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    Cleaving Of Oligomeric (Meth) Acrylic Acid In A Liquid Phase Under Pressure
    2.
    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。

    PURIFICATION OF A DISTILLED BOTTOM PRODUCT CONTAINING (METH)ACRYLIC ACID BY MEANS OF A CRYSTALLIZATION PROCESS
    3.
    发明申请
    PURIFICATION OF A DISTILLED BOTTOM PRODUCT CONTAINING (METH)ACRYLIC ACID BY MEANS OF A CRYSTALLIZATION PROCESS 审中-公开
    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。

    Method for the Extractive Purification of (Meth) Acrylic Acid by Using a Separating Agent
    4.
    发明申请
    Method for the Extractive Purification of (Meth) Acrylic Acid by Using a Separating Agent 审中-公开
    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。

    Method for the Purification of (Meth) Acrylic Acid
    7.
    发明申请
    Method for the Purification of (Meth) Acrylic Acid 有权
    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。

    Purification of a monomer by extraction with a phase former and crystallization
    8.
    发明授权
    Purification of a monomer by extraction with a phase former and crystallization 失效
    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。

    Method for the purification of (meth)acrylic acid
    9.
    发明授权
    Method for the purification of (meth)acrylic acid 有权
    纯化（甲基）丙烯酸的方法

    公开(公告)号：US07557246B2

    公开(公告)日：2009-07-07

    申请号：US11571877

    申请日：2005-07-15

    申请人： Stefan Nordhoff ,  Torsten Balduf ,  Jürgen Mosler ,  Wilfried Uhlich ,  Dennis Thong Yu-Chiang ,  Axel Kobus ,  Arndt Selbach ,  Jürgen Kohn

    发明人： Stefan Nordhoff ,  Torsten Balduf ,  Jürgen Mosler ,  Wilfried Uhlich ,  Dennis Thong Yu-Chiang ,  Axel Kobus ,  Arndt Selbach ,  Jürgen Kohn

    IPC分类号： C07C51/42

    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。

    Purification of a monomer by extraction with a phase-separating agent and crystallisation
    10.
    发明申请
    Purification of a monomer by extraction with a phase-separating agent and crystallisation 失效
    通过用分相剂萃取并结晶纯化单体

    公开(公告)号：US20060116532A1

    公开(公告)日：2006-06-01

    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, fibres, 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 fibres, 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。