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公开(公告)号：US07150809B2
公开(公告)日：2006-12-19
申请号：US10823672
申请日：2004-04-14
IPC分类号： B01D3/00
CPC分类号： B01D3/326 , B01D3/324 , C07C51/44 , Y10S203/11 , Y10S203/22 , C07C57/04
摘要： (Meth)acrylic monomers are separated by a thermal separation process by ascending at least one ascending gaseous stream in a separating column containing a sequence of mass transfer trays and a liquid stream that contains dissolved polymerization inhibitor which descends in the separating column, and in at least one of the streams being (meth)acrylic monomers; and spraying the inner surface of the separating column with the descending liquid stream that contains the dissolved polymerization inhibitor, and the separating column having internals, certain areas of which are shadow regions of the sprayed descending liquid stream; and which shadow regions are equipped by covering means which prevent contact of the shadow regions with (meth)acrylic monomers and consequently undesired polymerization of monomer.
摘要翻译： （Meth）丙烯酸单体通过在含有一系列质量转移塔的分离塔中的至少一个上升气流上升和含有在分离塔中下降的溶解聚合抑制剂的液体流在热分离过程中分离， 至少一种物流是（甲基）丙烯酸单体; 并且用含有溶解的阻聚剂的下降液体流喷射分离塔的内表面，并且分离柱具有内部，其某些区域是喷射的下降液体流的阴影区域; 并且哪些阴影区域通过防止阴影区域与（甲基）丙烯酸单体接触的覆盖装置并因此单体的不希望的聚合来配备。
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公开(公告)号：US07537201B2
公开(公告)日：2009-05-26
申请号：US11442416
申请日：2006-05-30
IPC分类号： B01F3/04
CPC分类号： B01D3/326 , B01D3/324 , C07C51/44 , Y10S203/11 , Y10S203/22 , C07C57/04
摘要： A separating column containing a sequence of mass transfer trays that are supported by at least one covered double-T support and/or covered U-shaped support.
摘要翻译： 分离塔包含一系列传质托盘，其由至少一个覆盖的双T支撑和/或覆盖的U形支撑件支撑。
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公开(公告)号：US20060213758A1
公开(公告)日：2006-09-28
申请号：US11442416
申请日：2006-05-30
申请人： Volker Diehl , Ulrich Jager , Ulrich Hammon , Jurgen Schroder , Steffen Rissel
发明人： Volker Diehl , Ulrich Jager , Ulrich Hammon , Jurgen Schroder , Steffen Rissel
IPC分类号： B01D3/14
CPC分类号： B01D3/326 , B01D3/324 , C07C51/44 , Y10S203/11 , Y10S203/22 , C07C57/04
摘要： A separating column containing a sequence of mass transfer trays that are supported by at least one covered double-T support and/or covered U-shaped support.
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4.发明授权Process for separating acrylic acid present as a main constituent and glyoxal present as a by-product in a product gas mixture of a partial heterogeneously catalyzed gas phase oxidation of a C3 precursor compound of acrylic acid 有权用于分离作为主要成分存在的丙烯酸和乙二醛作为副产物存在于丙烯酸的C3前体化合物的部分非均相催化气相氧化的产物气体混合物中公开(公告)号：US08299299B2
公开(公告)日：2012-10-30
申请号：US12509078
申请日：2009-07-24
申请人： Till Blum , Peter Zurowski , Steffen Rissel , Sylke Haremza , Thorsten Friese , Ulrich Jaeger , Volker Schliephake , Klaus Joachim Mueller-Engel , Ulrich Hammon , Joerg Heilek , Imke Britta Mueller
发明人： Till Blum , Peter Zurowski , Steffen Rissel , Sylke Haremza , Thorsten Friese , Ulrich Jaeger , Volker Schliephake , Klaus Joachim Mueller-Engel , Ulrich Hammon , Joerg Heilek , Imke Britta Mueller
IPC分类号： C07C51/42
CPC分类号： C07C51/252 , C07C51/43 , C07C57/04
摘要： A process for separating acrylic acid present as a main product and glyoxal present as a by-product in a product gas mixture of a partial gas phase oxidation of a C3 precursor compound, in which a liquid phase P is obtained, which consists of acrylic acid to an extent of at least 70% of its weight and, based on the molar amount of acrylic acid present therein, comprises at least 200 molar ppm of glyoxal, in which the glyoxal is separated from the acrylic acid in the liquid phase P by crystallization.
