公开(公告)号：PT2609032E

公开(公告)日：2014-12-05

申请号：PT11748326

申请日：2011-07-29

Applicant: EVONIK DEGUSSA GMBH

Inventor： EICKHOFF HUBERTUS ,  LODE FLORIAN ,  AREVALO EDUARDO ,  BRENDEL MARC ,  WALLERT CLAUDIA

IPC: B01D1/28

公开(公告)号：AR082538A1

公开(公告)日：2012-12-12

申请号：ARP110103073

申请日：2011-08-24

Applicant: EVONIK DEGUSSA GMBH

Inventor： EICKHOFF HUBERTUS ,  DR LODE FLORIAN ,  DR AREVALO EDUARDO ,  DR BRENDEL MARC ,  DR WALLERT CLAUDIA

IPC: C01B15/03

Abstract: En un proceso para concentrar una solución acuosa de peróxido de hidrógeno para dar dos corrientes de peróxido de hidrógeno de diferente concentración en un aparato que comprende un preevaporador (1), una columna de destilación (2) y un compresor de vapor (3), en donde la solución acuosa de peróxido de hidrógeno por concentrar (4) se alimenta de forma continua en el preevaporador, el vapor (5) producido por evaporación en el preevaporador se alimenta a la columna de destilación, el producto inferior (6) obtenido en el preevaporador se extrae como una primera corriente concentrada de peróxido de hidrógeno (7), el vapor (8) producido en la columna de destilación se extrae de la columna de destilación en la parte superior de la columna, se comprende por medio del compresor de vapor y se usa para calentar el preevaporador y el producto inferior (9) obtenido en la columna de destilación se extrae como segunda corriente concentrada de peróxido de hidrógeno (10), donde dos soluciones concentradas de peróxido de hidrógeno tienen diferentes concentraciones en el rango del 50 al 70% en peso de peróxido de hidrógeno, se puede producir al mismo tiempo en una relación de libre elección alimentando parte del producto inferior obtenido en el preevaporador en forma líquida a la columna de destilación.

公开(公告)号：DE102010039748A1

公开(公告)日：2012-03-01

申请号：DE102010039748

申请日：2010-08-25

Applicant: EVONIK DEGUSSA GMBH

Inventor： EICKHOFF HUBERTUS ,  LODE FLORIAN DR ,  AREVALO EDUARDO DR ,  BRENDEL MARC DR ,  WALLERT CLAUDIA

IPC: C01B15/013

Abstract: In einem Verfahren zum Aufkonzentrieren von wässriger Wasserstoffperoxidlösung zu zwei Wasserstoffperoxidströmen unterschiedlicher Konzentration in einer Vorrichtung umfassend einen Vorverdampfer (1), eine Destillationskolonne (2) und einen Brüdenverdichter (3), bei dem kontinuierlich die zu konzentrierende wässrige Wasserstoffperoxidlösung (4) dem Vorverdampfer zugeführt wird, im Vorverdampfer durch Verdampfung erzeugte Brüden (5) der Destillationskolonne zugeführt werden, im Vorverdampfer erhaltenes Sumpfprodukt (6) als ein erster konzentrierter Wasserstoffperoxidstrom (7) entnommen wird, in der Destillationskolonne erzeugte Brüden (8) der Destillationskolonne am Kolonnenkopf entnommen, über den Brüdenverdichter verdichtet und zur Beheizung des Vorverdampfers verwendet werden und in der Destillationskolonne erhaltenes Sumpfprodukt (9) als ein zweiter konzentrierter Wasserstoffperoxidstrom (10) entnommen wird, lassen sich gleichzeitig zwei konzentrierte Wasserstoffperoxidlösungen unterschiedlicher Konzentration im Bereich von 50 bis 70 Gew.-% Wasserstoffperoxid in frei wählbarem Verhältnis herstellen, indem ein Teil des im Vorverdampfer erhaltenen Sumpfprodukts der Destillationskolonne flüssig zugeführt wird.

公开(公告)号：PL204612B1

公开(公告)日：2010-01-29

申请号：PL37478003

申请日：2003-09-23

Applicant: DEGUSSA

Inventor： CREUTZ MATTHIAS ,  EICKHOFF HUBERTUS ,  MAURER BERNHARD

IPC: C01B15/023 ,  B01J8/22 ,  B01J23/44

公开(公告)号：CA2340232C

公开(公告)日：2009-08-18

申请号：CA2340232

申请日：1999-08-28

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERTUS ,  SCHUTTE RUDIGER

IPC: B01J8/22 ,  B01J8/02 ,  B01J8/34 ,  B01J10/00 ,  B01J19/24 ,  B01J19/32 ,  C01B15/023

Abstract: The invention relates to a method for carrying out gas-liquid reactions in a flow reactor (1) having several parallel reactor chambers (8) which are open in t he direction of flow. Space-time yield can be increased by using a reactor having at least three chambers whose ratio of chamber width b to slot width s on average is greater than 3, where the slot width s is between 5 and 100 mm, s is preferably between 5 and 50 mm and s/b is between 5 and 100. The flow reactor provided for by the invention, which comprises at least three chambers (8) and presents the above ratio s/b, is preferably tubular and contains one or more plate stacks (5). The above method is suitable for the production of hydrogen peroxide in accordance with the anthraquinone method, using a suspension--hydrogenation catalyst.

