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1. 发明申请

US20050222459A1 (Meth)acrylic acid crystal and method for the production and purification of aqueous (meth)acrylic acid 有权
标题翻译：（甲基）丙烯酸晶体和生产和纯化（甲基）丙烯酸水溶液的方法
公开(公告)号：US20050222459A1
公开(公告)日：2005-10-06
申请号：US10507969
申请日：2003-03-17
申请人： Stefan Nordhoff , Torsten Balduf , Gunther Bub , Roland Fornika , Jurgen Mosler , Thomas Rathke , Axel Kobus , Dennis Thong
发明人： Stefan Nordhoff , Torsten Balduf , Gunther Bub , Roland Fornika , Jurgen Mosler , Thomas Rathke , Axel Kobus , Dennis Thong
IPC分类号： B01D9/02 , C07C51/43 , C07C57/07 , C07C51/42
CPC分类号： C07C51/43 , C07C57/04
摘要： The present invention relates to processes for purifying a composition containing (meth)acrylic acid, at least one impurity and water, wherein the composition has a water content in the range of 0.55 to 90, based on the composition, to form a purified phase containing (meth)acrylic acid and at least one impurity, wherein, in the purified phase, the quantity of at least one impurity is less than 7% by weight, based on (meth)acrylic acid in the purified phase.
摘要翻译：本发明涉及基于组合物纯化含有（甲基）丙烯酸，至少一种杂质和水的组合物的方法，其中组合物的水含量基于组合物为0.55至90，以形成含有（甲基）丙烯酸和至少一种杂质，其中，在纯化相中，基于纯化相中的（甲基）丙烯酸，至少一种杂质的量小于7重量％。

2. 发明授权

US07557245B2 (Meth)acrylic acid crystal and process for producing aqueous (meth)acrylic acid 有权
标题翻译：（甲基）丙烯酸晶体和制备（甲基）丙烯酸水溶液的方法
公开(公告)号：US07557245B2
公开(公告)日：2009-07-07
申请号：US10507969
申请日：2003-03-17
申请人： Stefan Nordhoff , Torsten Balduf , Gunther Bub , Roland Fornika , Jurgen Mosler , Thomas Rathke , Axel Kobus , Dennis Thong
发明人： Stefan Nordhoff , Torsten Balduf , Gunther Bub , Roland Fornika , Jurgen Mosler , Thomas Rathke , Axel Kobus , Dennis Thong
IPC分类号： C07C51/42
CPC分类号： C07C51/43 , C07C57/04
摘要： The present invention relates to processes for purifying a composition containing (meth)acrylic acid, at least one impurity and water, wherein the composition has a water content in the range of 0.55 to 90, based on the composition, to form a purified phase containing (meth)acrylic acid and at least one impurity, wherein, in the purified phase, the quantity of at least one impurity is less than 7% by weight, based on (meth)acrylic acid in the purified phase.
摘要翻译：本发明涉及基于组合物纯化含有（甲基）丙烯酸，至少一种杂质和水的组合物的方法，其中组合物的水含量基于组合物为0.55至90，以形成含有（甲基）丙烯酸和至少一种杂质，其中，在纯化相中，基于纯化相中的（甲基）丙烯酸，至少一种杂质的量小于7重量％。

3. 发明申请

US20070280866A1 Cleaving Of Oligomeric (Meth) Acrylic Acid In A Liquid Phase Under Pressure 审中-公开
标题翻译：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。

4. 发明申请

US20080091048A1 Method for the Purification of (Meth) Acrylic Acid 有权
标题翻译：纯化（甲基）丙烯酸的方法
公开(公告)号：US20080091048A1
公开(公告)日：2008-04-17
申请号：US11571877
申请日：2005-07-15
申请人： Stefan Nordhoff , Torsten Balduf , Jurgen Mosler , Wilfired Uhlich , Dennis Thong Yu-Chiang , Axel Kobus , Arndt Selbach , Jurgen Kohn
发明人： Stefan Nordhoff , Torsten Balduf , Jurgen Mosler , Wilfired Uhlich , Dennis Thong Yu-Chiang , Axel Kobus , Arndt Selbach , Jurgen Kohn
IPC分类号： C07C51/43 , C07C57/04 , B01J19/00
CPC分类号： C07C51/43 , C07C57/04
摘要： The present invention relates to a process for production of (meth)acrylic acid, whereby first a crude (meth)acrylic acid is produced and this crude (meth)acrylic acid is then continuously purified, whereby the continuous purification of the crude (meth)acrylic acid comprises the following process steps: a) in a composition comprising (meth)acrylic acid and impurities, precipitating the impurities in crystalline form from the composition; and b) separating the crystalline impurities precipitated from the composition. The invention also relates to the (meth)acrylic acid obtainable by this process, a device for production of (meth)acrylic acid, the use of the device or of a purification device for production of (meth)acrylic acid, (meth)acrylic acid, water-absorbing polymers, the use of water-absorbing polymers as well as fibers, sheets, foams and composites.
摘要翻译：本发明涉及一种生产（甲基）丙烯酸的方法，其中首先生产粗（甲基）丙烯酸，然后将该粗（甲基）丙烯酸连续纯化，由此连续纯化粗（甲基）丙烯酸，丙烯酸包括以下工艺步骤：a）在包含（甲基）丙烯酸和杂质的组合物中，从组合物中沉淀出结晶形式的杂质; 和b）分离从组合物中析出的结晶杂质。本发明还涉及通过该方法获得的（甲基）丙烯酸，（甲基）丙烯酸的制造装置，使用该装置或纯化装置用于制造（甲基）丙烯酸，（甲基）丙烯酸吸水聚合物，吸水聚合物以及纤维，片材，泡沫和复合材料的使用。

