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1. 发明授权

US06646161B1 Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents 有权
$Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents$
标题翻译：含有丙烯酸或甲基丙烯酸并具有高比例不可冷凝成分的热气体混合物的分级冷凝的方法
公开(公告)号：US06646161B1
公开(公告)日：2003-11-11
申请号：US09508077
申请日：2000-03-13
申请人： Bernd Eck , Otto Machhammer , Theo Proll , Volker Schliephake , Joachim Thiel , Klaus Bröllos
发明人： Bernd Eck , Otto Machhammer , Theo Proll , Volker Schliephake , Joachim Thiel , Klaus Bröllos
IPC分类号： C07C5142
CPC分类号： B01D5/003 , C07C51/44 , C07C57/04
摘要： A process for the fractional condensation of a gas mixture which, in addition to acrylic acid or methacrylic acid, also contains at least one further condensable component and additionally a high proportion of one or more noncondensable components, wherein the gas mixture is passed through a column having separatory internals and the condensable components are condensed by cooling.
摘要翻译：一种除丙烯酸或甲基丙烯酸之外还含有至少一种其它可冷凝组分和另外高比例的一种或多种不可冷凝组分的气体混合物的分级冷凝的方法，其中气体混合物通过柱具有分离内件和可冷凝组分通过冷却而冷凝。

2. 发明授权

US06448439B1 Method for producing acrylic acid and methacrylic acid 有权
标题翻译：制备丙烯酸和甲基丙烯酸的方法
公开(公告)号：US06448439B1
公开(公告)日：2002-09-10
申请号：US09508084
申请日：2000-03-13
申请人： Bernd Eck , Otto Machhammer , Theo Proll , Volker Schliephake , Joachim Thiel , Klaus Bröllos
发明人： Bernd Eck , Otto Machhammer , Theo Proll , Volker Schliephake , Joachim Thiel , Klaus Bröllos
IPC分类号： C07C5142
CPC分类号： C07C51/43 , C07C57/04
摘要： A process for preparing acrylic acid or methacrylic acid comprises preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid. The product is removed from the gaseous product mixture by a process comprising the following steps: (a) condensing said gaseous product mixture, (b) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (a), (c) removing the resulting crystals from the mother liquor, and (d) recycling at least a portion of said mother liquor from step (c) into step (a).
摘要翻译：制备丙烯酸或甲基丙烯酸的方法包括制备气态产物混合物，其基本上具有C3- / C4-烷烃， - 烯烃， - 链烷醇和/或 - 烷烃和/或 - 烷烃的催化气相氧化反应混合物的组成和/或其前体形成丙烯酸或甲基丙烯酸。通过包括以下步骤的方法从气态产物混合物中除去产物：（a）冷凝所述气态产物混合物，（b）从步骤（a）中获得的溶液中结晶丙烯酸或甲基丙烯酸，（c）从母液中得到的晶体，和（d）将来自步骤（c）的所述母液的至少一部分再循环到步骤（a）中。

