公开(公告)号：EP2294060B1

公开(公告)日：2014-05-07

申请号：EP09728771.8

申请日：2009-03-23

Applicant: BASF SE

Inventor： WINDECKER, Gunther ,  WEIGUNY, Jens ,  WECK, Alexander ,  DAHLHOFF, Ellen ,  WEIßKER, Wolf-Steffen ,  HEILEK, Jörg ,  KRUG, Thomas ,  FREYBERGER, Ralf

IPC: C07D307/60 ,  C07C51/573

CPC classification number: C07C51/573 ,  C07C57/145

公开(公告)号：EP2406212B1

公开(公告)日：2013-05-15

申请号：EP10707540.0

申请日：2010-03-11

Applicant: BASF SE

Inventor： WIGBERS, Christof, Wilhelm ,  ERNST, Martin ,  SZARVAS, Laszlo ,  D'ANDOLA, Giovanni ,  DAHLHOFF, Ellen ,  IFFLAND, Gabriele ,  RAATZ, Peter ,  SIMON, Falk ,  FRAUENKRON, Matthias

IPC: C07C209/22

CPC classification number: C07C211/63 ,  C07C209/00 ,  C07C209/26 ,  C07C2603/74

公开(公告)号：EP2560945A2

公开(公告)日：2013-02-27

申请号：EP11718314.5

申请日：2011-04-18

Applicant: BASF SE

Inventor： KRONEMAYER, Helmut ,  DAHLHOFF, Ellen ,  LANVER, Andreas

IPC: C07C67/54

CPC classification number: C07C67/54 ,  C07C69/06

Abstract: In a process for purifying carboxylic esters such as ethyl formate, a carboxylic ester to be purified is distilled in the presence of an extractant, preferably by (a) allowing vapour of the carboxylic ester to be purified to ascend in a distillation column; (b) conveying the extractant in countercurrent to the vapour in an extractive distillation zone; (c) taking off pure carboxylic ester above the extractive distillation zone. The extractant is selected, for example, from among diols, polyols, open-chain or cyclic amides.

公开(公告)号：EP2931413B1

公开(公告)日：2017-08-09

申请号：EP13802644.8

申请日：2013-12-11

Applicant: BASF SE

Inventor： OLBERT, Gerhard ,  TELLAECHE HERRANZ, Carlos ,  ASPRION, Norbert ,  WECK, Alexander ,  DAHLHOFF, Ellen

IPC: B01J8/04 ,  B01J19/24 ,  C07C5/48

CPC classification number: C07C5/48 ,  B01J8/0453 ,  B01J8/0492 ,  B01J19/2485 ,  B01J2208/00265 ,  B01J2208/00283 ,  B01J2208/0053 ,  B01J2208/00849 ,  B01J2208/00911 ,  B01J2208/00938 ,  Y02P20/52 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08 ,  C07C11/09 ,  C07C11/167 ,  C07C15/46

公开(公告)号：EP2931413A2

公开(公告)日：2015-10-21

申请号：EP13802644.8

申请日：2013-12-11

Applicant: BASF SE

Inventor： OLBERT, Gerhard ,  TELLAECHE HERRANZ, Carlos ,  ASPRION, Norbert ,  WECK, Alexander ,  DAHLHOFF, Ellen

IPC: B01J8/04 ,  B01J19/24 ,  C07C5/48

CPC classification number: C07C5/48 ,  B01J8/0453 ,  B01J8/0492 ,  B01J19/2485 ,  B01J2208/00265 ,  B01J2208/00283 ,  B01J2208/0053 ,  B01J2208/00849 ,  B01J2208/00911 ,  B01J2208/00938 ,  Y02P20/52 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08 ,  C07C11/09 ,  C07C11/167 ,  C07C15/46

Abstract: The invention relates to a reactor (1) in the form of a cylinder with a vertical longitudinal axis, for performing an autothermal gas-phase dehydrogenation of a hydrocarbon-containing gas stream (2) with an oxygen-containing gas stream (3), obtaining a reaction gas mixture, on a heterogeneous catalyst, which is designed as monolith (4), wherein one or more catalytically active zones (5) are arranged in the interior of the reactor (1), each zone comprising a packing of monoliths (4) stacked one next to another and/or one on top of another and wherein a mixing zone (6) with fixed installations is provided upstream of each catalytically active zone (5). The reactor has: - one or more feeder lines (7) at the lower end thereof for the hydrocarbon-containing gas stream (2) to be dehydrogenated; - one or more feeder lines (9) that can be regulated independently of one another for the oxygen-containing gas stream (3) flowing into each of the mixing zones (6), each feeder line (9) feeding one or more distributors (10); - and one or more discharge lines (11) at the upper end of the reactor (1) for the reaction gas mixture from the autothermal gas-phase dehydrogenation, wherein the interior wall of the reactor (1) is furnished with a continuous insulation layer (13, 14, 15) and wherein the accessibility of one or each of the plurality of catalytically active zones (5) from outside the reactor is guaranteed via - one or more manholes (12), or wherein one or each of the plurality of catalytically active zones (5), each comprising a respective packing of monoliths stacked one next to another and/or one on top of an other including - the mixing zone (6) with fixed installations provided upstream of each catalytically active zone (5) - the one or more feeder lines (9) controllable independently of one another - and the one or more distributors (10) that are each fed via a respective feeder line (9), are constructed as a structural element (24) that can be individually installed or uninstalled.

