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1. 发明申请

US20090068440A1 PRODUCTION OF ACROLEIN, ACRYLIC ACID AND WATER-ABSORBENT POLYMER STRUCTURES MADE FROM GLYCERINE 审中-公开
标题翻译：丙二醇，丙烯酸和水分吸收聚合物结构的制备
公开(公告)号：US20090068440A1
公开(公告)日：2009-03-12
申请号：US11917850
申请日：2005-06-16
申请人： Gunther Bub , Jurgen Mosler , Andreas Sabbagh , Franz-Felix Kuppinger , Guido Stochniol , Jorg Sauer , Jorg Leistner , Gunter Latoschinski , Thorsten Schwatzke
发明人： Gunther Bub , Jurgen Mosler , Andreas Sabbagh , Franz-Felix Kuppinger , Guido Stochniol , Jorg Sauer , Jorg Leistner , Gunter Latoschinski , Thorsten Schwatzke
IPC分类号： B32B5/16 , C07C47/02 , C07C51/235 , B01J19/24 , C08F20/06 , B32B27/30
CPC分类号： C07C45/52 , C07C51/252 , Y10T428/254 , Y10T428/31855 , C07C47/22 , C07C57/04
摘要： The present invention relates to a process for the production of acrolein, comprising the following steps: (a) bringing into contact of an aqueous glycerine phase in an acrolein reaction area to obtain an aqueous acrolein reaction phase; (b) depleting the acrolein from the acrolein reaction phase to obtain an acrolein phase and a depleted acrolein reaction phase; (c) conducting back at least a part of the depleted acrolein reaction phase into the acrolein reaction area. The invention further relates to a process for production of acrylic acid as well as of water-absorbing polymer structures, composites, in particular hygiene articles, comprising these water-absorbing polymer structures, a process for production of the composites and further chemical products based on the acrylic acid obtained by the inventive process and also the use of this acrylic acid in chemical products.
摘要翻译：本发明涉及一种制备丙烯醛的方法，包括以下步骤：（a）使丙烯醛反应区域中的甘油相与丙烯醛水溶液反应相接触; （b）从丙烯醛反应相中消耗丙烯醛，得到丙烯醛相和耗尽的丙烯醛反应相; （c）将至少一部分耗尽的丙烯醛反应相导入丙烯醛反应区。本发明还涉及一种生产丙烯酸以及吸水聚合物结构，复合材料，特别是卫生制品的方法，包括这些吸水聚合物结构，复合材料的生产方法和基于通过本发明方法获得的丙烯酸以及该丙烯酸在化学产品中的用途。

2. 发明申请

US20080119669A1 Process for the Recovery of Organic Compounds from Mixtures Containing (Meth)Acrylic Acid by Extraction with a Protic Solvent 审中-公开
标题翻译：通过用溶剂溶剂提取含有（甲基）丙烯酸的混合物来回收有机化合物的方法
公开(公告)号：US20080119669A1
公开(公告)日：2008-05-22
申请号：US11815633
申请日：2006-02-07
申请人： Torsten Balduf , Andreas Sabbagh , Thomas Nehrkorn , Manfred Lucas
发明人： Torsten Balduf , Andreas Sabbagh , Thomas Nehrkorn , Manfred Lucas
IPC分类号： C07C51/42 , B01J8/00
CPC分类号： C07C51/487 , B01D11/0488 , C07C51/44 , C07C51/48 , C07C51/50 , C07C57/04
摘要： The invention relates the preparation of (meth)acrylic acid comprising the steps: i) bringing a composition Z1 comprising (meth)acrylic acid and aldehydes into contact with an aldehyde-trapping agent to give a composition Z2 comprising (meth)acrylic acid, the high-boiling reaction product of the aldehyde, and the aldehyde-trapping agent, and unreacted aldehyde-trapping agent; ii) separating off (meth)acrylic acid from the composition Z2 by means of distillation, whereby a composition Z3 comprising the high-boiling reaction product from the reaction between the aldehyde and the aldehyde-trapping agent and unreacted aldehyde-trapping agent is being obtained as the bottom product; iii) extracting the unreacted aldehyde-trapping agent from the composition Z3 by water, a first, aqueous phase P1 and a second, organic phase P2 being obtained; iv) separating off of the first, aqueous phase P1 from the second, organic phase P2.
摘要翻译：本发明涉及（甲基）丙烯酸的制备，其包括以下步骤：i）使包含（甲基）丙烯酸和醛的组合物Z 1与醛捕获剂接触，得到组合物Z 包含（甲基）丙烯酸，醛的高沸点反应产物和醛捕获剂和未反应的醛捕获剂; ii）通过蒸馏从组合物Z 2中分离出（甲基）丙烯酸，由此组合物Z 3包含来自反应的高沸点反应产物醛和醛捕获剂和未反应的醛捕获剂作为底部产物获得; iii）由组合物Z 3从水中提取未反应的醛捕获剂，第一水相P 1和第二有机相P 2， / SUB> iv）从第二有机相P 2分离第一水相P 1 H 2。