3. 发明授权

US06433222B1 Method for producing acrylic acid 有权
标题翻译：制备丙烯酸的方法
公开(公告)号：US06433222B1
公开(公告)日：2002-08-13
申请号：US09764985
申请日：2001-01-22
申请人： Bernd Eck , Jörg Heilek , Volker Schliephake , Theo Proll , Klaus Bröllos , Otto Machhammer , Joachim Thiel
发明人： Bernd Eck , Jörg Heilek , Volker Schliephake , Theo Proll , Klaus Bröllos , Otto Machhammer , Joachim Thiel
IPC分类号： C07C5142
CPC分类号： C07C51/43 , C07C57/04
摘要： A process for the preparation of acrylic acid by: (a) preparation of a gaseous product mixture which essentially has the composition of a reaction mixture of catalytic gas-phase oxidation of C3-alkanes, C3-alkenes, C3-alkanols and/or C3-alkanals and/or intermediates thereof to acrylic acid, which comprises (b) condensation of the gaseous product mixture, (c) crystallization of the acrylic acid from the solution obtained in stage (b), with partial evaporation of the solution under reduced pressure, (d) isolation of the resulting crystals from the mother liquor, (e) recycling of at least a part of the mother liquor from stage (d) to stage (b) and (f) recycling of at least a part of the evaporated solution from stage (c) to stage (b).
摘要翻译：一种通过以下方法制备丙烯酸的方法：（a）制备气态产物混合物，其基本上具有C3-烷烃，C3-烯烃，C3-链烷醇和/或C3的催化气相氧化反应混合物的组成 - 烷醇和/或其中间体，其包括（b）气态产物混合物的冷凝，（c）丙烯酸从阶段（b）中获得的溶液中的结晶，在减压下部分蒸发溶液，（d）从母液中分离得到的晶体，（e）将至少一部分母液从阶段（d）再循环到阶段（b），和（f）将至少一部分蒸发的从（c）阶段到（b）阶段的方案。

4. 发明授权

US06596901B1 Method for purifying acrylic acid and methacrylic acid 有权
标题翻译：丙烯酸和甲基丙烯酸的纯化方法
公开(公告)号：US06596901B1
公开(公告)日：2003-07-22
申请号：US09147484
申请日：1999-01-08
申请人： Bernd Eck , Otto Machhammer , Theo Proll , Volker Schliephake , Klaus Joachim Müller-Engel
发明人： Bernd Eck , Otto Machhammer , Theo Proll , Volker Schliephake , Klaus Joachim Müller-Engel
IPC分类号： C07C5142
CPC分类号： C07C51/43 , C07C57/04
摘要： A process for preparing acrylic acid or methacrylic acid comprises (a) preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid, characterized by (b) condensing said product mixture, (c) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (b), and (d) removing the resulting crystals from the mother liquor.
摘要翻译：制备丙烯酸或甲基丙烯酸的方法包括（a）制备气态产物混合物，其基本上具有C3- / C4-烷烃， - 烯烃， - 烷醇和/或 - 烷烃的催化气相氧化反应混合物的组成和/或其前体以形成丙烯酸或甲基丙烯酸，其特征在于（b）冷凝所述产物混合物，（c）从步骤（b）中获得的溶液中结晶丙烯酸或甲基丙烯酸，和（d）除去所得晶体从母酒。

5. 发明授权

US5831124A Purification of acrylic acid and methacrylic acid 失效
标题翻译：丙烯酸和甲基丙烯酸的纯化
公开(公告)号：US5831124A
公开(公告)日：1998-11-03
申请号：US798138
申请日：1997-02-12
申请人： Otto Machhammer , Albrecht Dams , Bernd Eck , Theo Proll
发明人： Otto Machhammer , Albrecht Dams , Bernd Eck , Theo Proll
IPC分类号： C07C57/04 , C07C51/43 , C07C57/05 , C07C57/07 , C07C51/42
CPC分类号： C07C51/43
摘要： Acrylic acid or methacrylic acid is purified by (a) subjecting a mixture comprising the acrylic acid or methacrylic acid to a sharply defined separation process essentially in the absence of an organic solvent, with the composition of the phase in which the acrylic acid or methacrylic acid accumulates remaining essentially constant when the composition of the other phases participating in the mass transfer changes, then taking off this phase and (b) subjecting at least a part of the remaining phase from stage(a) to a less sharply defined separation process and (c) feeding one of the phases formed in stage (b) to the sharply defined separation process in stage (a). In addition, the invention provides a process for preparing acrylic acid or methacrylic acid which includes the abovementioned purification process.
摘要翻译：丙烯酸或甲基丙烯酸通过（a）基本上在不存在有机溶剂的情况下对包含丙烯酸或甲基丙烯酸的混合物进行急剧定义的分离过程来纯化，其中丙烯酸或甲基丙烯酸当参与质量传递的其它相的组成发生变化时，剩下的基本上保持恒定，然后脱除该相，和（b）使来自阶段（a）的剩余相的至少一部分经受较不明确的分离过程和（ c）在步骤（a）中将阶段（b）中形成的相中的一个进料加入到明确限定的分离过程中。此外，本发明提供一种制备丙烯酸或甲基丙烯酸的方法，其包括上述纯化方法。

