233012B1
公开(公告)日：2003-05-21
申请号：EP01103224.0
申请日：2001-02-12
申请人： BASF AKTIENGESELLSCHAFT
发明人： Disteldorf, Walter Dr , Peters, Jarren Dr , Morsbach, Bernd , Kummer, Matthias Dr , Rühl, Thomas. Dr
IPC分类号： C07C51/573 , C07C63/16 , B01D3/14
CPC分类号： B01D3/14 , C07C51/573 , C07C63/16

100. 发明公开

EP1056708A1 VERFAHREN ZUR ABTRENNUNG VON MALEINSÄUREANHYDRID AUS MALEINSÄUREANHYDRIDHALTIGEN GEMISCHEN DURCH STRIPPUNG 有权
标题翻译：方法用于分离马来酸酐，包括马来酸酐通过汽提MIXTURES
公开(公告)号：EP1056708A1
公开(公告)日：2000-12-06
申请号：EP99907539.3
申请日：1999-02-11
申请人： BASF AKTIENGESELLSCHAFT
发明人： PINKOS, Rolf , RAHN, Ralf-Thomas
IPC分类号： C07C51/573 , C07C67/08 , C07C57/145 , C07C69/60 , C07C29/17 , C07D307/08 , C07D307/33 , C07C31/20
CPC分类号： C07C51/573 , C07C29/149 , C07C67/08 , C07C31/207 , C07C57/145 , C07C69/80
摘要： The invention relates to a method for separating maleic anhydride from the maleic anhydride-containing reactor waste gases resulting from maleic anhydride production by hydrocarbon oxidation. According to said method the gas stream is placed into contact with a high-boiling inert absorption agent for maleic anhydride and maleic anhydride is separated from the resulting liquid absorbate phase by steam stripping. An alcohol is used as desorption agent and maleic anhydride at least partly reacts with the alcohol to yield an ester.

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