公开(公告)号：BRPI0409340B1

公开(公告)日：2014-12-30

申请号：BRPI0409340

申请日：2004-04-13

Applicant: BASF AG

Inventor： DIEHL VOLKER ,  JAEGER ULRICH ,  HAMMON ULRICH ,  SCHROEDER JUERGEN ,  RISSEL STEFFEN

IPC: C07C51/44 ,  B01D3/32 ,  E04B1/00

Abstract: A separating column containing a sequence of mass transfer trays that are supported by at least one covered double-T support and/or covered U-shaped support.

公开(公告)号：MY137626A

公开(公告)日：2009-02-27

申请号：MYPI20052058

申请日：2005-05-09

Applicant: BASF AG

Inventor： DIETERLE MARTIN ,  MUELLER-ENGEL KLAUS ,  HECHLER CLAUS ,  HAMMON ULRICH ,  DIEFENBACHER ARMIN

IPC: C07C51/25

Abstract: 11 5 PREPARATION OF ACRYLIC ACID BY HETEROGENEOUSLY CATALYZED PARLIAL GAS PHASE OXIDATION OF PROPYLENE ABSTRACT 5 THE PRESENT INVENTION RELATES TO A PROCESS FOR PREPARING ACRYLIC ACID BY TWO-STAGE HE'- EROGENEOUSLY CATALYZED PANTIAL GAS PHASE OXIDATION OF PROPYLENE, IN WHICH THE PROPYL- ENE SOURCE USED IS A PRECEDING PROPANE DEHYDROCCNATION AND IN WHICH THE FIRST OXIDA- TION STAGE IS OPERATED WITH RESTRICTED PROPYLENE CONVERSION. AND UNCCNVERLCD PROPANE 0 AND PTOPYLENE PRESENT IN THE PRODUCT GAS MIXTUTE OF THE SECOND PARLIAL OXIDATION STAGE ARE RECYCLED SUBSTANTIALLY INTO THE PRECEDING PROPANE DEHYDROGENATION.

公开(公告)号：MY129265A

公开(公告)日：2007-03-30

申请号：MYPI9900911

申请日：1999-03-12

Applicant: BASF AG

Inventor： HAMMON ULRICH ,  HERBST HOLGER ,  NESTLER GERHARD

IPC: C07C51/50 ,  C07C51/44 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07 ,  C07C57/075

Abstract: IN A PROCESS FOR RECTIFICATIVE ISOLATION OF (METH) ARCYLIC ACID FROM A MIXTURE CONTAINING, AS MAIN COMPONENTS, (METH) ACRYLIC ACID AND AN ORGANIC LIQUID HAVING A HINGER BOILING POINT THAN (METH) ACRYLIC ACID, A SURFACTANT IS ADDED.

公开(公告)号：DE112004002211D2

公开(公告)日：2006-10-05

申请号：DE112004002211

申请日：2004-10-06

Applicant: BASF AG

Inventor： SCHLIEPHAKE VOLKER ,  LEITZ WOLFANG ,  HAMMON ULRICH

IPC: F28G3/00 ,  B01J8/06 ,  B08B9/04 ,  B23B51/04 ,  F28G3/02 ,  F28G3/10 ,  F28G9/00

Abstract: Removing solids from the tubes of a tubular heat exchanger comprises introducing a drill driven by a drilling machine into a tube of the heat exchanger, and cleaning out the solids contained in the tube.

公开(公告)号：DE102004061773A1

公开(公告)日：2006-07-06

申请号：DE102004061773

申请日：2004-12-22

Applicant: BASF AG

Inventor： DIEFENBACHER ARMIN ,  HAMMON ULRICH ,  WALTER THOMAS ,  SEIDER BRUNO ,  SCHNEIDER WOLFGANG ,  GERBER BERND ,  SCHLIEPHAKE VOLKER ,  BLECHSCHMITT MICHAEL

IPC: B01D3/16 ,  C07C57/04 ,  C07C69/54

Abstract: A tray column is proposed which includes column trays, two or more supports which are arranged on the underside of the column trays and support them and a bearing ring for the column trays on the inner wall of the tray column, wherein three-way joints of inner column wall, bearing ring and support are prevented by cutouts in the bearing ring.