6. 发明授权

US06921837B2 Process for the purification and preparation of acrylic acid or methacrylic acid 有权
标题翻译：纯化和制备丙烯酸或甲基丙烯酸的方法
公开(公告)号：US06921837B2
公开(公告)日：2005-07-26
申请号：US10656203
申请日：2003-09-08
申请人： Bernd Eck , Jörg Heilek , Dieter Baumann , Volker Schliephake
发明人： Bernd Eck , Jörg Heilek , Dieter Baumann , Volker Schliephake
IPC分类号： C07C51/64 , C07C51/25 , C07C51/43 , C07C51/47 , C07C57/05 , C07C57/07 , C07C51/42
CPC分类号： C07C51/43 , C07C51/252 , C07C51/47 , C07C57/04
摘要： Acrylic acid or methacrylic acid is purified by crystallization to obtain crystals and a mother liquor, by a process in which the crystals are washed with a wash liquid containing the acid and having a temperature from 15 to 40° C. Furthermore, a process for the preparation of acrylic acid or methacrylic acid comprises the abovementioned purification process.
摘要翻译：丙烯酸或甲基丙烯酸通过结晶纯化，得到晶体和母液，其中晶体用含有酸的洗涤液洗涤并具有15至40℃的温度。此外，丙烯酸或甲基丙烯酸的制备包括上述纯化方法。

7. 发明授权

US06700016B1 Method of purifying and producing acrylic acid or methacrylic acid 有权
标题翻译：纯化和生产丙烯酸或甲基丙烯酸的方法
公开(公告)号：US06700016B1
公开(公告)日：2004-03-02
申请号：US09926711
申请日：2001-12-06
申请人： Bernd Eck , Jörg Heilek , Dieter Baumann , Volker Schliephake
发明人： Bernd Eck , Jörg Heilek , Dieter Baumann , Volker Schliephake
IPC分类号： C07C5142
CPC分类号： C07C51/43 , C07C51/252 , C07C51/47 , C07C57/04
摘要： Acrylic acid or methacrylic acid is purified be crystallization to obtain crystals and a mother liquor, by a process in which the crystals are washed with a was liquid containing the acid and having a temperature from 15 to 40° C. Furthermore, a process for the preparation of acrylic acid or methacrylic acid comprises the abovementioned purification process.
摘要翻译：通过使用含有酸的液体并且具有15至40℃的温度洗涤晶体的方法，将丙烯酸或甲基丙烯酸进行结晶以获得晶体和母液。此外，丙烯酸或甲基丙烯酸的制备包括上述纯化方法。

8. 发明授权

US06414190B1 Purification of acrylic acid by crystallization by means of vacuum evaporation 失效
标题翻译：通过真空蒸发结晶纯化丙烯酸
公开(公告)号：US06414190B1
公开(公告)日：2002-07-02
申请号：US09357955
申请日：1999-07-21
申请人： Bernd Eck , Jörg Heilek , Volker Schliephake
发明人： Bernd Eck , Jörg Heilek , Volker Schliephake
IPC分类号： C70C5142
CPC分类号： C07C51/43 , C07C57/04
摘要： In a process for purifying acrylic acid by crystallization by means of vacuum evaporation, a solution which contains acrylic acid and water and may contain further components is crystallized by means of vacuum evaporation with formation of a liquid phase, consisting of a mother liquor containing more than 10% by weight of water and of the crystals, and a vapor phase, the vapor phase is introduced into a liquid material in a condensation zone with formation of a liquid condensation mixture, and the liquid condensation mixture is recycled at least partly to the condensation zone, the operating conditions in the condensation zone being established so that no solid is precipitated.
摘要翻译：在通过真空蒸发结晶纯化丙烯酸的方法中，含有丙烯酸和水并可含有其它组分的溶液通过真空蒸发结晶，形成液相，由含有多于 10重量％的水和晶体，以及气相，在形成液体冷凝混合物的冷凝区中将气相引入液体材料中，并将液体冷凝混合物至少部分地再循环至冷凝物区域，建立冷凝区域中的操作条件，使得没有固体沉淀。