3. 发明授权

US08841481B2 Use of foam bodies in oxidation reactors for preparing unsaturated aldehydes or carboxylic acids 有权
标题翻译：在氧化反应器中使用泡沫体制备不饱和醛或羧酸
公开(公告)号：US08841481B2
公开(公告)日：2014-09-23
申请号：US13060599
申请日：2009-07-29
申请人： Horst-Werner Zanthoff , Nicole Brausch , Franz-Felix Kuppinger , Jorg Sauer , Andreas Sabbagh , Dennis Fruhling , Markus Weber , Oliver Becker
发明人： Horst-Werner Zanthoff , Nicole Brausch , Franz-Felix Kuppinger , Jorg Sauer , Andreas Sabbagh , Dennis Fruhling , Markus Weber , Oliver Becker
IPC分类号： C07C45/35 , C07C57/04 , B01J37/02 , C07C5/333 , C07C51/25 , B01J23/00 , B01J19/24 , B01J35/04 , B01J8/06 , B01J23/888
CPC分类号： B01J8/067 , B01J19/249 , B01J23/002 , B01J23/8885 , B01J35/04 , B01J37/0219 , B01J37/0225 , B01J2208/00221 , B01J2208/025 , B01J2219/00006 , B01J2219/0004 , B01J2219/2453 , B01J2219/2479 , B01J2219/2481 , B01J2523/00 , C07C5/333 , C07C45/35 , C07C51/252 , Y02P20/52 , C07C11/06 , C07C47/22 , C07C57/04 , B01J2523/17 , B01J2523/55 , B01J2523/68 , B01J2523/69
摘要： The present invention relates to a process for preparing unsaturated aldehydes or unsaturated carboxylic acids by heterogeneous catalytic gas phase oxidation of unsaturated or saturated hydrocarbons, comprising the process steps of: i) providing a gas mixture comprising a saturated hydrocarbon and catalytically dehydrogenating the saturated hydrocarbon in the gas phase to obtain a gas mixture comprising an unsaturated hydrocarbon in a dehydrogenation reactor having a dehydrogenation catalyst material; or ii) providing a gas mixture comprising oxygen and an unsaturated hydrocarbon; iii) catalytically oxidizing the unsaturated hydrocarbon obtained in process step i) or provided in process step ii) in the gas phase to obtain a gas mixture comprising an unsaturated aldehyde in a first oxidation reactor having a first oxidation catalyst material; wherein at least one of the reactors selected from the dehydrogenation reactor, the first oxidation reactor and the second oxidation reactor comprises at least one foam body.
摘要翻译：本发明涉及通过不饱和烃或饱和烃的非均相催化气相氧化制备不饱和醛或不饱和羧酸的方法，包括以下工艺步骤：i）提供包含饱和烃的气体混合物并将饱和烃催化脱氢在具有脱氢催化剂材料的脱氢反应器中获得包含不饱和烃的气体混合物; 或ii）提供包含氧和不饱和烃的气体混合物; iii）在工艺步骤i）中获得或在工艺步骤ii）中提供的不饱和烃催化氧化以在具有第一氧化催化剂材料的第一氧化反应器中获得包含不饱和醛的气体混合物; 其中选自脱氢反应器，第一氧化反应器和第二氧化反应器的反应器中的至少一个包括至少一个泡沫体。

