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公开(公告)号：US09732023B2
公开(公告)日：2017-08-15
申请号：US14773602
申请日：2014-03-13
申请人： Torsten Balduf , Steffen Krill , Rudolf Burghardt
发明人： Torsten Balduf , Steffen Krill , Rudolf Burghardt
CPC分类号： C07C51/252 , B01J19/245 , B01J2219/24 , C07C45/75 , C07C51/44 , C07C51/48 , Y02P20/582 , C07C57/04 , C07C47/22
摘要： The invention relates to a process for preparation of at least one of methacrylic acid and a methacrylic acid ester, comprising the process stepsgas phase oxidation of at least one C4 compound, quenching of the reaction phase, separation and purification of the obtained methacrylic acid and optionally esterification, wherein the C4 compound is a methacrolein comprising mixture, originating from at least two different methacrolein sources, a first methacrolein source being a feed stream obtained by the heterogeneously catalyzed gas phase oxidation of isobutylene or tert-butyl alcohol or isobutylaldehyde or a mixture of two or more thereof, a second methacrolein source being a feed stream obtained by the reaction of propionaldehyde with a C1 extending agent, preferably formaldehyde, and where said methacrolein can be obtained either completely from the first methacrolein source, or completely from the second methacrolein source or from any mixture of both.
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公开(公告)号：US09890105B2
公开(公告)日：2018-02-13
申请号：US14784320
申请日：2014-04-11
申请人： Steffen Krill , Torsten Balduf , Martin Koestner , Matthias Groemping , Alexander Lygin , Rudolf Burghardt
发明人： Steffen Krill , Torsten Balduf , Martin Koestner , Matthias Groemping , Alexander Lygin , Rudolf Burghardt
摘要： The present invention relates to a process for producing methyl methacrylate, comprising the following steps: A) producing methacrolein and B) reacting the methacrolein obtained in step A) in an oxidative esterification reaction to give methyl methacrylate, characterized in that the two steps A) and B) take place in a liquid phase at a pressure of from 2 to 100 bar, and step B) is carried out in the presence of a heterogeneous noble-metal-containing catalyst comprising metals and/or comprising metal oxides.
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3.发明授权Method for producing methacrolein and the conditioning/draining thereof for direct oxidative esterification 有权甲基丙烯醛的制备方法及其直接氧化酯化的调理/排水公开(公告)号：US09580374B2
公开(公告)日：2017-02-28
申请号：US14916440
申请日：2014-08-27
CPC分类号： C07C45/75 , C07C45/80 , C07C45/82 , C07C45/84 , C07C67/39 , C07C67/54 , C07C69/54 , C07C47/22
摘要： The present invention relates to a process for preparing methyl methacrylate by direct oxidative esterification of methacrolein and the preparation of methacrolein. It is a feature of this novel process that it was possible to distinctly increase the yield and the efficiency of the process compared to the prior art through a sequence of different distillation steps.
摘要翻译： 本发明涉及通过甲基丙烯醛的直接氧化酯化和甲基丙烯醛的制备来制备甲基丙烯酸甲酯的方法。 这种新方法的一个特征是，通过不同蒸馏步骤的顺序，与现有技术相比，有可能明显提高该方法的产率和效率。
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4.发明申请PROCESS FOR PREPARING UNSATURATED ESTERS PROCEEDING FROM ALDEHYDES BY DIRECT OXIDATIVE ESTERIFICATION 有权通过直接氧化法制备从醛类中得到的不饱和酯的方法公开(公告)号：US20160251301A1
公开(公告)日：2016-09-01
申请号：US15030775
申请日：2014-12-05
申请人： Alexander LYGIN , Steffen KRILL , Torsten BALDUF , Rudolf BURGHARDT , Andreas TEPPERIS , Matthias GRÖMPING
发明人： Steffen KRILL , Alexander LYGIN , Torsten BALDUF , Rudolf BURGHARDT , Andreas TEPPERIS , Matthias GROEMPING
CPC分类号： C07C67/39 , B01J23/02 , B01J23/892 , B01J35/0006 , B01J35/0013 , Y02P20/582 , C07C69/54
摘要： The present invention relates to a process for preparing methyl methacrylate by a direct oxidative esterification of methacrolein with oxygen and methanol, which is conducted in the liquid phase at a pressure of 2 to 100 bar with a gold catalyst. According to the invention, the liquid phase is withdrawn continuously from the reactor and optionally enriched with oxygenous gas, the pH, after the withdrawal, is adjusted to a pH between 5 and 9 by means of addition of a basic solution and this liquid phase is conducted back into the reactor again to an extent of at least 50%.