公开(公告)号：BR0311497A

公开(公告)日：2005-03-15

申请号：BR0311497

申请日：2003-07-09

Applicant: BASF AG

Inventor： HAMMON ULRICH ,  MESCHKE JOCHEN ,  RAUH ULRICH ,  MUELLER-ENGEL KLAUS JOACHIM ,  SCHLEMMER PETER ,  SCHLIEPHAKE VOLKER

IPC: B01J4/00 ,  C07B61/00 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07B41/06

公开(公告)号：ES2213002T3

公开(公告)日：2004-08-16

申请号：ES00918748

申请日：2000-02-28

Applicant: BASF AG

Inventor： UNVERRICHT SIGNE ,  ARNOLD HEIKO ,  TENTEN ANDREAS ,  HAMMON ULRICH ,  NEUMANN HANS-PETER ,  HARTH KLAUS

IPC: B01J23/00 ,  B01J23/31 ,  B01J23/88 ,  B01J23/887 ,  B01J35/00 ,  C07B61/00 ,  C07C45/35 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05

Abstract: A process for the catalytic gas-phase oxidation of propene to acrylic acid, in which the reaction gas starting mixture is oxidized, with a high propene loading, in a first reaction stage, over a first fixed-bed catalyst which is housed in two successive reaction zones A, B, the reaction zone B being kept at a higher temperature than the reaction zone A, and the acrolein-containing product gas mixture of the first reaction stage is then oxidized in a second reaction stage, with a high acrolein loading, over a second fixed-bed catalyst which is housed in two successive reaction zones C, D, the reaction zone D being kept at a higher temperature than the reaction zone C.

公开(公告)号：DE59909692D1

公开(公告)日：2004-07-15

申请号：DE59909692

申请日：1999-03-04

Applicant: BASF AG

Inventor： HAMMON ULRICH ,  HERBST HOLGER ,  NESTLER GERHARD

IPC: C07C51/44 ,  C07C51/50 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07 ,  C07C57/075

Abstract: In a process for rectificative isolation of (meth)acrylic acid from a mixture containing, as main components, (meth)acrylic acid and an organic liquid having a higher boiling point than (meth)acrylic acid, the rectification is carried out with the addition of a surfactant.

公开(公告)号：ES2209870T3

公开(公告)日：2004-07-01

申请号：ES00926738

申请日：2000-03-15

Applicant: BASF AG

Inventor： OLBERT GERHARD ,  CORR FRANZ ,  REUTER PETER ,  WAMBACH LUDWIG ,  HAMMON ULRICH

IPC: B01J8/06 ,  B01J19/00 ,  B01J19/24 ,  C07C45/35 ,  C07C45/38 ,  H01Q21/08

Abstract: A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, methacrylic acid (MAA), acrolein, maleic anhydride (MA), glyoxal, phosgene, hydrocyanic acid or vinyl formamide (VFA). In a relatively large multitube reactor in which a large amount of heat of reaction is generated owing to the numerous catalyst tubes ( 17 ) and has to be removed, it is proposed that the ratio of tube spacing t to external tube diameter d a be made dependent on the reactor diameter or on the external tube bundle diameter d RBa . At an external diameter of the catalyst tube bundle ( 18 ) of more than 4 meters, a ratio of tube spacing d to external tube diameter d a of at least 1.3 is preferred.

公开(公告)号：ES2209832T3

公开(公告)日：2004-07-01

申请号：ES00910722

申请日：2000-02-28

Applicant: BASF AG

Inventor： UNVERRICHT SIGNE ,  ARNOLD HEIKO ,  TENTEN ANDREAS ,  HAMMON ULRICH

IPC: B01J8/02 ,  B01J8/04 ,  B01J23/88 ,  B01J8/06 ,  B01J23/887 ,  B01J37/02 ,  C07B61/00 ,  C07C51/235 ,  C07C51/25 ,  C07C57/04 ,  C07C57/055

Abstract: In a process for the catalytic gas-phase oxidation of acrolein to acrylic acid, the reaction gas starting mixture is passed, with an acrolein loading of >=150 l (s.t.p.)/l.h, over a fixed-bed catalyst which is housed in two spatially successive reaction zones A, B, the reaction zone B being kept at a higher temperature than the reaction zone A.