公开(公告)号：AT321034T

公开(公告)日：2006-04-15

申请号：AT03722565

申请日：2003-04-29

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： BERGES JOSE ,  BRASSE CLAUDIA ,  EICKHOFF HUBERTUS ,  HAAS THOMAS ,  HOFEN WILLI ,  KAMPEIS PERCY ,  MOROFF GERALD ,  POHL WERNER ,  STOCHNIOL GUIDO ,  THIELE GEORG ,  ULLRICH NORBERT ,  WOELL WOLFGANG

IPC: C07B61/00 ,  C07D301/12 ,  C07D303/04

Abstract: The present invention relates to a process for the epoxidation of olefins by i) reacting an olefin with hydrogen peroxide in presence of an epoxidation catalyst and an alcoholic solvent; ii) separating product olefin oxide and unreacted olefin from the reaction product of step i); iii) recovering a stream comprising the alcoholic solvent, characterized by iv) subjecting the recovered stream of step iii) to hydrogenation.

公开(公告)号：DE59905358D1

公开(公告)日：2003-06-05

申请号：DE59905358

申请日：1999-08-28

Applicant: DEGUSSA

Inventor： SCHUETTE RUEDIGER ,  EICKHOFF HUBERTUS

IPC: B01J8/02 ,  B01J8/34 ,  B01J10/00 ,  B01J19/24 ,  B01J19/32 ,  C01B15/023

Abstract: The invention relates to a process for carrying out gas-liquid reactions in a continuous flow reactor having several reactor chambers arranged parallel to one another, open in the direction of flow. The space-time yield can be increased in that a reactor is used with at least three chambers, the ratio of chamber width b to slit width s of which is, on average, greater than 3 and the slit width s of which is in the range of 5 to 100 mm. Preferably, s is in the range of 5 to 50 mm and s/b in the range of 5 to 100. The continuous flow reactor according to the invention with the at least three reactor chambers and the above ratio s/b is preferably tubular and contains one or more plate stacks.

公开(公告)号：ES2182567T3

公开(公告)日：2003-03-01

申请号：ES99947292

申请日：1999-09-09

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERTUS ,  SCHUTTE RUDIGER

IPC: B01J8/18 ,  B01J8/22 ,  B01J8/34 ,  B01J8/44 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/32 ,  C01B15/023

Abstract: A bubble column can be operated using countercurrent flow including perforated trays. The space-time yield of gas-liquid reactions can be considerably increased if the perforated trays have a substantially uniform distribution of holes, if the cross-sectional area of the individual holes is 0.003 to 3 mm2, particularly 0.01 to 0.5 mm2, and if the open area of the trays is 3 to 20%, particularly 3 to 10%, and if the bubble column comprises passages for liquid between adjacent liquid zones.The bubble column can be used for carrying out gas-liquid reactions, such as oxidation reactions with air, with the gas and liquid preferably being passed in countercurrent flow through the column. Cocurrent flow may also be used.

公开(公告)号：TR200100595T2

公开(公告)日：2001-07-23

申请号：TR200100595

申请日：1999-08-28

Applicant: DEGUSSA

Inventor： SCHUETTE RUDIGER ,  EICKHOFF HUBERTUS

IPC: B01J8/02 ,  B01J8/34 ,  B01J10/00 ,  B01J19/24 ,  B01J19/32 ,  C01B15/023 ,  C01B15/23

Abstract: The invention relates to a process for carrying out gas-liquid reactions in a continuous flow reactor having several reactor chambers arranged parallel to one another, open in the direction of flow. The space-time yield can be increased in that a reactor is used with at least three chambers, the ratio of chamber width b to slit width s of which is, on average, greater than 3 and the slit width s of which is in the range of 5 to 100 mm. Preferably, s is in the range of 5 to 50 mm and s/b in the range of 5 to 100. The continuous flow reactor according to the invention with the at least three reactor chambers and the above ratio s/b is preferably tubular and contains one or more plate stacks.

公开(公告)号：ID28653A

公开(公告)日：2001-06-21

申请号：ID20010690

申请日：1999-09-09

Applicant: DEGUSSA

Inventor： EICKHOFF HUBERTUS ,  SCHUTTE RUDIGER

IPC: B01J8/18 ,  B01J8/22 ,  B01J8/34 ,  B01J8/44 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/32 ,  C01B15/023

Abstract: A bubble column can be operated using countercurrent flow including perforated trays. The space-time yield of gas-liquid reactions can be considerably increased if the perforated trays have a substantially uniform distribution of holes, if the cross-sectional area of the individual holes is 0.003 to 3 mm2, particularly 0.01 to 0.5 mm2, and if the open area of the trays is 3 to 20%, particularly 3 to 10%, and if the bubble column comprises passages for liquid between adjacent liquid zones.The bubble column can be used for carrying out gas-liquid reactions, such as oxidation reactions with air, with the gas and liquid preferably being passed in countercurrent flow through the column. Cocurrent flow may also be used.