摘要翻译： 本发明涉及一种通过甲基丙烯醛与氧和甲醇直接氧化酯化制备甲基丙烯酸甲酯的方法，该方法是用金催化剂在2-100巴的压力下在液相中进行。 根据本发明，将液相从反应器连续取出并任选地富含氧气，通过加入碱性溶液将pH值在5至9之间通过加入碱性溶液调节到pH值，该液相为 再次进入反应器至少达到50％的程度。
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5.发明申请Cleaving Of Oligomeric (Meth) Acrylic Acid In A Liquid Phase Under Pressure 审中-公开在压力下在液相中裂解低聚（甲基）丙烯酸公开(公告)号：US20070280866A1
公开(公告)日：2007-12-06
申请号：US10589775
申请日：2005-02-18
申请人： Torsten Balduf , Jurgen Mosler , Thomas Rathke , Dennis Thong Yu-Chiang , Axel Kobus , Rudolf Burghardt , Michael Fricke , Stefan Nordhoff
发明人： Torsten Balduf , Jurgen Mosler , Thomas Rathke , Dennis Thong Yu-Chiang , Axel Kobus , Rudolf Burghardt , Michael Fricke , Stefan Nordhoff
IPC分类号： B01J8/00 , C07C237/16 , C07C55/00 , C07C69/74
CPC分类号： B01D9/0059 , B01D3/14 , B01D3/146 , B01D5/0054 , B01J19/24 , B01J2219/00006 , B01J2219/00094 , C07C51/09 , C07C67/03 , C07C57/04 , C07C69/54
摘要： The present invention relates to a process for cleaving a (meth)acrylic acid oligomer of structure I wherein R1 is a hydrogen atom or a C1 to C10 alkyl groups, R2 is a hydrogen atom or a methyl group, and n is a whole number within the range between 1 and 200, optionally in the presence of a cleaving agent of the structure R3—OH or of the structure (R4)2—N—H, whereby R3 is a hydrogen atom, a C1 to C12 alkyl group, or a —CxH2x—OH— group, whereby x is a whole number within a range from 1 to 12, and R4 is a hydrogen atom or a C1 to C12 alkyl group, with the proviso that not both R4 groups are hydrogen atoms, whereby the (meth)acrylic acid oligomers are heated with the cleaving agent to a temperature of at least 50° C. at a pressure of at least 1 bar. The present invention also relates to the use of water, optionally with a protic compound as cleaving agent for cleaving (meth)acrylic acid oligomers, a device for (meth)acrylic acid synthesis, the use of this device for production of (meth)acrylic acid, as well as (meth)acrylic acid which has been produced using this device.
摘要翻译： 本发明涉及一种用于切割结构I的（甲基）丙烯酸低聚物的方法，其中R 1是氢原子或C 1至C 10 烷基，R 2是氢原子或甲基，n是整数在1和200之间的范围内，任选地在存在结构的裂解剂的情况下 R 3 -OH或结构（R 4 S）2 -NH，其中R 3是氢 原子，C 1至C 12烷基或-C 2 H 2 H 2 -OH基团 ，其中x是在1至12的范围内的整数，R 4是氢原子或C 1至C 12的整数。 烷基，条件是不是两个R 4基团都是氢原子，由此将（甲基）丙烯酸低聚物用裂解剂加热到至少50℃的温度，压力 至少1巴。 本发明还涉及水，任选地含有质子化合物作为裂解（甲基）丙烯酸低聚物的裂解剂的用途，（甲基）丙烯酸合成装置，使用该装置生产（甲基）丙烯酸 酸，以及使用该装置制备的（甲基）丙烯酸。
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公开(公告)号：US10125077B2
公开(公告)日：2018-11-13
申请号：US15515682
申请日：2015-11-16
IPC分类号： C07C57/02 , C07C57/04 , C07C45/75 , C07C51/25 , C07C51/48 , B01D3/14 , B01D69/02 , B01J19/18 , C07C51/235 , C07C47/04 , C07C47/22
摘要： The present invention relates to an optimized process for preparing methacrylic acid, wherein methacrolein is prepared in a first stage from propionaldehyde and formaldehyde by means of a Mannich reaction and oxidized in a second stage to methacrylic acid. More particularly, the present invention relates to the reduction in the amounts of catalyst to be used in the first stage, especially to the reduction in the amounts of acid to be used here, by virtue of the additional installation of recycling streams suitable for the purpose.
