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1.发明公开VERFAHREN ZUR HERSTELLUNG WENIGSTENS EINER ORGANISCHEN ZIELVERBINDUNG DURCH HETEROGEN KATALYSIERTE GASPHASEN-PARTIALOXIDATION 有权方法，通过非均相催化气相部分氧化生产至少一种有机化合物TARGET
公开(公告)号：EP1856022A1
公开(公告)日：2007-11-21
申请号：EP06708581.1
申请日：2006-03-01
IPC分类号： C07C57/05
摘要： Disclosed is a method for producing an organic target compound by carrying out a heterogeneously catalyzed partial gas phase oxidation of an organic precursor compound with molecular oxygen in two oxidation reactor paths that are operated in parallel, and eliminating the target compound from the mixture of the product gas flows in a reprocessing path. The catalyst fed to one of the oxidation paths contains a partial amount of catalyst on which the heterogeneously catalyzed partial gas phase oxidation has been carried out longer than on the partial amounts of catalyst fed to the other oxidation reactor path.
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2.发明公开VERFAHREN ZUR ABTRENNUNG VON METHACRYLSÄURE AUS ACRYLSÄURE ALS HAUPTBESTANDTEIL SOWIE ZIELPRODUKT UND METHACRYLSÄURE ALS NEBENKOMPONENTE ENTHALTENDER FLÜSSIGER PHASE 有权方法用于分离甲基丙烯酸为主要成分和目标产品和甲基丙烯酸THAN端组件，装有液体相
公开(公告)号：EP1856020A1
公开(公告)日：2007-11-21
申请号：EP06708577.9
申请日：2006-03-01
摘要： Disclosed is a method for eliminating methacrylic acid from a liquid phase (P) containing acrylic acid as a main component and target product and methacrylic acid as a secondary component. According to said method, the methacrylic acid is eliminated using crystallization, the acrylic acid accumulating in the formed crystallized product and the methacrylic acid accumulating in the remaining mother liquor.
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3.发明公开VERFAHREN ZUR HERSTELLUNG VON ACROLEIN DURCH HETEROGEN KATALYSIERTE PARTIELLE GASPHASENOXIDATION VON PROPEN 有权PROCESS FOR制备丙烯醛的丙烯均相催化部分气相氧化
公开(公告)号：EP1689524A1
公开(公告)日：2006-08-16
申请号：EP04797918.2
申请日：2004-11-16
IPC分类号： B01J23/888 , C07C45/35 , C07C47/22 , B01J35/02 , B01J35/00
CPC分类号： B01J35/026 , B01J23/8885 , B01J35/0006 , C07C45/35 , C07C47/22
摘要： The invention relates to a method for the heterogeneously-catalysed gas-phase partial oxidation of propene to produce acrolein with a propene loading of the catalyst bed of > 120 Nl/l h and a total content of CO2 and saturated hydrocarbons in the reaction product of less than 15 mol. %, whereby the catalyst in the catalyst bed is an annular full catalyst, the active mass of which is a multi-metal oxide in which the molar ratios are Co/Fe = 2 to 4 and Co/Mo = 0.3 to 0.7.
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4.发明公开VERFAHREN ZUM LANGZEITBETRIEB EINER HETEROGEN KATALYSIERTEN GASPHASENPARTIALOXIDATION VON ACROLEIN ZU ACRYLSÄURE 有权FOR A HETEROGENEOUS长周期运行方法催化丙烯醛的气相部分氧化成丙烯酸
公开(公告)号：EP1682477A1
公开(公告)日：2006-07-26
申请号：EP04765891.9
申请日：2004-10-08
CPC分类号： C07C51/252 , C07C57/04
摘要： The invention relates to the long term operation of a heterogeneously catalysed gas phase partial oxidation of acrolein in order to form acrylic acid. The temperature of the solid bed catalyst increases over time, and partial oxidation is interrupted and a gas containing oxygen is guided through the solid bed catalyst before the temperature reaches 8 °C.
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5.发明授权
公开(公告)号：EP1583779B1
公开(公告)日：2006-06-14
申请号：EP03785770.3
申请日：2003-12-08
摘要： The invention relates to a method for producing low-odor, hydrogel-forming polymers based on acrylic acid. Said method comprises the following steps: a) a polymeric hydrogel is produced by radically polymerizing a monomer composition containing at least 50 percent by weight of acrylic acid in an aqueous polymerizing medium, and the hydrogel is transformed into a particle-shaped hydrogel or a powder forming a hydrogel; and optionally b) the particle-shaped hydrogel or the powder forming a hydrogel is treated with a crosslinking substance comprising at least two functional groups that are reactive towards the carboxyl groups of the polymer, optionally in a latent form. The inventive method is characterized by the fact that the acrylic acid used in step a) comprises a total amount of oligomers of less than 500 ppm, preferably no more than 400 ppm, and especially no more than 300 ppm, ppm referring to proportions by weight relative to the acrylic acid. Advantageously, the proportion of triacrylic acid (compound I in which x = 2) and higher oligomers of the acrylic acid amounts to less than 100 ppm, especially less than 50 ppm, and particularly less than 10 ppm.
