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1. 发明公开

EP3274319A1 VERFAHREN ZUR HERSTELLUNG VON 1,3-BUTADIEN AUS N-BUTENEN DURCH OXIDATIVE DEHYDRIERUNG 无效
公开(公告)号：EP3274319A1
公开(公告)日：2018-01-31
申请号：EP16709473.9
申请日：2016-03-14
申请人： BASF SE , Linde AG
发明人： JOSCH, Jan Pablo , DEUBLEIN, Stephan , BENFER, Regina , GAITZSCH, Friedemann , REYNEKE, Hendrik , TOEGEL, Christine , WENNING, Ulrike , WELLENHOFER, Anton , BOELT, Heinz
IPC分类号： C07C5/48 , C07C7/09 , C07C7/11 , C07C11/167 , C07C7/00
CPC分类号： C07C5/48 , C07C7/005 , C07C7/08 , C07C7/09 , C07C7/11 , C07C11/167
摘要： The invention relates to a process for preparing butadiene from n-butenes, comprising the steps of: A) providing a feedstock gas stream a1 containing n-butenes; B) feeding feedstock gas stream a1 containing n-butenes, an oxygenous gas and an oxygenous cycle gas stream a2 into at least one oxidative dehydrogenation zone and oxidatively dehydrogenating n-butenes to butadiene, resulting in a product gas stream b containing butadiene, unconverted n-butenes, steam, oxygen, low-boiling hydrocarbons, and high-boiling secondary components, with or without carbon oxides and with or without inert gases; Ca) cooling product gas stream b and optionally removing at least some high-boiling secondary components and steam, resulting in a product gas stream b'; Cb) compressing and cooling product gas stream b' in at least one compression and cooling stage, resulting in at least one aqueous condensate stream c1 and one gas stream c2 containing butadiene, n-butenes, steam, oxygen and low-boiling hydrocarbons, with or without carbon oxides and with or without inert gases; Da) absorbing the C
4 hydrocarbons comprising butadiene and n-butenes in an aromatic hydrocarbon solvent as an absorbent stream A1 in an absorption column K1 and removing uncondensable and low-boiling gas constituents comprising steam, oxygen, low-boiling hydrocarbons, any carbon oxides, aromatic hydrocarbon solvent and any inert gases as a gas stream d2 from gas stream c2, resulting in an absorbent stream A1' laden with C
4 hydrocarbons and a gas stream d2, and then desorbing the C
4 hydrocarbons from the laden absorbent stream A1', resulting in a C
4 product gas stream d1; Db) recycling at least part of gas stream d2 as a cycle gas stream a2 into the oxidative dehydrogenation zone. The disclosed method is characterized in that the content of aromatic hydrocarbon solvent in cycle gas stream a2 is limited to less than 1% by volume by bringing gas stream d2 discharged in removal stage Da) into contact with an at least partially circulating liquid absorbent stream A2 for aromatic hydrocarbon solvent A1 in another column K2 and limiting the water content in the liquid absorbent stream A2 to no more than 80% by weight.

2. 发明公开

EP3214067A1 VERFAHREN ZUR AUFREINIGUNG VON CYCLOHEXANPOLYCARBONSÄUREESTERN 审中-公开
标题翻译：纯化环己烷多羧酸酯的方法
公开(公告)号：EP3214067A1
公开(公告)日：2017-09-06
申请号：EP17158957.5
申请日：2017-03-02
申请人： BASF SE
发明人： BITTERLICH, Stefan , SCHRAUT, Armin , GAITZSCH, Friedemann , HAAS, Michael , HAMMON, Ulrich
IPC分类号： C07C69/67 , C07C69/75
CPC分类号： C07C67/54 , C07C2601/14 , C07C69/75
摘要： Die vorliegende Erfindung betrifft ein Verfahren zur Aufreinigung von Cyclohexanpolycarbonsäureestern. Das Verfahren kann kontinuierlich oder batchweise durchgeführt werden.
摘要翻译：环己烷多羧酸酯的纯化方法本发明涉及环己烷多羧酸酯的纯化方法。该过程可以连续或分批进行。

3. 发明公开

EP4200273A1 PROCESS FOR THE PREPARATION OF C6-12 SATURATED ALIPHATIC CARBOXYLIC ACIDS 审中-实审
公开(公告)号：EP4200273A1
公开(公告)日：2023-06-28
申请号：EP21755792.5
申请日：2021-08-09
申请人： BASF SE
发明人： HAMANN, Jessica Nadine , TELES, Joaquim Henrique , OHLEMUELLER, Peter Georg , GAITZSCH, Friedemann , LIANG, Shelue , RITTINGER, Stefan , THRUN, Frauke , DEHN, Richard
IPC分类号： C07C51/44 , C07C51/235 , C07C53/126 , C07C53/128

5. 发明公开

EP3320963A1 VERFAHREN ZUR ABREICHERUNG VON AROMATISCHEM KOHLENWASSERSTOFF AUS EINEN ROHGASSTROM 审中-公开
标题翻译：从ROHGASSTROM制备芳烃的方法
公开(公告)号：EP3320963A1
公开(公告)日：2018-05-16
申请号：EP16198907.4
申请日：2016-11-15
申请人： BASF SE
发明人： BREITSCHEIDEL, Boris , WELLHAUSEN, Tim , GAITZSCH, Friedemann , SCHUNCK, Peter , KRIHA, Olaf , STAUB, Stefan
IPC分类号： B01D53/14
CPC分类号： B01D53/1487 , B01D53/1493 , B01D2252/205 , B01D2252/504 , B01D2257/7027
摘要： Verfahren zur Abreicherung von aromatischem Kohlenwasserstoff aus einem Rohgasstrom, umfassend die Verwendung eines Absorptionsmediums, das eine oder mehrere Verbindungen der allgemeinen Formel (I):

worin R 1a und R 1b unabhängig voneinander C 7 bis C 12 -Alkyl sind
und/oder eine oder mehrere Verbindungen der allgemeinen Formel (II):

worin R 2a und R 2b unabhängig voneinander C 7 bis C 12 -Alykl sind,
enthält.
摘要翻译：一种从粗气流中消耗芳族烃的方法，其包括使用包含一种或多种通式（I）的化合物的吸收介质：其中R 1a和R 1b独立地为C 7 -C 12烷基和/或一种或多种通式（II）：其中R 2a和R 2b独立地为C 7至C 12烯丙基。

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