4. 发明授权

US08293941B2 Superabsorbent polymers and methods of making the same 有权
标题翻译：超吸收性聚合物及其制造方法
公开(公告)号：US08293941B2
公开(公告)日：2012-10-23
申请号：US13474981
申请日：2012-05-18
申请人： Franz-Felix Kuppinger , Axel Hengstermann , Guido Stochniol , Günther Bub , Jürgen Mosler , Andreas Sabbagh
发明人： Franz-Felix Kuppinger , Axel Hengstermann , Guido Stochniol , Günther Bub , Jürgen Mosler , Andreas Sabbagh
IPC分类号： C07C51/42
CPC分类号： C08F120/06 , C07C51/377 , C07C51/43 , Y02P20/127 , C07C57/04
摘要： In one aspect, a process for the preparation of a superabsorbent polymer is described herein. In some embodiments, the process comprises (I) preparing acrylic acid, wherein the process comprises (a1) provision of a fluid F1 having a composition comprising from about 5 to about 20 wt. % of hydroxypropionic acid, salts thereof, or mixtures thereof; from about 0.1 to about 5 wt. % of inorganic salts; from about 0.1 to about 30 wt. % of organic compounds which differ from hydroxypropionic acid; from 0 to about 50 wt. % of solids; and from about 20 to about 90 wt. % of water; (a2) dehydration of said hydroxypropionic acid to give a fluid F2 containing acrylic acid; and (a3) purification of said fluid F2 to give a purified acrylic acid phase comprising acrylic acid having a purity of at least 70 wt. %; and (II) polymerizing the acrylic acid of (I) to form a superabsorbent polymer.
摘要翻译：一方面，本文描述了制备超吸收性聚合物的方法。在一些实施方案中，该方法包括（I）制备丙烯酸，其中该方法包括（a1）提供具有包含约5至约20wt。％的羟基丙酸，其盐或其混合物; 约0.1至约5wt。％的无机盐; 约0.1至约30wt。％羟基丙酸不同的有机化合物的％; 0至约50wt。％的固体; 和约20至约90wt。％的水; （a2）所述羟基丙酸的脱水，得到含有丙烯酸的流体F2; 和（a3）纯化所述流体F2以得到包含纯度至少为70重量％的丙烯酸的纯化丙烯酸相。％; 和（II）使（I）的丙烯酸聚合以形成超吸收性聚合物。

5. 发明授权

US08258249B2 Water-absorbing polymer structures based on renewable raw materials and process for their production by dehydration 有权
标题翻译：基于可再生原料的吸水聚合物结构及其脱水生产工艺
公开(公告)号：US08258249B2
公开(公告)日：2012-09-04
申请号：US13029208
申请日：2011-02-17
申请人： Günther Bub , Jürgen Mosler , Franz-Felix Kuppinger , Andreas Sabbagh , Guido Stochniol , Jörg Sauer , Markus Winterberg , Udo Knippenberg , Günter Latoschinski , Franck Furno , Thorsten Schwärtzke , Jörg Leistner
发明人： Günther Bub , Jürgen Mosler , Franz-Felix Kuppinger , Andreas Sabbagh , Guido Stochniol , Jörg Sauer , Markus Winterberg , Udo Knippenberg , Günter Latoschinski , Franck Furno , Thorsten Schwärtzke , Jörg Leistner
IPC分类号： C08F220/06 , C08L33/02
CPC分类号： B01J19/2415 , B01J8/025 , B01J8/22 , B01J10/002 , B01J19/006 , B01J19/32 , B01J2208/00176 , B01J2208/0053 , B01J2219/0004 , B01J2219/00081 , B01J2219/00094 , B01J2219/00159 , B01J2219/00768 , B01J2219/185 , B01J2219/1943 , B01J2219/32279 , B01J2219/32286 , C07C45/52 , C07C51/252 , C08F2/00 , C08F2/20 , C08F220/06 , C07C47/22 , C07C57/04
摘要： The present invention relates to superabsorbent polymer comprising acrylic acid made by the process comprising the steps of heating an aqueous glycerine solution to form glycerine; transporting the glycerine to the dehydration reactor; dehydrating the glycerine to an acrolein-comprising dehydration product; gas phase oxidating of the acrolein-comprising dehydration product to obtain an acrylic acid-comprising monomer gas; bringing into contact of the monomer gas with a quench agent to obtain an acrylic acid-comprising quench phase; working-up the quench phase to obtain an acrylic acid-comprising monomer phase; and polymerizing the acrylic acid-comprising monomer phase; wherein a plurality of gas bubbles is generated and wherein the dehydration occurs at least partially in the liquid phase. The superabsorbent polymer has certain properties for biodegradability and sustainability. Further, at least about 25% of the acrylic acid is based on glycerine. The superabsorbent polymer has a sustainability factor of at least about 80%.
摘要翻译：本发明涉及包含丙烯酸的超吸收性聚合物，该方法包括以下步骤：加热甘油水溶液以形成甘油; 将甘油输送到脱水反应器; 将甘油脱水至含丙烯醛的脱水产物; 气相氧化含丙烯醛的脱水产物，得到含丙烯酸的单体气体; 使单体气体与骤冷剂接触以获得含丙烯酸的淬火相; 加工淬火阶段以获得含丙烯酸的单体相; 并使含有丙烯酸的单体相聚合; 其中产生多个气泡，并且其中脱水至少部分地在液相中发生。超吸收性聚合物具有一定的生物降解性和可持续性。此外，至少约25％的丙烯酸是基于甘油。超吸收性聚合物具有至少约80％的可持续性因子。

