公开(公告)号：US10479751B2

公开(公告)日：2019-11-19

申请号：US14915929

申请日：2014-08-11

申请人： EVONIK DEGUSSA GMBH

发明人： Jürgen Mosler ,  Christian Psiorz ,  Franz-Felix Kuppinger ,  Raphael Schriewer ,  Arnd Bruhns ,  Armin Rix ,  Peter Kreis ,  Ralf Meier ,  James Edward Elder

IPC分类号： C07C51/48 ,  C07C51/25 ,  B01J19/30 ,  B01D3/14 ,  B01L3/16 ,  B01D3/16 ,  B01D3/00 ,  B01D3/22 ,  B01J10/00 ,  C07C57/04

摘要： The present invention provides an apparatus comprising a feed arranged below the middle of the apparatus, a quenching agent inlet arranged above the feed, an outlet arranged below the feed and a draw arranged above the quenching agent inlet, the apparatus having a region provided with one or more packing elements, wherein at least one means which ensures the formation of a liquid layer having a height of at least 1 cm is present between the quenching agent inlet and a packing element present between the quenching agent inlet and feed. The present invention also provides a process for preparing acrylic acid, which includes a step of oxidizing acrolein, wherein the reaction mixture obtained in this oxidation is contacted with water as quenching agent in an inventive apparatus, and a composition obtainable as bottom product in the process according to the invention, comprising acrylic acid and water.

公开(公告)号：US20160257637A1

公开(公告)日：2016-09-08

申请号：US14915929

申请日：2014-08-11

申请人： EVONIK DEGUSSA GMBH

发明人： Jürgen Mosler ,  Christian Psiorz ,  Franz-Felix Kuppinger ,  Raphael Schriewer ,  Arnd Bruhns ,  Armin Rix ,  Peter Kreis ,  Ralf Meier ,  James Edward Elder

IPC分类号： C07C51/25 ,  B01D3/22 ,  B01D3/00 ,  C07C57/04 ,  B01J10/00

CPC分类号： C07C51/252 ,  B01D3/009 ,  B01D3/143 ,  B01D3/16 ,  B01D3/163 ,  B01D3/22 ,  B01J10/00 ,  B01J19/30 ,  B01J2219/3325 ,  C07C51/48 ,  C07C57/04

摘要： The invention relates to a device comprising a feed which is arranged below the center of the device, a quenching agent inlet which is arranged above the feed, an outlet which is arranged below the feed, and a discharge which is arranged above the quenching agent inlet, said device having a region provided with one or more packets between the quenching agent inlet and the feed. The device is characterized in that at least one means is provided between the quenching agent inlet and a packet provided between the quenching agent inlet and the feed, said means ensuring the formation of a liquid layer with a height of at least 1 cm. The invention further relates to a method for producing acrylic acid, having a step of oxidizing acrolein, wherein the reaction mixture obtained from the oxidation process is brought into contact with water as the quenching agent in a device according to the invention, and to a composition which can be obtained as a bottom product in the method according to the invention, said composition containing acrylic acid and water.

摘要翻译： 本发明涉及一种装置，其包括布置在装置中心下方的进料，设置在进料上方的淬火剂入口，布置在进料下方的出口和布置在淬火剂入口上方的排出口 所述装置具有在淬火剂入口和进料之间设置有一个或多个分组的区域。 该装置的特征在于，在淬火剂入口和设置在淬火剂入口和进料之间的包装件之间提供至少一个装置，所述装置确保形成具有至少1cm的高度的液体层。 本发明还涉及一种制备丙烯酸的方法，其具有氧化丙烯醛的步骤，其中从氧化工艺获得的反应混合物作为本发明的装置中的猝灭剂与水接触， 其可以作为根据本发明的方法的底部产物获得，所述组合物含有丙烯酸和水。