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.

公开(公告)号：ES2208289T3

公开(公告)日：2004-06-16

申请号：ES00912516

申请日：2000-02-28

Applicant: BASF AG

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

IPC: B01J23/88 ,  B01J23/00 ,  B01J23/31 ,  B01J23/887 ,  B01J35/00 ,  C07B61/00 ,  C07C27/14 ,  C07C45/35 ,  C07C47/22 ,  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 an increased propene loading, in a first reaction stage, over a first fixed-bed catalyst and then the acrolein-containing product gas mixture of the first reaction stage is oxidized, in a second reaction stage, with an increased acrolein loading, over a second fixed-bed catalyst, the catalyst moldings in both reaction stages having an annular geometry.

公开(公告)号：DE50004251D1

公开(公告)日：2003-12-04

申请号：DE50004251

申请日：2000-02-28

Applicant: BASF AG

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

IPC: B01J23/88 ,  B01J8/02 ,  B01J8/04 ,  B01J8/06 ,  B01J23/00 ,  B01J23/31 ,  B01J23/887 ,  B01J35/00 ,  C07B61/00 ,  C07C27/14 ,  C07C45/35 ,  C07C47/22 ,  C07C51/21 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055

Abstract: In a process for the catalytic gas-phase oxidation of propene to acrolein, the reaction gas starting mixture is passed with a propene loading of >=160 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.

公开(公告)号：AU2003208789A1

公开(公告)日：2003-09-09

申请号：AU2003208789

申请日：2003-02-04

Applicant: BASF AG

Inventor： ROSOWSKI FRANK ,  BAIER MICHAEL ,  TENTEN ANDREAS ,  WOLF HANS-JOSEF ,  STORCK SEBASTIAN

IPC: C07D307/89 ,  B01J23/22 ,  B01J35/00 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31 ,  C07C63/16

Abstract: Production of phthalic anhydride by gas-phase oxidation of o-xylene or naphthalene in a tubular reactor involves using three or more different catalyst beds with controlled hot-spot temperatures. A method for the production of phthalic anhydride (I) by gas-phase oxidation of xylene and/or naphthalene in a thermostatted tube-bank reactor on 3 or more solid-bed catalysts in 3 different layers involves carrying out the process in such a way that the peak temperature (T2) in the second catalyst layer (in the direction of flow) is up to 50 degrees C below the peak temperature (T1) in the first layer and the peak temperature (T3) in the third layer is 30-100 degrees C below T1.

公开(公告)号：DE10119933A1

公开(公告)日：2002-10-24

申请号：DE10119933

申请日：2001-04-23

Applicant: BASF AG

Inventor： BORGMEIER FRIEDER ,  TENTEN ANDREAS ,  HIBST HARTMUT ,  MUELLER-ENGEL KLAUS JOACHIM ,  UNVERRICHT SIGNE ,  COX GERHARD

IPC: B01J23/00 ,  B01J23/28 ,  B01J27/057 ,  B01J37/02 ,  C07C45/33 ,  C07C45/35 ,  C07C57/05

Abstract: Acrolein and acrylic acid are produced from propane and propene by absorption/desorption of propane and propene from a gas mixture followed by oxidation, in which no heterogeneously catalyzed dehydrogenation of propane occurs between the desorption and oxidation stages without addition of oxygen. Acrolein and acrylic acid are produced from propane and propene by: (a) separation of propane and propene from a gas mixture (A) by absorption in an absorption medium; (b) separation of propane and propene from the absorbent to give a mixture (B) containing propane and propene; and (c) using mixture (B) for oxidation to the required product(s). In this process, no catalytic dehydrogenation of propane without the addition of oxygen is carried out between stages (b) and (c).

公开(公告)号：BR0016290A

公开(公告)日：2002-08-13

申请号：BR0016290

申请日：2000-12-11

Applicant: BASF AG

Inventor： BITTERLICH STEFAN ,  VOSS HARTWIG ,  HIBST HARTMUT ,  TENTEN ANDREAS ,  VOIGT INGOLF ,  PIPPARDT UTE

IPC: C07D307/60 ,  B01D69/04 ,  B01D69/06 ,  B01D69/12 ,  B01D71/02 ,  B01J20/28 ,  B01J23/00 ,  B01J23/34 ,  B01J27/198 ,  B01J35/02 ,  B01J35/06 ,  C07B41/00 ,  C07B61/00 ,  C07C5/48 ,  C07C45/35 ,  C07C45/38 ,  C07C51/215 ,  C07C51/25 ,  C07C51/265 ,  C07C253/24 ,  C07C253/26 ,  C07C253/28 ,  C07D307/89 ,  B01J35/00