6. 发明授权

US08178717B2 Process for production of (meth)acrylic acid with high boiling fraction work-up by means of crystallization 有权
$Process for production of (meth)acrylic acid with high boiling fraction work-up by means of crystallization$
标题翻译：通过结晶生产高沸点后处理的（甲基）丙烯酸的方法
公开(公告)号：US08178717B2
公开(公告)日：2012-05-15
申请号：US12063949
申请日：2006-08-11
申请人： Torsten Balduf , Günther Bub , Jürgen Mosler , Andreas Sabbagh , Jürgen Kohn , Arndt Selbach
发明人： Torsten Balduf , Günther Bub , Jürgen Mosler , Andreas Sabbagh , Jürgen Kohn , Arndt Selbach
IPC分类号： C07C27/00 , C07C51/42
CPC分类号： C08J3/00 , C07C51/43 , C07C57/04
摘要： A process for production of (meth)acrylic acid is disclosed. The process includes synthesizing and distillatively working-up a crude (meth)acrylic acid phase to obtain a (meth)acrylic acid phase and a dimer phase including (meth)acrylic acid dimers and/or (meth)acrylic acid oligomers. At least a part of the (meth)acrylic acid dimers and/or of the (meth)acrylic acid oligomers from the dimer phase is split to obtain a (meth)acrylic acid including a low-boiling phase and a high-boiling phase including less (meth)acrylic acid than the low-boiling phase. At least a part of the (meth)acrylic acid from the low-boiling phase is separated by forming of one or more crystals to obtain a pure (meth)acrylic acid and a residue. Also disclosed is a device for production of (meth)acrylic acid, a process for production of a polymer as well as chemical products based on or including (meth)acrylic acid or a polymer as well as the use of (meth)acrylic acid or polymers in chemical products.
摘要翻译：公开了（甲基）丙烯酸的生产方法。该方法包括合成和蒸馏处理粗（甲基）丙烯酸相以获得（甲基）丙烯酸相和包含（甲基）丙烯酸二聚体和/或（甲基）丙烯酸低聚物的二聚体相。（甲基）丙烯酸二聚体和/或来自二聚体相的（甲基）丙烯酸低聚物的至少一部分被分裂，得到包含低沸点相和高沸点相的（甲基）丙烯酸，包括（甲基）丙烯酸低于低沸点相。通过形成一种或多种晶体将至少一部分来自低沸点相的（甲基）丙烯酸分离，得到纯的（甲基）丙烯酸和残余物。还公开了用于生产（甲基）丙烯酸的装置，聚合物的制造方法以及基于（或）（甲基）丙烯酸或聚合物的化学产品，以及使用（甲基）丙烯酸或化学产品中的聚合物。

7. 发明申请

US20110105791A1 PROCESS FOR PREPARING ACRYLIC ACID PURIFIED BY CRYSTALLIZATION FROM HYDROXYPROPIONIC ACID AND APPARATUS THEREFORE 有权
标题翻译：制备丙烯酸的方法，由丙烯酸和水解产物结晶制备丙烯酸
公开(公告)号：US20110105791A1
公开(公告)日：2011-05-05
申请号：US12438295
申请日：2007-08-22
申请人： Franz-Felix Kuppinger , Axel Hengstermann , Guido Stochniol , Günther Bub , Jürgen Mosler , Andreas Sabbagh
发明人： Franz-Felix Kuppinger , Axel Hengstermann , Guido Stochniol , Günther Bub , Jürgen Mosler , Andreas Sabbagh
IPC分类号： C07C51/43 , B01J19/00
CPC分类号： C08F120/06 , C07C51/377 , C07C51/43 , Y02P20/127 , C07C57/04
摘要： The invention relates to a process for the preparation of acrylic acid and a process for the preparation of polyacrylic acid comprising the process steps: (a1) preparation of 3-hydroxypropionic acid from a biological material to give a fluid, in particular aqueous, phase containing 3-hydroxypropionic acid; (a2) dehydration of the 3-hydroxypropionic acid to give a fluid, in particular aqueous, solution containing acrylic acid; (a3) purification of the solution containing acrylic acid by a suspension crystallization or a layer crystallization to give a purified phase; and corresponding devices for carrying out these processes, and acrylic acid and polyacrylates. The invention is distinguished in that acrylic acid and polyacrylates can thereby be prepared efficiently, inexpensively, and sustainably with simple means and with a high purity on the basis of regenerable raw materials.
摘要翻译：本发明涉及一种制备丙烯酸的方法和一种制备聚丙烯酸的方法，包括以下步骤：（a1）从生物材料制备3-羟基丙酸，得到流体，特别是含水相，含有 3-羟基丙酸; （a2）将3-羟基丙酸脱水得到流体，特别是含丙烯酸的水溶液; （a3）通过悬浮结晶或层结晶纯化含丙烯酸的溶液，得到纯化相; 和用于进行这些工艺的相应装置，以及丙烯酸和聚丙烯酸酯。本发明的区别在于，丙烯酸和聚丙烯酸酯由此可以以可再生的原料为基础，以简单的手段和高纯度有效，廉价和可持续地制备。