5. 发明申请

US20080119668A1 Method for the Extractive Purification of (Meth) Acrylic Acid by Using a Separating Agent 审中-公开
标题翻译：通过使用分离剂萃取（甲基）丙烯酸的方法
公开(公告)号：US20080119668A1
公开(公告)日：2008-05-22
申请号：US11575162
申请日：2005-09-13
申请人： Stefan Nordhoff , Axel Kobus , Torsten Balduf , Thomas Rathke , Dennis Thong Yu-Chiang , Jorg Leistner
发明人： Stefan Nordhoff , Axel Kobus , Torsten Balduf , Thomas Rathke , Dennis Thong Yu-Chiang , Jorg Leistner
IPC分类号： C07C51/43 , B01J19/00
CPC分类号： C07C51/43 , C07C51/48 , C07C57/04
摘要： A process for the preparation of (meth)acrylic acid is disclosed that includes: (a) contacting a product gas containing (meth)acrylic acid obtained from a gas phase oxidation with an aqueous phase in a quenching unit to obtain an aqueous quenched phase, (b) contacting the quenched phase with an organic separating agent in an extraction unit to give a first phase and at least one other phase, (c) crystallizing at least one of the first phase and the at least one other phase, such as by a suspension crystallization, in a crystallization unit to obtain a pure (meth)acrylic acid. Also disclosed are a device for the preparation of (meth)acrylic acid, a process for the preparation of a polymer from the (meth)acrylic acid, a device for the preparation of the polymer, a polymer obtainable by this process, and the use of the (meth)acrylic acid or the polymer in a chemical product, such as fibers or shaped articles.
摘要翻译：公开了一种制备（甲基）丙烯酸的方法，其包括：（a）使含有气相氧化的（甲基）丙烯酸的产物气体与水相在淬火单元中接触以获得水性淬火相，（b）将淬火相与提取单元中的有机分离剂接触以产生第一相和至少一个其它相，（c）使第一相和至少一个其它相中的至少一个结晶，例如通过在结晶单元中获得纯的（甲基）丙烯酸的悬浮液结晶。还公开了用于制备（甲基）丙烯酸的装置，从（甲基）丙烯酸制备聚合物的方法，用于制备聚合物的装置，可通过该方法获得的聚合物和使用的（甲基）丙烯酸或化合物中的聚合物，例如纤维或成形制品。