Abstract translation: 本发明涉及一种具有垂直纵轴的圆筒形式的反应器（1），用于使含烃气流（2）与含氧气流（3）进行自热气相脱氢， 在非均相催化剂上获得反应气体混合物，其被设计为整料（4），其中一个或多个催化活性区域（5）布置在反应器（1）的内部，每个区域包括整料的填料（ 4）彼此堆叠并且/或一个在另一个之上，并且其中具有固定设备的混合区域（6）设置在每个催化活性区域（5）的上游。 反应器具有： - 在其下端的一个或多个供料管线（7），用于使含烃气流（2）脱氢; - 一个或多个馈送管线（9），其可以彼此独立地调节用于流入每个混合区域（6）的含氧气体流（3），每个馈送管线（9）馈送一个或多个分配器（ 10）; - 和在反应器（1）的上端处的一个或多个排出管线（11），用于反应气体混合物的自热气相脱氢，其中反应器（1）的内壁具有连续的绝缘层 （13,14,15），并且其中多个催化活性区域（5）中的一个或每个从反应器外部的可达性通过一个或多个检修孔（12）来保证，或者其中多个 催化活性区域（5），每个区域包括彼此相邻堆叠的和/或一个在另一个堆叠的单块的相应填料，包括 - 设置在每个催化活性区域（5）的上游的具有固定装置的混合区域（6） 所述一个或多个馈送线路（9）彼此独立地可控制，并且每个经由相应馈线（9）馈送的一个或多个分配器（10）被构造为可以单独地构成的结构元件（24） 安装或卸载

公开(公告)号：EP2560943A2

公开(公告)日：2013-02-27

申请号：EP11714782.7

申请日：2011-04-19

Applicant: BASF SE

Inventor： KRONEMAYER, Helmut ,  DAHLHOFF, Ellen ,  LANVER, Andreas

IPC: C07C67/03

CPC classification number: C07C67/03 ,  Y02P20/127 ,  C07C69/06

Abstract: In a process for preparing carboxylic esters by transesterification, a first feed stream comprising a first carboxylic ester, e.g. methyl formate, is introduced at the side into a reaction column at a first inlet located between the top and the bottom of the reaction column and a second feed stream comprising a first alcohol, e.g. ethanol, is introduced at the side into the reaction column at a second inlet located above the first inlet and the feed streams are reacted in a reaction zone of the reaction column to form a second carboxylic ester and a second alcohol. The first alcohol has a higher molecular weight than the second alcohol. A product fraction comprising the second carboxylic ester and unreacted first carboxylic ester is taken off at an offtake located above the second inlet. A bottom fraction comprising the second alcohol and unreacted first alcohol is taken off at the bottom of the reaction column. The product fraction is separated by distillation at a pressure which is different from the pressure in the reaction column into second carboxylic ester and a fraction containing unreacted first carboxylic ester and the fraction containing unreacted first carboxylic ester is at least partly recirculated to the reaction zone.

公开(公告)号：EP2294060A1

公开(公告)日：2011-03-16

申请号：EP09728771.8

申请日：2009-03-23

Applicant: BASF SE

Inventor： WINDECKER, Gunther ,  WEIGUNY, Jens ,  WECK, Alexander ,  DAHLHOFF, Ellen ,  WEIßKER, Wolf-Steffen ,  HEILEK, Jörg ,  KRUG, Thomas ,  FREYBERGER, Ralf

IPC: C07D307/60

CPC classification number: C07C51/573 ,  C07C57/145

Abstract: Process for decreasing fumaric acid deposits during the production of maleic anhydride by heterogeneous catalytic oxidation of a hydrocarbon with molecular oxygen in which the maleic anhydride is absorbed from the crude product mixture in an absorbent in an absorption column and desorbed again in a desorption column, wherein the total amount or a subquantity of the maleic anhydride-depleted absorbent, for targeted precipitation of the fumaric acid, is cooled and/or concentrated by vaporizing a part of the absorbent until the difference between the concentration of fumaric acid in the recycle stream at the outlet of the desorption column, under the conditions prevailing there and the equilibrium concentration of fumaric acid according to the solubility curve after the cooling and/or evaporation of a part of the absorbent is greater than or equal to 250 ppm by weight and the fumaric acid which is precipitated out as solid is removed in whole or in part from the absorbent recycle and the fumaric acid-depleted absorbent is recycled in whole or in part to the absorption column.