Abstract: Reactor membranes advantageously useful in oxidation reactions of hydrocarbons involving oxygen comprise a selective oxidation catalyst on a mixed conducting, oxide ion selective ceramic membrane of the composition (Sr1-xCax)1-yAyMn1-zBzO3-delta, where A is Ba, Pb, Na, K, Y, an element of the lanthanide group or a combination thereof, B is Mg, Al, Ga, In, Sn, an element of the 3d or 4d period or a combination thereof, x is from 0.2 to 0.8, y is from 0 to 0.4, z is from 0 to 0.6, and delta is a number, dependent on x, y and z, that renders the composition charge neutral.

公开(公告)号：DE10046672A1

公开(公告)日：2002-03-28

申请号：DE10046672

申请日：2000-09-20

Applicant: BASF AG

Inventor： BORGMEIER FRIEDER ,  TENTEN ANDREAS ,  HIBST HARTMUT ,  MUELLER-ENGEL KLAUS ,  UNVERRICHT SIGNE ,  COX GERHARD

IPC: B01J23/00 ,  B01J23/28 ,  B01J27/057 ,  B01J37/02 ,  C07C45/33 ,  C07C45/35 ,  C07C57/05 ,  B01J23/18 ,  B01J23/22 ,  B01J27/02

Abstract: Acrolein and acrylic acid are produced from propane and propene by absorption/desorption of propane and propene from a gas mixture followed by oxidation, in which no heterogeneously catalyzed dehydrogenation of propane occurs between the desorption and oxidation stages without addition of oxygen. Acrolein and acrylic acid are produced from propane and propene by: (a) separation of propane and propene from a gas mixture (A) by absorption in an absorption medium; (b) separation of propane and propene from the absorbent to give a mixture (B) containing propane and propene; and (c) using mixture (B) for oxidation to the required product(s). In this process, no catalytic dehydrogenation of propane without the addition of oxygen is carried out between stages (b) and (c).

公开(公告)号：DE10034825A1

公开(公告)日：2002-01-31

申请号：DE10034825

申请日：2000-07-18

Applicant: BASF AG

Inventor： BORGMEIER FRIEDER ,  TENTEN ANDREAS ,  HIBST HARTMUT ,  MUELLER-ENGEL KLAUS JOACHIM ,  UNVERRICHT SIGNE ,  COX GERHARD

IPC: B01J23/00 ,  B01J23/28 ,  B01J27/057 ,  B01J37/02 ,  C07C45/33 ,  C07C45/35 ,  C07C57/05 ,  B01J23/16

Abstract: Acrolein and acrylic acid are produced from propane and propene by absorption/desorption of propane and propene from a gas mixture followed by oxidation, in which no heterogeneously catalyzed dehydrogenation of propane occurs between the desorption and oxidation stages without addition of oxygen. Acrolein and acrylic acid are produced from propane and propene by: (a) separation of propane and propene from a gas mixture (A) by absorption in an absorption medium; (b) separation of propane and propene from the absorbent to give a mixture (B) containing propane and propene; and (c) using mixture (B) for oxidation to the required product(s). In this process, no catalytic dehydrogenation of propane without the addition of oxygen is carried out between stages (b) and (c).

公开(公告)号：BR0008878A

公开(公告)日：2002-01-22

申请号：BR0008878

申请日：2000-02-28

Applicant: BASF AG

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

IPC: B01J23/88 ,  B01J23/00 ,  B01J23/31 ,  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：CA2402420A1

公开(公告)日：2001-09-20

申请号：CA2402420

申请日：2001-03-06

Applicant: BASF AG

Inventor： STORCK SEBASTIAN ,  TENTEN ANDREAS ,  RUPPEL WILHELM ,  WEIGUNY JENS

IPC: C07D307/60 ,  B01J27/28 ,  B01J38/04 ,  C07B61/00 ,  C07C51/215

Abstract: In a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of hydrocarbons having at least four carbon atoms using oxygen-containing gases in the presence of a volatile phosphorus compound over a catalyst comprising vanadium, phosphorus and oxygen in a shell-and-tube reactor unit having at least two successive cooled reaction zones, the temperature of the first reaction zone is from 350 to 450° C. and the temperature of the second and further reaction zones is from 350 to 480° C. and the temperature difference between the hottest reaction zone and the coolest reaction zone is at least 2° C.