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1. 发明申请

US20060197240A1 COLLECTING TRAY WITH LOW HEAT TRANSFER COEFFICIENT FOR A RECTIFICATION COLUMN 审中-公开
标题翻译：收集具有低热传递系数的托盘用于修复柱
公开(公告)号：US20060197240A1
公开(公告)日：2006-09-07
申请号：US11276174
申请日：2006-02-16
申请人： Armin DIEFENBACHER , Klaus MUELLER-ENGEL , Ulrich HAMMON
发明人： Armin DIEFENBACHER , Klaus MUELLER-ENGEL , Ulrich HAMMON
IPC分类号： B01F3/04
CPC分类号： B01D3/18
摘要： A chimney tray for a column for the thermal treatment of a liquid, comprising an upper tray and a lower tray which are spaced apart from one another, arranged substantially horizontally in the column, comprising chimneys, and also comprising drawing of the liquid via a drainage spout arranged at the edge of the chimney tray, wherein the upper tray and the lower tray have a minimum separation from one another of from 10 to 500 mm and, between the upper tray and the lower tray, a gas having a thermal conductivity of less than 0.5 watt/m/K has been incorporated.
摘要翻译：一种用于热处理液体的柱的烟囱式托盘，包括彼此间隔开的上部托盘和下部托盘，其基本上水平地布置在塔中，包括烟囱，并且还包括经由排水器抽出液体喷嘴布置在烟囱式托盘的边缘处，其中上托盘和下托盘具有彼此之间的最小间隔为10至500mm，并且在上托盘和下托盘之间具有导热性较小的气体已经并入了0.5瓦/米2 / K。

2. 发明申请

US20080183014A1 PROCESS FOR PREPARING ACRYLIC ACID 有权
标题翻译：制备丙烯酸的方法
公开(公告)号：US20080183014A1
公开(公告)日：2008-07-31
申请号：US12020264
申请日：2008-01-25
申请人： Armin DIEFENBACHER , Ulrich Hammon , Volker Schliephake , Georg Sieder
发明人： Armin DIEFENBACHER , Ulrich Hammon , Volker Schliephake , Georg Sieder
IPC分类号： C07C51/487
CPC分类号： C07C51/44 , C07C51/48 , C07C57/04
摘要： A process for preparing acrylic acid, in which an acrylic acid-comprising product gas mixture obtained by catalytic gas phase partial oxidation of a C3 precursor of acrylic acid is fractionally condensed in a condensation column provided with internals ascending into itself with side draw removal of crude acrylic acid and with liquid phase draw removal of acrylic acid-comprising acid water, and acrylic acid present in acid water is taken up into an extractant and then removed from the extractant and recycled into the condensation column, or taken up in aqueous metal hydroxide, or sent to further purification of the crude acrylic acid.
摘要翻译：制备丙烯酸的方法，其中通过丙烯酸C 3/3前体的催化气相部分氧化获得的含丙烯酸的产物气体混合物在具有内部升降的冷凝塔中分级冷凝用丙烯酸粗抽出去除丙烯酸的酸性水，并将存在于酸性水中的丙烯酸吸收到萃取剂中，然后从萃取剂中除去并再循环到冷凝塔中，或吸收在金属氢氧化物水溶液中，或者进一步纯化粗丙烯酸。

3. 发明申请

US20060205972A1 PROCESS FOR PREPARING ALKYL ESTERS OF (METH)ACRYLIC ACID 审中-公开
标题翻译：（甲基）丙烯酸的烷基酯的制备方法
公开(公告)号：US20060205972A1
公开(公告)日：2006-09-14
申请号：US11276601
申请日：2006-03-07
申请人： Anthony CLYMO , Armin DIEFENBACHER , Thorsten FRIESE , Hans MARTAN
发明人： Anthony CLYMO , Armin DIEFENBACHER , Thorsten FRIESE , Hans MARTAN
IPC分类号： C07C69/52
CPC分类号： C07C67/08 , C07C67/54 , C07C69/54
摘要： A process is described for continuously preparing alkyl esters of (meth)acrylic acid by reacting (meth)acrylic acid and alkanols having from 1 to 5 carbon atoms in homogeneous, liquid, solvent-free phase at elevated temperature and in the presence of an acidic esterification catalyst, in which the (meth)acrylic acid, the alkanol and the acidic esterification catalyst are fed to a reaction zone (5, 6), the water formed during a residence time is removed rectificatively as a constituent of an alkanol-comprising mixture in a rectification unit III attached to the reaction zone (5, 6), the distillate obtained here is separated into an alkanol-comprising organic phase and a water-comprising aqueous phase, the organic phase is recycled into the rectification unit III and the aqueous phase is discharged, and a reaction mixture (21) is discharged from the reaction zone (5, 6), which comprises feeding the reaction mixture (21) discharged from the reaction zone (5, 6) to a catalyst removal unit V and separating it in the catalyst removal unit V into a top stream (56) comprising the alkyl ester of (meth)acrylic acid and depleted in acidic esterification catalyst, and a bottom stream (54) comprising the predominant portion of the acidic esterification catalyst and depleted in water, and introducing the top stream (56) comprising the alkyl ester of (meth)acrylic acid into a rectification unit I and, with addition of water, separating it into a top stream (23) comprising the alkyl ester of (meth)acrylic acid, and a bottom stream (52).
摘要翻译：描述了一种通过使（甲基）丙烯酸和具有1至5个碳原子的链烷醇在均相，液体，无溶剂相中在升高的温度和酸性存在下连续制备（甲基）丙烯酸的烷基酯的方法其中将（甲基）丙烯酸，链烷醇和酸性酯化催化剂加入到反应区（5,6）中，在停留时间内形成的水作为含链烷醇的混合物的组分被精馏除去在连接到反应区（5,6）的精馏单元III中，将此处获得的馏出物分离成含链烷醇的有机相和含水的水相，将有机相再循环到精馏单元III中，将反应混合物（21）从反应区（5,6）排出，其中包括将从反应区（5,6）排出的反应混合物（21）进料到催化剂r 表示单元V并将其在催化剂去除单元V中分离成包含（甲基）丙烯酸的烷基酯和贫化的酸性酯化催化剂的顶部流（56），以及包含主要部分酸性的底部流（54）酯化催化剂和耗尽水，并将包含（甲基）丙烯酸的烷基酯的顶部流（56）引入精馏单元I中，并加入水将其分离成包含烷基酯的顶部流（23）的（甲基）丙烯酸和底部流（52）。

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