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公开(公告)号：EP1727610A1
公开(公告)日：2006-12-06
申请号：EP05716152.3
申请日：2005-03-17
摘要： The invention relates to a method for purifying and cooling a dialkyl ester (A) of a gas stream containing aromatic dicarboxylic acids. The invention is characterized in that, in a first stage, the gas stream is treated with an aliphatic dihydroxy compound (B) at a temperature lower than or equal to the melting point of the dialkyl ester (A) and, in at least a second stage, the gas stream is treated with an aliphatic dihydroxy compound (B) above the melting point of the dihydroxy compound (B).
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2.发明公开VERFAHREN ZUR ABTRENNUNG VON AMMONIAK UND WASSER AUS GEMISCHEN, DIE BEI DER HERSTELLUNG VON POLYAMIDEN ENTSTEHEN 审中-公开用于分离氨和水对混合物的，聚酰胺ARISE制造
公开(公告)号：EP1756208A1
公开(公告)日：2007-02-28
申请号：EP05744786.4
申请日：2005-05-31
发明人： ASSMANN, Jens , DEMETER, Jürgen , DEININGER, Jürgen , SÖTJE, Oliver , KORY, Gad , LÖNING, Jan-Martin
CPC分类号： C08G69/04 , B01D3/14 , B01D5/0036 , C01C1/10 , C08G69/16 , C08G69/28 , C08J11/06 , Y02W30/701
摘要： The invention relates to a method for the distillative separation of ammonia and water from mixtures arising during the production of polyamides, said mixture containing a lactam and/or diamines and, optionally, an aminonitrile and/or dinitrile in addition to cyclopentanones as foreign substances. Said method consists of two steps: 1) the mixture is distilled at 11 - 35 bars, resulting in the production of water, ammonia and cyclopentanone as overhead products (K1), and water, lactam and/or diamines and, optionally, aminonitrile and/or dinitrile, as base products (S1), and 2) K1 is distilled at 11 - 35 bars, resulting in the production of ammonia and cyclopentanone as an overhead product, and water as a base product (S2).
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公开(公告)号：EP1615872A1
公开(公告)日：2006-01-18
申请号：EP04726105.2
申请日：2004-04-07
IPC分类号： C07C67/03 , C07C69/52 , C07C67/54 , C08G63/181 , C08G63/183 , C08G63/189 , B01D47/12 , B01D47/14
CPC分类号： C07C67/48 , B01D53/1487 , B01D53/1493 , C07C67/52 , C08G63/181 , C08G63/78 , C07C69/82
摘要： Disclosed is a method for purifying and cooling a dialkyl ester A) of a gas stream containing aromatic dicarboxylic acid. Said method is characterized in that the gas stream is treated with an aliphatic dihydroxy compound B) above the melting point of the dialkyl ester A) in a first stage while the gas stream is treated with an aliphatic dihydroxy compound B) above the melting point of the dihydroxy compound B) in at least one second stage.
摘要翻译： 公开了一种纯化和冷却含有芳族二羧酸的气流的二烷基酯A）的方法。 所述方法的特征在于，在第一阶段中用高于二烷基酯A）熔点的脂族二羟基化合物B）处理气流，同时用脂族二羟基化合物B）处理气体物流B），所述脂族二羟基化合物B） 二羟基化合物B）在至少一个第二阶段中。
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4.发明公开
公开(公告)号：EP1794110A1
公开(公告)日：2007-06-13
申请号：EP05784061.3
申请日：2005-09-22
发明人： TELES, Joaquim Henrique , RÖSSLER, Beatrice , GENGER, Thomas , GLASS, Andreas , BAUMANN, Dieter , LÖNING, Jan-Martin
CPC分类号： B01D53/73 , B01D53/14 , B01D2257/402 , C01B21/22 , C07C45/28 , C07C49/607 , Y02C20/10 , Y02P20/153 , Y02P20/582 , C07C49/395 , C07C49/413
摘要： The invention relates to a method for purifying a gas mixture containing dinitrogen monoxide and to the use of a purified gas mixture of this type as an oxidant for olefins. In an additional embodiment, the invention also relates to a method for producing ketones, said method comprising the oxidation of an olefin with a gas mixture containing dinitrogen monoxide that has been purified according to the invention.
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