9. 发明申请

US20050006219A1 Thermal separating process for removing at least one stream containing enriched (meth)acrylic monomers 审中-公开
标题翻译：用于除去至少一种含有富含（甲基）丙烯酸单体的物流的热分离方法
公开(公告)号：US20050006219A1
公开(公告)日：2005-01-13
申请号：US10879737
申请日：2004-06-30
申请人： Bernd Eck , Ulrich Hammon , Klaus Muller-Engel , Jurgen Schroder , Joachim Thiel , Hans Martan
发明人： Bernd Eck , Ulrich Hammon , Klaus Muller-Engel , Jurgen Schroder , Joachim Thiel , Hans Martan
IPC分类号： B01D3/14 , B01D3/32 , C07C51/215 , C07C51/25 , C07C51/43 , C07C51/44 , B01D3/42 , C07C51/42
CPC分类号： C07C51/43 , B01D3/14 , B01D3/225 , B01D3/322 , C07C51/215 , C07C51/252 , C07C51/44 , Y10S203/22 , C07C57/04
摘要： A thermal separating process for removing a stream containing enriched (meth)acrylic monomers from a mixture containing (meth)acrylic monomers, in which the liquid phases retained in the separating space at high temperature and high (meth)acrylic monomer content are minimized.
摘要翻译：一种用于从含有（甲基）丙烯酸单体的混合物中除去含有富含（甲基）丙烯酸单体的物流的热分离方法，其中在高温和高（甲基）丙烯酸单体含量保留在分离空间中的液相被最小化。

10. 发明授权

US06541665B1 Method for purifying acrylic acid or methacrylic acid by crystallization and distillation 失效
标题翻译：通过结晶和蒸馏纯化丙烯酸或甲基丙烯酸的方法
公开(公告)号：US06541665B1
公开(公告)日：2003-04-01
申请号：US09719572
申请日：2001-01-02
申请人： Erik Bastiaensen , Bernd Eck , Joachim Thiel
发明人： Erik Bastiaensen , Bernd Eck , Joachim Thiel
IPC分类号： C07C5143
CPC分类号： C07C51/43 , C07C51/44 , C07C57/04
摘要： In a process for the purification of acrylic acid or methacrylic acid by crystallization and distillation, the following steps are carried out: (a) crystallization of a mixture containing the acrylic acid or methacrylic acid with formation of product crystals having a higher concentration of acrylic acid or methacrylic acid and of a mother liquor, (b) distillation of at least part of the mother liquor from step (a) with formation of a distillation residue, which is at least partly removed, and of a top product, (c) crystallization of at least part of the top product from step (b) with formation of a crystallization residue, which is removed, and of crystals and (d) recycling of the crystals from step (c) to the crystallization (a).
摘要翻译：在通过结晶和蒸馏纯化丙烯酸或甲基丙烯酸的方法中，进行以下步骤：（a）含有丙烯酸或甲基丙烯酸的混合物的结晶，形成具有较高浓度丙烯酸的产物晶体或甲基丙烯酸和母液，（b）蒸馏来自步骤（a）的至少部分母液，形成至少部分除去的蒸馏残余物和顶部产物，（c）结晶的至少部分来自步骤（b）的顶部产物的形成，其中除去了结晶残余物，以及晶体和（d）将步骤（c）中的晶体再循环至结晶（a）。

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