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6.发明公开VERFAHREN ZUR ABTRENNUNG VON METHACROLEIN AUS ACRYLSÄURE ALS HAUPTBESTANDTEIL SOWIE ZIELPRODUKT UND METHACROLEIN ALS NEBENKOMPONENTE ENTHALTENDER FLÜSSIGER PHASE 有权方法由丙烯酸SEPARATING异丁烯作为主要成分以及目标产品和甲基端组件，装有液体相
公开(公告)号：EP1856021A1
公开(公告)日：2007-11-21
申请号：EP06708585.2
申请日：2006-03-01
IPC分类号： C07C51/573 , C07C57/04
摘要： The invention relates to a method for separating methacrolein from acrylic acid as the main constituent and from a liquid phase P containing methacrolein as a minor constituent, in addition to a target product. According to said method, the separation takes place by crystallisation, whereby the acrylic acid is concentrated in the formed crystallisate and the methacrolein is concentrated in the remaining mother liquor.
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7.发明公开VERFAHREN ZUM LANGZEITBETRIEB EINER HETEROGEN KATALYSIERTEN GASPHASENPARTIALOXIDATION VON PROPEN ZU ACRYLSÄURE 有权FOR A HETEROGENEOUS长周期运行方法催化气相部分的丙烯为丙烯酸
公开(公告)号：EP1682478A1
公开(公告)日：2006-07-26
申请号：EP04790946.0
申请日：2004-10-28
CPC分类号： C07C51/252 , C07C57/04
摘要： The invention relates to a long-life method for two-stage heterogeneously-catalysed gas phase partial oxidation of propene into acrylic acid. According to said method, the temperature of the fixed catalyst beds is increased overtime; the gas phase partial oxidation is interrupted from time to time and, when the temperature of said fixed catalyst beds is increased, a gas mixture, containing oxygen, is led through the fixed catalyst beds.
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8.发明公开VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZU ACRYLSÄURE 审中-公开VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZUACRYLSÄURE
公开(公告)号：EP1611078A2
公开(公告)日：2006-01-04
申请号：EP04722163.5
申请日：2004-03-20
IPC分类号： C07C57/05
CPC分类号： C07C51/252 , C07C57/04
摘要： Disclosed is a method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid, according to which a specifically composed initial reaction gas mixture containing propene and oxygen is oxidized on a first fixed catalyst bed having a constant or increasing volume-specific activity in the direction of flow in a first reaction stage. The resulting gas mixture of the first reaction stage, which contains acrolein, is then oxidized on a second fixed catalyst bed having an increasing volume-specific activity in the direction of flow in a second reaction stage. The molded catalyst bodies of both fixed catalyst beds have an annular shape and are respectively provided with a specific multimetal oxide composition.
摘要翻译： 公开了一种丙烯非均相催化部分气相氧化成丙烯酸的方法，根据该方法，含有丙烯和氧的特定组成的初始反应气体混合物在第一固定催化剂床上被氧化，该催化剂床具有恒定的或增加的体积比活性 在第一反应阶段中的流动方向。 然后在含有丙烯醛的第一反应阶段的所得气体混合物在第二反应阶段中在流动方向上具有增加的体积比活性的第二固定催化剂床上被氧化。 两个固定催化剂床的模制催化剂体都具有环形形状并分别具有特定的多金属氧化物组合物。
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9.发明公开VERFAHREN ZUR HERSTELLUNG VON ACROLEIN ODER ACRYLSÄURE ODER DEREN GEMISCH DURCH HETEROGEN KATALYSIERTE PARTIELLE GASPHASENOXIDATION VON PROPYLEN 有权用于生产丙烯醛或丙烯酸或所述混合物通过丙烯的非均相催化部分气相氧化
公开(公告)号：EP1765753A1
公开(公告)日：2007-03-28
申请号：EP05745477.9
申请日：2005-05-04
发明人： DIETERLE, Martin , DIEFENBACHER, Armin , SCHINDLER, Götz-Peter , KLANNER, Catharina , MÜLLER-ENGEL, Klaus Joachim , ADAMI, Christoph
CPC分类号： C07C45/35 , B01J8/0453 , B01J8/0457 , C07C45/33 , C07C51/215 , C07C51/252 , C07C47/22 , C07C57/04
摘要： Disclosed is a method for producing acrolein, acrylic acid, or a mixture thereof by means of heterogeneously catalyzed partial gas phase oxidation of propylene. According to said method, the initial reaction gas mixture contains 6 to 9 percent by volume of propylene, 8 to 18 percent by volume of molecular oxygen, 6 to 30 percent by volume of propane, and 32 to 72 percent by volume of molecular nitrogen.
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10.发明公开VERFAHREN DER REKTIFIKATIVEN AUFTRENNUNG EINER ACRYLSÄURE EN THALTENDEN FLÜSSIGKEIT 有权VERFAHREN DER REKTIFIKATIVEN AUFTRENNUNG EINERACRYLSÄUREEN THALTENDENFLÜSSIGKEIT
公开(公告)号：EP1673334A2
公开(公告)日：2006-06-28
申请号：EP04765776.2
申请日：2004-10-02
IPC分类号： C07C51/44
摘要： The invention relates to a method for rectification separation of an acrylic acid-containing liquid consisting in supplying an acrylic acid-rich material flow to a rectification column upstream of a supplying area and in carrying out an inhibiting polymerisation in the top section of the rectification column with the aid of diacrylic acid.
摘要翻译： 本发明涉及一种精制分离含丙烯酸液体的方法，该方法包括将富含丙烯酸的物料流供应至供应区上游的精馏塔，并且在精馏塔的顶部区段中进行抑制聚合 借助二丙烯酸。
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