8. 发明授权

US08198481B2 Process for preparing acrylic acid purified by crystallization from hydroxypropionic acid and apparatus therefore 有权
标题翻译：因此通过从羟基丙酸结晶纯化丙烯酸的方法和装置
公开(公告)号：US08198481B2
公开(公告)日：2012-06-12
申请号：US12438295
申请日：2007-08-22
申请人： Franz-Felix Kuppinger , Axel Hengstermann , Guido Stochniol , Günther Bub , Jürgen Mosler , Andreas Sabbagh
发明人： Franz-Felix Kuppinger , Axel Hengstermann , Guido Stochniol , Günther Bub , Jürgen Mosler , Andreas Sabbagh
IPC分类号： C07C51/42
CPC分类号： C08F120/06 , C07C51/377 , C07C51/43 , Y02P20/127 , C07C57/04
摘要： The invention relates to a process for the preparation of acrylic acid and a process for the preparation of polyacrylic acid comprising the process steps: (a1) preparation of 3-hydroxypropionic acid from a biological material to give a fluid, in particular aqueous, phase containing 3-hydroxypropionic acid; (a2) dehydration of the 3-hydroxypropionic acid to give a fluid, in particular aqueous, solution containing acrylic acid; (a3) purification of the solution containing acrylic acid by a suspension crystallization or a layer crystallization to give a purified phase; and corresponding devices for carrying out these processes, and acrylic acid and polyacrylates. The invention is distinguished in that acrylic acid and polyacrylates can thereby be prepared efficiently, inexpensively, and sustainably with simple means and with a high purity on the basis of regenerable raw materials.
摘要翻译：本发明涉及一种制备丙烯酸的方法和一种制备聚丙烯酸的方法，包括以下步骤：（a1）从生物材料制备3-羟基丙酸，得到流体，特别是含水相，含有 3-羟基丙酸; （a2）将3-羟基丙酸脱水得到流体，特别是含丙烯酸的水溶液; （a3）通过悬浮结晶或层结晶纯化含丙烯酸的溶液，得到纯化相; 和用于进行这些工艺的相应装置，以及丙烯酸和聚丙烯酸酯。本发明的区别在于，丙烯酸和聚丙烯酸酯由此可以以可再生的原料为基础，以简单的手段和高纯度有效，廉价和可持续地制备。