摘要翻译： 将作为主要成分存在的丙烯酸和作为副产物存在的乙二醛的方法分离在得到液相P的C3前体化合物的部分气相氧化的产物气体混合物中，该混合物由丙烯酸 至少其重量的70％的程度，并且基于其中存在的丙烯酸的摩尔量，包含至少200摩尔ppm的乙二醛，其中通过结晶将乙二醛与液相P中的丙烯酸分离 。
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5.发明申请Method for the measurement of the pressure in a gas phase from rectification and/or absorption columns comprising (meth)acrylic acid the esters and/or nitriles thereof 审中-公开从包含（甲基）丙烯酸的精馏和/或吸收塔中测量气相中的压力的方法，其酯和/或腈公开(公告)号：US20050124075A1
公开(公告)日：2005-06-09
申请号：US10504986
申请日：2003-03-12
申请人： Ulrich Hammon , Jurgen Schroder , Steffen Rissel
发明人： Ulrich Hammon , Jurgen Schroder , Steffen Rissel
IPC分类号： G01L7/00 , C07C51/44 , C07C51/48 , C07C57/04 , C07C67/54 , C07C253/34 , C07C255/08 , G01L19/00 , G01N1/22
CPC分类号： C07C253/34 , C07C51/44 , C07C51/48 , C07C67/54 , Y10T436/25875 , C07C57/04 , C07C69/54 , C07C255/08
摘要： A process measures the pressure of a gas phase containing (meth)acrylic acid, the esters and/or nitrites thereof of a rectification and/or absorption column via open drillholes in the column wall and lines from the drillholes to the transducers by purging the lines with an oxygen-containing gas in the direction toward the open drillhole.
摘要翻译： 一个过程通过吹扫管线来测量含有（甲基）丙烯酸的气相的压力，精馏和/或吸收塔的酯和/或亚硝酸盐，通过柱壁中的开放的钻孔和从钻孔到换能器的管线 在朝向打开的钻孔的方向上具有含氧气体。
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6.发明申请PROCESS FOR SEPARATING ACRYLIC ACID PRESENT AS A MAIN CONSTITUENT AND GLYOXAL PRESENT AS A BY-PRODUCT IN A PRODUCT GAS MIXTURE OF A PARTIAL HETEROGENEOUSLY CATALYZED GAS PHASE OXIDATION OF A C3 PRECURSOR COMPOUND OF ACRYLIC ACID 有权分离出丙烯酸的方法作为主要成分和GLYOXAL存在作为产物中的副产物部分异构催化的气相混合丙烯酸C3前体化合物的气相氧化公开(公告)号：US20100022734A1
公开(公告)日：2010-01-28
申请号：US12509078
申请日：2009-07-24
申请人： Till Blum , Peter Zurowski , Steffen Rissel , Sylke Haremza , Thorsten Friese , Ulrich Jäger , Volker Schliephake , Klaus Joachim Müller-Engel , Ulrich Hammon , Jörg Heilek , Imke Britta Müller
发明人： Till Blum , Peter Zurowski , Steffen Rissel , Sylke Haremza , Thorsten Friese , Ulrich Jäger , Volker Schliephake , Klaus Joachim Müller-Engel , Ulrich Hammon , Jörg Heilek , Imke Britta Müller
CPC分类号： C07C51/252 , C07C51/43 , C07C57/04
摘要： A process for separating acrylic acid present as a main product and glyoxal present as a by-product in a product gas mixture of a partial gas phase oxidation of a C3 precursor compound, in which a liquid phase P is obtained, which consists of acrylic acid to an extent of at least 70% of its weight and, based on the molar amount of acrylic acid present therein, comprises at least 200 molar ppm of glyoxal, in which the glyoxal is separated from the acrylic acid in the liquid phase P by crystallization.
摘要翻译： 将作为主要成分存在的丙烯酸和作为副产物存在的乙二醛的方法分离在得到液相P的C3前体化合物的部分气相氧化的产物气体混合物中，该混合物由丙烯酸 至少其重量的70％的程度，并且基于其中存在的丙烯酸的摩尔量，包含至少200摩尔ppm的乙二醛，其中通过结晶将乙二醛与液相P中的丙烯酸分离 。
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7.发明申请PROCESS FOR REMOVAL OF ACRYLIC ACID FROM THE PRODUCT GAS MIXTURE OF A HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF AT LEAST ONE C3 PRECURSOR COMPOUND 审中-公开从产品中除去丙烯酸的方法异氰酸酯化合物的异构催化部分气相氧化的气体混合物公开(公告)号：US20110036704A1
公开(公告)日：2011-02-17
申请号：US12827161
申请日：2010-06-30
申请人： Till BLUM , Peter Zurowski , Steffen Rissel , Sylke Haremza , Thorsten Friese , Ulrich Jäger , Volker Schliephake , Klaus Joachim Müller-Engel , Ulrich Hammon , Frank Höfer
发明人： Till BLUM , Peter Zurowski , Steffen Rissel , Sylke Haremza , Thorsten Friese , Ulrich Jäger , Volker Schliephake , Klaus Joachim Müller-Engel , Ulrich Hammon , Frank Höfer
CPC分类号： C07C51/252 , C07C51/44 , C07C57/04
摘要： A process for removal of a crude acrylic acid from a product gas mixture which comprises glyoxal as a by-product from a heterogeneously catalyzed partial gas phase oxidation of at least one C3 precursor compound, which comprises the absorption of the acrylic acid in a high-boiling absorbent and the rectificative workup of the resulting adsorbate, and in which absorbent present in the bottoms liquid withdrawn from the bottom space of the absorption column is distilled off in a distillation unit and recycled into the absorption, before high boilers which remain are discharged, and in which the glyoxal content of the crude acrylic acid is reduced by restricting the high boiler residence time in the distillation unit.