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公开(公告)号：US20170305830A1
公开(公告)日：2017-10-26
申请号：US15515682
申请日：2015-11-16
CPC分类号： C07C57/04 , B01D3/14 , B01D69/02 , B01J19/1818 , C07C45/75 , C07C47/04 , C07C47/22 , C07C51/235 , C07C51/252 , C07C51/48
摘要： The present invention relates to an optimized process for preparing methacrylic acid, wherein methacrolein is prepared in a first stage from propionaldehyde and formaldehyde by means of a Mannich reaction and oxidized in a second stage to methacrylic acid. More particularly, the present invention relates to the reduction in the amounts of catalyst to be used in the first stage, especially to the reduction in the amounts of acid to be used here, by virtue of the additional installation of recycling streams suitable for the purpose.
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8.发明申请METHOD FOR PRODUCING METHACROLEIN AND THE CONDITIONING/DRAINING THEREOF FOR DIRECT OXIDATIVE ESTERIFICATION 有权用于生产甲基纤维素的方法及其用于直接氧化固化的调节/排出公开(公告)号：US20160200660A1
公开(公告)日：2016-07-14
申请号：US14916440
申请日：2014-08-27
CPC分类号： C07C45/75 , C07C45/80 , C07C45/82 , C07C45/84 , C07C67/39 , C07C67/54 , C07C69/54 , C07C47/22
摘要： The present invention relates to a process for preparing methyl methacrylate by direct oxidative esterification of methacrolein and the preparation of methacrolein. It is a feature of this novel process that it was possible to distinctly increase the yield and the efficiency of the process compared to the prior art through a sequence of different distillation steps.
摘要翻译： 本发明涉及通过甲基丙烯醛的直接氧化酯化和甲基丙烯醛的制备来制备甲基丙烯酸甲酯的方法。 这种新方法的一个特征是，通过不同蒸馏步骤的顺序，与现有技术相比，有可能明显提高该方法的产率和效率。
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公开(公告)号：US20160068464A1
公开(公告)日：2016-03-10
申请号：US14784320
申请日：2014-04-11
申请人： Steffen KRILL , Torsten BALDUF , Martin KÖSTNER , Matthias GRÖMPING , Alexander LYGIN , Rudolf BURGHARDT
发明人： Steffen KRILL , Torsten BALDUF , Martin KOESTNER , Matthias GROEMPING , Alexander LYGIN , Rudolf BURGHARDT
摘要： The present invention relates to a process for producing methyl methacrylate, comprising the following steps: A) producing methacrolein and B) reacting the methacrolein obtained in step A) in an oxidative esterification reaction to give methyl methacrylate, characterized in that the two steps A) and B) take place in a liquid phase at a pressure of from 2 to 100 bar, and step B) is carried out in the presence of a heterogeneous noble-metal-containing catalyst comprising metals and/or comprising metal oxides.
摘要翻译： 本发明涉及一种生产甲基丙烯酸甲酯的方法，包括以下步骤：A）制备异丁烯醛，B）使步骤A）中得到的异丁烯醛在氧化酯化反应中反应得到甲基丙烯酸甲酯，其特征在于步骤A） 和B）在2至100巴的压力下在液相中进行，并且步骤B）在包含金属和/或包含金属氧化物的含相含贵金属的催化剂存在下进行。
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10.发明授权公开(公告)号：US09617199B2
公开(公告)日：2017-04-11
申请号：US15030775
申请日：2014-12-05
申请人： Steffen Krill , Alexander Lygin , Torsten Balduf , Rudolf Burghardt , Andreas Tepperis , Matthias Groemping
发明人： Steffen Krill , Alexander Lygin , Torsten Balduf , Rudolf Burghardt , Andreas Tepperis , Matthias Groemping
CPC分类号： C07C67/39 , B01J23/02 , B01J23/892 , B01J35/0006 , B01J35/0013 , Y02P20/582 , C07C69/54
摘要： The present invention relates to a process for preparing methyl methacrylate by a direct oxidative esterification of methacrolein with oxygen and methanol, which is conducted in the liquid phase at a pressure of 2 to 100 bar with a gold catalyst. According to the invention, the liquid phase is withdrawn continuously from the reactor and optionally enriched with oxygenous gas, the pH, after the withdrawal, is adjusted to a pH between 5 and 9 by means of addition of a basic solution and this liquid phase is conducted back into the reactor again to an extent of at least 50%.
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