9. 发明申请

US20110144294A1 WATER-ABSORBING POLYMER STRUCTURES BASED ON RENEWABLE RAW MATERIALS AND PROCESS FOR THEIR PRODUCTION BY DEHYDRATION 有权
标题翻译：基于可再生原料的吸水聚合物结构及其脱水生产工艺
公开(公告)号：US20110144294A1
公开(公告)日：2011-06-16
申请号：US13029208
申请日：2011-02-17
申请人： Günther Bub , Jürgen Mosler , Franz-Felix Kuppinger , Andreas Sabbagh , Guido Stochniol , Jörg Sauer , Markus Winterberg , Udo Knippenberg , Günter Latoschinski , Franck Furno , Thorsten Schwärtzke , Jörg Leistner
发明人： Günther Bub , Jürgen Mosler , Franz-Felix Kuppinger , Andreas Sabbagh , Guido Stochniol , Jörg Sauer , Markus Winterberg , Udo Knippenberg , Günter Latoschinski , Franck Furno , Thorsten Schwärtzke , Jörg Leistner
IPC分类号： C08F120/06
CPC分类号： B01J19/2415 , B01J8/025 , B01J8/22 , B01J10/002 , B01J19/006 , B01J19/32 , B01J2208/00176 , B01J2208/0053 , B01J2219/0004 , B01J2219/00081 , B01J2219/00094 , B01J2219/00159 , B01J2219/00768 , B01J2219/185 , B01J2219/1943 , B01J2219/32279 , B01J2219/32286 , C07C45/52 , C07C51/252 , C08F2/00 , C08F2/20 , C08F220/06 , C07C47/22 , C07C57/04
摘要： The present invention relates to a process for production of acrylic acid, comprising at least the following steps: a. dehydration of glycerine to an acrolein-comprising dehydration product; b. gas phase oxidation of the dehydration product to obtain an acrylic acid-comprising monomer gas; c. bringing into contact of the monomer gas with a quench agent to obtain an acrylic acid-comprising quench phase; d. work-up of the quench phase to obtain an acrylic acid-comprising monomer phase; whereby, during the dehydration a liquid phase a1 and a gas phase a2 is present, whereby in the liquid phase a1 a plurality of gas bubbles is generated, as well as a process for production of polymers by polymerization of acrylic acid, preferably for production of water-absorbing polymers, the water-absorbing polymers obtainable by this process, a composite, a process for production of a composite, the composite obtainable by this process, and further chemical products.
摘要翻译：本发明涉及丙烯酸的制备方法，其至少包括以下步骤：a。将甘油脱水至含丙烯醛的脱水产物; b。脱水产物的气相氧化，得到含丙烯酸的单体气体; C。使单体气体与骤冷剂接触以获得含丙烯酸的淬火相; d。淬火阶段的后处理以获得含丙烯酸的单体相; 由此，在脱水时，存在液相a1和气相a2，由此在液相a1中产生多个气泡，以及通过丙烯酸的聚合制备聚合物的方法，优选用于生产吸水聚合物，通过该方法获得的吸水聚合物，复合材料，复合材料的制造方法，可通过该方法获得的复合材料，以及其他化学产品。

10. 发明授权

US07294741B2 Process for the production of acrylic acid 有权
标题翻译：丙烯酸生产工艺
公开(公告)号：US07294741B2
公开(公告)日：2007-11-13
申请号：US10498852
申请日：2002-12-13
申请人： Gunther Bub , Jurgen Mosler , Dietrich Maschmeyer , Andreas Sabbagh , Roland Fornika , Matthias Peuckert
发明人： Gunther Bub , Jurgen Mosler , Dietrich Maschmeyer , Andreas Sabbagh , Roland Fornika , Matthias Peuckert
IPC分类号： C07C51/16
CPC分类号： C07C51/252 , C07C57/04
摘要： The present invention relates to a process for the production of acrylic acid (AA) comprising the steps wherein: a) a 1st gas mixture comprising propylene, oxygen, an inert gas and steam is subjected to a 1st catalytic oxidation reaction stage thereby converting the propylene in the presence of a catalyst mainly into acrolein being contained in a 2nd gas mixture from said 1st catalytic oxidation reaction, b) said 2nd gas mixture from the 1st catalytic oxidation reaction stage is subjected to a 2nd catalytic oxidation reaction stage thereby converting the acrolein in the presence of a catalyst mainly into AA, being contained in a product gas, c) said product gas is subjected to a quench tower, wherein said AA is recovered as an aqueous solution comprising said AA being contained in the process water, wherein a process vent gas is obtained at the top of said quench tower, wherein, said 1st gas mixture has a steam/propylene ratio of >0.3 and
摘要翻译：本发明涉及一种生产丙烯酸（AA）的方法，包括以下步骤：a）将包含丙烯，氧气，惰性气体和蒸汽的第一气体混合物进行第一催化氧化反应阶段，由此将丙烯在主催化剂存在下，由所述第一催化氧化反应产生的第二气体混合物中含有丙烯醛，b）将来自第一催化氧化反应阶段的所述第二气体混合物进行第二催化氧化反应阶段，由此将丙烯醛转化为催化剂主要以AA形式存在于产物气体中，c）将所述产物气体进行骤冷塔，其中所述AA作为包含所述AA的水溶液被回收，所述水溶液包含在工艺用水中，其中过程在所述骤冷塔的顶部获得排出气体，其中所述第一气体混合物具有> 0.3和<2的蒸汽/丙烯比，并且所述处理水的量为 s或等于从骤冷塔抽出的所述水溶液中的水量。

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