摘要翻译： 一种从产物气体混合物中除去粗丙烯酸的方法，该产物气体混合物包含乙二醛作为副产物从至少一种C3前体化合物的非均相催化的部分气相氧化，其包括丙烯酸在高温下的吸收， 沸腾的吸收剂和所得到的被吸附物的整理处理，其中存在于从吸收塔的底部空间排出的底部液体中的吸收剂在蒸馏单元中被蒸馏除去，并在剩余的高锅炉排出之前再循环到吸收中， 并且其中粗丙烯酸的乙二醛含量通过限制在蒸馏单元中的高锅炉停留时间而降低。
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公开(公告)号：US20060233631A1
公开(公告)日：2006-10-19
申请号：US10568613
申请日：2004-08-17
申请人： Volker Diehl , Steffen Rissel , Silke Berndt , Mark Duda , Knut Eger , Markus Holzle , Veron Nsunda
发明人： Volker Diehl , Steffen Rissel , Silke Berndt , Mark Duda , Knut Eger , Markus Holzle , Veron Nsunda
IPC分类号： B65G65/00
CPC分类号： B65G69/16 , B01J8/003 , B01J8/06 , B01J2208/00752 , B01J2208/00778
摘要： A method of charging a vertical tube having an internal diameter of 50 mm or less with catalyst particles, which comprises introducing a filling aid into the vertical tube, where the filling aid comprises a flexible elongated body and the ratio of the cross section of the flexible elongated body to the cross section of the tube is from 0.003 to 0.08, and introducing the catalyst particles into the tube.
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公开(公告)号：US07597529B2
公开(公告)日：2009-10-06
申请号：US10568613
申请日：2004-08-17
申请人： Volker Diehl , Steffen Rissel , Silke Berndt , Mark Duda , Knut Eger , Markus Hoelzle , Veron Nsunda
发明人： Volker Diehl , Steffen Rissel , Silke Berndt , Mark Duda , Knut Eger , Markus Hoelzle , Veron Nsunda
CPC分类号： B65G69/16 , B01J8/003 , B01J8/06 , B01J2208/00752 , B01J2208/00778
摘要： A method of charging a vertical tube having an internal diameter of 50 mm or less with catalyst particles, which comprises introducing a filling aid into the vertical tube, where the filling aid comprises a flexible elongated body and the ratio of the cross section of the flexible elongated body to the cross section of the tube is from 0.003 to 0.08, and introducing the catalyst particles into the tube.
摘要翻译： 一种用催化剂颗粒填充内径为50mm或更小的垂直管的方法，包括将填充助剂引入垂直管中，其中填充助剂包括柔性细长体，柔性细长体的横截面积比 管的横截面的细长体积为0.003至0.08，并将催化剂颗粒引入管中。
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10.发明申请PROCESS FOR INHIBITING POLYMERIZATION OF (METH)ACRYLIC ACID AND/OR (METH)ACRYLIC ESTERS 有权抑制（甲基）丙烯酸和/或（甲基）丙烯酸酯的聚合方法公开(公告)号：US20110140050A1
公开(公告)日：2011-06-16
申请号：US12963920
申请日：2010-12-09
IPC分类号： C09K15/06
摘要： A process for inhibiting polymerization of (meth)acrylic acid and/or (meth)acrylic esters by introducing an oxygenous gas into the (meth)acrylic acid and/or the (meth)acrylic ester, in which the (meth)acrylic acid and/or the (meth)acrylic ester has a degree of purity of at least 95% and is in the liquid state.
摘要翻译： 将（甲基）丙烯酸和/或（甲基）丙烯酸酯引入到（甲基）丙烯酸酯中的（甲基）丙烯酸和/或（甲基）丙烯酸酯的聚合反应的方法， /或（甲基）丙烯酸酯的纯度至少为95％并处于液态。
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