6. 发明申请

US20090149562A1 PURIFICATION OF A DISTILLED BOTTOM PRODUCT CONTAINING (METH)ACRYLIC ACID BY MEANS OF A CRYSTALLIZATION PROCESS 审中-公开
标题翻译：通过结晶过程纯化含有（甲基）丙烯酸的蒸馏底物产物
公开(公告)号：US20090149562A1
公开(公告)日：2009-06-11
申请号：US11575157
申请日：2005-09-13
申请人： Stefan Nordhoff , Thomas Rathke , Torsten Balduf , Axel Kobus , Dennis Thong Yu-Chiang , Jorg Leistner
发明人： Stefan Nordhoff , Thomas Rathke , Torsten Balduf , Axel Kobus , Dennis Thong Yu-Chiang , Jorg Leistner
IPC分类号： C07C51/42 , B01J19/00 , C08G63/00
CPC分类号： C07C51/42 , C07C51/43 , C07C63/26
摘要： A process for the preparation of (meth)acrylic acid is disclosed that includes: (a) contacting a product gas containing (meth)acrylic acid obtained from a gas phase oxidation with an aqueous phase in a quenching unit to obtain an aqueous quenched phase, (b) distilling the quenched phase in a distillation unit to obtain a bottom product and a top product, and (c) crystallizing at least the bottom product in a crystallization unit to obtain pure (meth)acrylic acid. An organic separating agent can be added after the quenching unit, such as at the latest in the crystallization unit. Also disclosed are a device for the preparation of (meth)acrylic acid, a process for the preparation of a polymer from the (meth)acrylic acid, a device for the preparation of the polymer, a polymer obtainable by this process, and the use of the (meth)acrylic acid or the polymer in a chemical product, such as fibers or shaped articles.
摘要翻译：公开了一种制备（甲基）丙烯酸的方法，其包括：（a）使含有气相氧化的（甲基）丙烯酸的产物气体与水相在淬火单元中接触以获得水性淬火相，（b）在蒸馏单元中蒸馏淬火相以获得底部产物和顶部产物，和（c）至少在结晶单元中结晶底部产物以获得纯的（甲基）丙烯酸。可以在淬火单元之后添加有机分离剂，例如最后在结晶单元中。还公开了用于制备（甲基）丙烯酸的装置，从（甲基）丙烯酸制备聚合物的方法，用于制备聚合物的装置，可通过该方法获得的聚合物和使用的（甲基）丙烯酸或化合物中的聚合物，例如纤维或成形制品。

7. 发明授权

US07803969B2 Continuous process for the production and purification of acrylic acid 有权
标题翻译：用于生产和纯化丙烯酸的连续工艺
公开(公告)号：US07803969B2
公开(公告)日：2010-09-28
申请号：US10466176
申请日：2002-01-14
申请人： Stefan Nordhoff , Axel Kobus , Stefan Gross , Hans-Rolf Lausch , Torsten Balduf , Roland Fornika , Guenther Bub
发明人： Stefan Nordhoff , Axel Kobus , Stefan Gross , Hans-Rolf Lausch , Torsten Balduf , Roland Fornika , Guenther Bub
IPC分类号： C07C51/42
CPC分类号： C07C51/43 , C07C57/04
摘要： The invention relates to a process for the purification of (meth)acrylic acid in a process stage that comprises the following process steps: a) (meth)acrylic acid is crystallized out from a mother liquor; b) crystallized (meth)acrylic acid is separated from the mother liquor; c) at least part of the separated (meth)acrylic acid crystals are melted; d) the melted part is at least partially recycled to the step a) or step b). The process according to the invention, the apparatus suitable for implementing the process, and the use of the apparatus according to the invention for the production of (meth)acrylic acid are characterized by a high purity of the thereby obtainable (meth)acrylic acid as well as by a high efficiency with regard to the achievable yield and necessary energy requirement.
摘要翻译：本发明涉及在工艺阶段中纯化（甲基）丙烯酸的方法，该方法包括以下工艺步骤：a）（甲基）丙烯酸从母液中结晶出来; b）结晶的（甲基）丙烯酸与母液分离; c）至少部分分离的（甲基）丙烯酸晶体熔融; d）熔化的部分至少部分地再循环到步骤a）或步骤b）。根据本发明的方法，适用于实施该方法的装置以及根据本发明的用于制备（甲基）丙烯酸的装置的用途，其特征在于由此获得的（甲基）丙烯酸的纯度高以及在可实现的产量和必要的能量需求方面的高效率。

8. 发明授权

US07964689B2 Superabsorbent polymer made from acrylic acid 有权
标题翻译：由丙烯酸制成的超吸收聚合物
公开(公告)号：US07964689B2
公开(公告)日：2011-06-21
申请号：US12880633
申请日：2010-09-13
申请人： Stefan Nordhoff , Axel Kobus , Stefan Gross , Hans-Rolf Lausch , Torsten Balduf , Roland Fornika , Guenther Bub
发明人： Stefan Nordhoff , Axel Kobus , Stefan Gross , Hans-Rolf Lausch , Torsten Balduf , Roland Fornika , Guenther Bub
IPC分类号： C08F20/06 , C07C51/42
CPC分类号： C07C51/43 , C07C57/04
摘要： The invention relates to a superabsorbent polymer that includes a (meth)acrylic acid made by a process that comprises the following process steps: a) (meth)acrylic acid is crystallized out from a mother liquor; b) crystallized (meth)acrylic acid is separated from the mother liquor; c) at least part of the separated (meth)acrylic acid crystals are melted; d) the melted part is at least partially recycled to the step a) or step b). The superabsorbent polymer according to the present invention includes an process to make (meth)acrylic acid, the apparatus suitable for implementing the process, and the use of the apparatus for the production of (meth)acrylic acid characterized by a high purity of the thereby obtainable (meth)acrylic acid as well as by a high efficiency with regard to the achievable yield and necessary energy requirement, thereby providing an improved superabsorbent polymer.
摘要翻译：本发明涉及一种超吸收性聚合物，其包含通过包括以下工艺步骤的方法制备的（甲基）丙烯酸：a）（甲基）丙烯酸从母液中结晶出来; b）结晶的（甲基）丙烯酸与母液分离; c）至少部分分离的（甲基）丙烯酸晶体熔融; d）熔化的部分至少部分地再循环到步骤a）或步骤b）。根据本发明的超吸收性聚合物包括制备（甲基）丙烯酸的方法，适用于实施该方法的装置，以及用于生产特征在于其高纯度的（甲基）丙烯酸的装置的用途可获得的（甲基）丙烯酸，以及关于可实现的产率和所需的能量需求的高效率，从而提供改进的超吸收性聚合物。

9. 发明申请

US20110028664A1 SUPERABSORBENT POLYMER MADE FROM ACRYLIC ACID 有权
标题翻译：由丙烯酸制备的超级聚合物
公开(公告)号：US20110028664A1
公开(公告)日：2011-02-03
申请号：US12880633
申请日：2010-09-13
申请人： Stefan Nordhoff , Axel Kobus , Stefan Gross , Hans-Rolf Lausch , Torsten Balduf , Roland Fornika , Guenther Bub
发明人： Stefan Nordhoff , Axel Kobus , Stefan Gross , Hans-Rolf Lausch , Torsten Balduf , Roland Fornika , Guenther Bub
IPC分类号： C08F2/00
CPC分类号： C07C51/43 , C07C57/04
摘要： The invention relates to a superabsorbent polymer that includes a (meth)acrylic acid made by a process that comprises the following process steps: a) (meth)acrylic acid is crystallized out from a mother liquor; b) crystallized (meth)acrylic acid is separated from the mother liquor; c) at least part of the separated (meth)acrylic acid crystals are melted; d) the melted part is at least partially recycled to the step a) or step b). The superabsorbent polymer according to the present invention includes an process to make (meth)acrylic acid, the apparatus suitable for implementing the process, and the use of the apparatus for the production of (meth)acrylic acid characterized by a high purity of the thereby obtainable (meth)acrylic acid as well as by a high efficiency with regard to the achievable yield and necessary energy requirement, thereby providing an improved superabsorbent polymer.
摘要翻译：本发明涉及一种超吸收性聚合物，其包含通过包括以下工艺步骤的方法制备的（甲基）丙烯酸：a）（甲基）丙烯酸从母液中结晶出来; b）结晶的（甲基）丙烯酸与母液分离; c）至少部分分离的（甲基）丙烯酸晶体熔融; d）熔化的部分至少部分地再循环到步骤a）或步骤b）。根据本发明的超吸收性聚合物包括制备（甲基）丙烯酸的方法，适用于实施该方法的装置，以及用于生产特征在于其高纯度的（甲基）丙烯酸的装置的用途可获得的（甲基）丙烯酸，以及关于可实现的产率和所需的能量需求的高效率，从而提供改进的超吸收性聚合物。

10. 发明授权

US07495129B2 Purification of a monomer by extraction with a phase former and crystallization 失效
标题翻译：通过用相变器萃取并结晶来纯化单体
公开(公告)号：US07495129B2
公开(公告)日：2009-02-24
申请号：US10541647
申请日：2004-01-13
申请人： Torsten Balduf , Stefan Nordhoff , Dennis Thong Yu-Chiang , Axel Kobus , Martin Roos
发明人： Torsten Balduf , Stefan Nordhoff , Dennis Thong Yu-Chiang , Axel Kobus , Martin Roos
IPC分类号： C07C51/42
CPC分类号： C07C51/43 , C07C51/48 , C07C57/04
摘要： The invention concerns a process for purification of an acidic monomer having a double bond, as well as a device for synthesis of an acidic monomer having a double bond, a process for producing an acidic monomer having a double bond, an acid monomer having a double bond and obtainable by this process, fibers, formed bodies, films, foams, superabsorbent polymers and other special polymers based on or containing this acidic monomer, the use of this acidic monomer in or for producing fibers, formed bodies, films, foams, superabsorbent polymers or other special polymers.
摘要翻译：本发明涉及一种用于纯化具有双键的酸性单体的方法，以及用于合成具有双键的酸性单体的方法，制备具有双键的酸性单体的方法，具有双键的酸单体的方法通过该方法获得的纤维，成形体，膜，泡沫，超吸收性聚合物和基于或含有该酸性单体的其它特殊聚合物，该酸性单体在纤维，成形体，膜，泡沫，超吸收剂中的用途聚合物或其他特殊聚合物。

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